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Asparagus bean
Asparagus bean
Asparagus bean
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Asparagus bean
SpeciesVigna unguiculata (L.) Walp.
Cultivar group'sesquipedalis'
CultivarAsparagus bean
Yardlong bean, illustration from the Japanese agricultural encyclopedia Seikei Zusetsu (1804)

The asparagus bean (Vigna unguiculata subsp. sesquipedalis) is a legume cultivated for its edible green pods containing immature seeds, like the green bean.[1] It is also known as yardlong bean, pea bean, long-podded cowpea, Chinese long bean, snake bean,[2] bodi, and bora.[3] Despite the common name of "yardlong", the pods are actually only about half a yard long, so the subspecies name sesquipedalis (one-and-a-half-foot-long; 1.5 feet (0.50 yd)) is a more accurate approximation.

A variety of the cowpea, the asparagus bean is grown primarily for its strikingly long (35 to 75 centimetres (1.15 to 2.46 ft)) immature green pods and has uses very similar to those of the green bean. This plant is in a different genus from the common bean. The different colors of seeds usually distinguish the many varieties. It is a vigorous climbing annual vine. The plant is subtropical/tropical and most widely grown in the warmer parts of South Asia, Southeast Asia, and southern China.

Cultivation

[edit]

The pods, which can begin to form 60 days (2.0 months) after sowing, hang in groups of two or more. They are used as vegetables when they are picked before they reach full maturity; however, overlooked mature pods can be used like dry beans. When harvesting, it is important not to pick the buds above the beans since the plant will set many more beans on the same stem in the future. The plants take longer to reach maturity than bush beans, but once they start producing, the pods are quick-growing, and daily checking and harvesting are often necessary. In temperate climates, the plants can produce beans until the first frost. The plant attracts many pollinators, specifically various types of wasps and ants.

The plant is easy to grow in areas with hot and humid summers where other green bean varieties may succumb to heat damage in summer, and as such, is worthy of more cultivation in these areas. This plant is particularly easy to grow in the Southeastern United States and southerly Midwestern United States, where it is not currently grown commonly.

Uses

[edit]

Culinary

[edit]
Flower of yardlong bean
Seeds of yardlong beans

The crisp, tender pods are eaten both fresh and cooked. They are at their best when young and slender. They are sometimes cut into short sections for cooking uses. As a West Indian dish, they are often stir-fried with potatoes and shrimp. In Odisha, India, they are used to make a variety of dishes, especially a sour dish - ଝୁଡ଼ୁଙ୍ଗ ବେସର [judunga besara] cooking along with mustard sauce and lime. They are also used in stir-fries in Chinese cuisine, Thai cuisine and Kerala cuisine.

Asparagus bean stew from Croatia

In the Philippines, they are widely eaten stir-fried with soy sauce, garlic, and hot pepper and in an all-vegetable dish called utan, or are stewed in bagoong-based dishes such as pinakbet and dinengdeng. Other Filipino dishes that have yardlong beans as ingredients are sinigang and kare-kare. Yardlong beans are also separated from the pod and are cooked with the buds of the alukon tree (Broussonetia luzonica, synonym Alleaenthus luzonicus) and other vegetables in a dish called agaya in northeastern Luzon.

In Suriname cuisine, they are served with roti. Similarly, in Trinidad and Tobago and Guyana, it is an Indo-Trinidadian/Indo-Guyanese dish that is fried or curried and served with roti or rice.

They are called මෑ කරල් (mae karal) in Sri Lankan cuisine, and are used for stir-fries and as a curry. The Department of Agriculture (Sri Lanka) has released eight varieties of the bean for cultivation.[4]

Nutrition

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They are a good source of carbohydrates, protein, vitamin A, thiamin, riboflavin, iron, phosphorus, and potassium, and vitamin C, folate, magnesium, and manganese.

Yardlong bean, raw
Nutritional value per 100 g (3.5 oz)
Energy197 kJ (47 kcal)
8.35 g
0.4 g
2.8 g
Vitamins and minerals
VitaminsQuantity
%DV†
Vitamin A equiv.
5%
43 μg
Thiamine (B1)
9%
0.107 mg
Riboflavin (B2)
8%
0.11 mg
Niacin (B3)
3%
0.41 mg
Pantothenic acid (B5)
11%
0.55 mg
Vitamin B6
1%
0.024 mg
Folate (B9)
16%
62 μg
Vitamin C
21%
18.8 mg
MineralsQuantity
%DV†
Calcium
4%
50 mg
Iron
3%
0.47 mg
Magnesium
10%
44 mg
Manganese
9%
0.205 mg
Phosphorus
5%
59 mg
Potassium
8%
240 mg
Sodium
0%
4 mg
Zinc
3%
0.37 mg
Link to USDA Database entry
†Percentages estimated using US recommendations for adults,[5] except for potassium, which is estimated based on expert recommendation from the National Academies.[6]

A serving of 100 grams of yardlong beans contains 47 calories, 0 g of total fat, 4 mg sodium (0% daily value), 8 g of total carbohydrates (2% daily value), and 3 g of protein (5% daily value).

References

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Asparagus bean

View on Grokipedia
from Grokipedia
The asparagus bean (Vigna unguiculata subsp. sesquipedalis), also known as yardlong bean or Chinese long bean, is a warm-season annual in the family , cultivated for its exceptionally long, edible immature pods that can measure up to 1 meter in length. This climbing vine, which reaches heights of 2 to 4 meters and requires trellising for support, produces slender, pencil-thin pods containing small, immature seeds, harvested primarily as a in Asian cuisines for stir-fries, salads, and soups. Native to southeastern with a history of cultivation dating back centuries, it thrives in subtropical and tropical climates with full sun, well-drained , and temperatures above 20°C (68°F), fixing atmospheric to enrich the soil as a beneficial crop in rotations. Beyond its pods, the yields nutritious dry seeds used as pulses or sprouts, and tender leaves that serve as fodder for or in human diets. Economically significant in regions like , , and increasingly in the United States, the asparagus bean is valued for its high yield—up to 10 tons per under optimal conditions—and adaptability to smallholder farming with minimal inputs. Nutritionally, the fresh pods provide a good source of protein (about 2-3% by weight), (up to 20 mg per 100 g), , , , iron, and , contributing to dietary diversity and prevention in tropical diets. The plant's violet flowers and cascading pods also lend ornamental appeal in gardens and urban landscapes, while its pest resistance and make it resilient compared to other podded like green beans.

Taxonomy and Description

Taxonomy

The asparagus bean, scientifically known as Vigna unguiculata subsp. sesquipedalis (L.) Verdc., belongs to the family (also known as Leguminosae), subfamily , and genus within the order . This classification places it among the , characterized by their nitrogen-fixing capabilities through symbiotic relationships with . The subspecies status reflects its close relation to the cowpea (V. unguiculata subsp. unguiculata), from which it diverged through domestication and selection, primarily for elongated pod traits. Genomic analyses, including chromosome-scale assemblies, reveal extensive structural variations between the two subspecies, such as gene losses and rearrangements that contribute to differences in pod length and morphology, while maintaining overall genetic proximity within the Vigna unguiculata complex. Synonyms for V. unguiculata subsp. sesquipedalis include Vigna sesquipedalis (L.) Fruw. and Dolichos sesquipedalis L., the latter from its earlier classification in the genus Dolichos. The sesquipedalis derives from Latin, combining sesqui- (meaning "one and a half") and pes (meaning "foot"), referring to the pods' length of approximately a foot and a half, which can exceed 1 meter in cultivated forms. This highlights the plant's distinctive trait, distinguishing it from other Vigna subspecies. Common names such as yardlong bean, snake bean, and Chinese long bean further emphasize this characteristic, reflecting its widespread cultivation in . Taxonomically, the subspecies was first described by Carl Linnaeus in 1763 as Dolichos sesquipedalis in the second edition of Species Plantarum. It was later reclassified into the genus Vigna by Frank Bernard Verdcourt in 1970, aligning it with modern phylogenetic understanding of the Fabaceae. This transfer underscores the taxonomic revisions in the 20th century that recognized Vigna as a distinct genus from Dolichos, based on morphological and genetic evidence.

Botanical Description

The asparagus bean (Vigna unguiculata subsp. sesquipedalis) is an annual twining herbaceous vine in the family, characterized by its vigorous climbing growth habit that can reach lengths of 3 to 5 meters (9 to 16 feet) with the aid of support structures such as trellises. The stems are slender and twining, enabling the plant to ascend vertically, while the leaves are trifoliate with three ovate leaflets typically measuring 5 to 15 cm (2 to 6 inches) in length, providing a lush, tropical appearance. This is closely related to the but distinguished by its elongated pods. The flowers are pale yellow to violet, often appearing in axillary racemes, and are primarily self-pollinating, though insect activity can occasionally influence pollination. These blooms develop into the plant's signature pods, which are slender, cylindrical, and green when immature, measuring 30 to 100 cm (12 to 40 inches) in length and suitable for harvest at pencil-thickness for tenderness. As the pods mature, they ripen to pale green and become inflated, each containing 10 to 20 small, kidney-shaped seeds that vary in color from white to red, black, or purple. The seeds are oblong and approximately 6 to 9 mm long, exhibiting high germination rates of 80 to 90% under optimal warm conditions. Reproductively, the asparagus bean operates as a warm-season annual with a life cycle spanning 60 to 90 days from sowing to first harvest, during which it continuously produces pods if regularly picked. Its root system is extensive and tenacious, featuring nodules formed in with bacteria that enable biological , thereby enhancing soil fertility without external inputs. This adaptation supports the plant's rapid growth in tropical and subtropical environments.

History and Distribution

Origins and Domestication

The asparagus bean (Vigna unguiculata subsp. sesquipedalis) is a cultivated of the (V. unguiculata), which originated from wild progenitors distributed across . Linguistic, archaeological, and genetic evidence indicates that occurred in this region at least 5,000 years ago, likely in both West and , with early agricultural adoption tied to the emergence of farming communities in and forest zones. Wild relatives, such as V. unguiculata subsp. dekindtiana and subsp. stenophylla, persist in tropical African habitats, exhibiting traits like small seeds, shattering pods, and prostrate growth that contrast with domesticated forms. Archaeological remains provide the earliest direct evidence of domesticated from central , dated to approximately 3,700 calibrated years before present (around 1700 BCE), suggesting initial selection in for improved yield and adaptability to local agroecosystems. Key domestication traits emerged through human selection, including non-shattering pods to facilitate seed retention and harvesting, elongated pod lengths exceeding 50 cm in the asparagus bean variant, and a vining habit with tendrils for climbing support, distinguishing it from wild cowpeas' compact, . These adaptations reduced and enhanced organ size, enabling cultivation in diverse environments while maintaining the plant's nitrogen-fixing benefits in systems. The subspecies likely spread to via ancient maritime and overland trade routes, with evidence of presence in the by around 1500 BCE, possibly introduced through interactions between African and South Asian populations. In southern and , further emphasized the production of long, tender pods for use, leading to the distinct asparagus bean form adapted to humid tropical conditions. The earliest documented references to its cultivation in appear during the around 1008 CE, reflecting its integration into regional agriculture by that time. Genetic studies, including a 2019 chromosome-scale assembly of an Asian , reveal bottlenecks characterized by reduced nucleotide diversity in cultivated lines compared to wild African populations, underscoring a history of intense selection post-introduction to . Phylogenetic analyses confirm an African-Asian divergence, with Asian asparagus bean accessions showing lower heterozygosity and signatures of recent adaptive for pod elongation and photoperiod sensitivity. Quantitative trait loci (QTL) mapping has identified genomic regions associated with these traits, supporting models of multiple events within the V. unguiculata complex.

Global Cultivation and Varieties

The asparagus bean ( unguiculata subsp. sesquipedalis), also known as yardlong bean, is extensively cultivated in , where over 90% of global production occurs, primarily in subtropical and tropical climates of , , and Southeast Asian countries such as , , , and . Emerging cultivation is expanding to , leveraging its native origins for increased production in regions like ; in the , it is gaining traction in for commercial and home gardening, and in within tropical farming systems; while in , it is grown as a crop or in warmer southern areas. Global annual production is approximately 2 million metric tons, based on recent estimates from around 200,000 hectares, with steady growth driven by demand in Asian markets. This output underscores its role as a key in warm climates, where it thrives with minimal inputs compared to other beans. Common cultivars include 'Red Noodle', prized for its striking burgundy-red pods that maintain tenderness when young, and 'Orient Wonder', noted for its dark green, slender pods and adaptability to varying conditions. Hybrid varieties, such as those developed for resistance to and root-knot nematodes, are increasingly bred to enhance yield stability in pest-prone areas. Pod lengths vary significantly among varieties, typically ranging from 35 to 75 cm, with optimal harvest at 30-50 cm for tenderness and flavor. In Asia, the crop plays a vital economic role in smallholder farming systems, supporting food security for millions of rural households through high yields on limited land. Exports of fresh and frozen pods from Thailand and Vietnam contribute to regional trade, targeting markets in Europe and North America. A key challenge in global distribution is adapting the heat-loving plant to temperate climates outside its core regions, addressed through breeding programs focused on photoperiod insensitivity and tolerance to enable wider cultivation.

Cultivation

Environmental Requirements

The asparagus bean (Vigna unguiculata subsp. sesquipedalis), a warm-season crop, thrives in tropical and subtropical climates with average temperatures ranging from 20°C to 35°C, and optimal growth occurring between 25°C and 30°C. It is highly -sensitive and requires sowing after all danger of has passed, with temperatures at least 20–22°C for reliable ; exposure to causes the plants to wither. As a day-length neutral plant, it performs well under photoperiods of 12–14 hours but may experience delayed flowering in extended long-day conditions. This prefers well-drained, fertile loamy soils with a range of 6.0–7.0, though it tolerates slightly acidic conditions down to 5.5. Its ability to fix atmospheric allows adaptation to poorer soils, reducing the need for fertilizers, but it benefits from amendments to support development and pod production. Heavy, waterlogged soils should be avoided, as the plant is intolerant of flooding. Asparagus bean requires moderate water availability, with seasonal rainfall of 600–1,000 mm or equivalent supporting optimal yields; it exhibits once established but is sensitive to moisture stress during flowering and pod set, which can result in shorter, fibrous pods. Consistent equivalent to about 25 mm per week is ideal, particularly in arid or semi-arid regions where supplemental prevents yield reductions. Full sun exposure is essential for vigorous growth and pod development, with at least 6–8 hours of direct daily. The vining habit necessitates support structures like trellises, with plants spaced 15–30 cm (6–12 inches) apart in rows 90–120 cm (3–4 feet) wide to allow for climbing and air circulation. Best suited to lowland tropical regions, asparagus bean shows reduced performance at mid-elevations due to cooler temperatures.

Propagation and Management

Asparagus bean ( unguiculata subsp. sesquipedalis), commonly known as yardlong bean, is primarily propagated by direct seeding, as vegetative methods such as cuttings or are not commonly practiced due to the plant's vigorous growth from seed. Seeds should be sown 1-2 inches (2.5-5 cm) deep in well-prepared soil warmed to at least 18°C (65°F), ideally using raised beds or black to accelerate warming in cooler regions; germination typically occurs within 4-10 days under optimal conditions of 24-29°C (75-85°F). Inoculation with bacteria prior to planting enhances , reducing the need for external fertilizers. For planting, direct after the last ensures establishment, with seeds spaced 10–30 cm (4–12 inches) apart in rows 90–120 cm (3–4 feet) wide to accommodate the habit; succession sowing every 2-3 weeks extends the period through summer and into fall by staggering maturity. Vines can reach 2-3 meters in length, necessitating sturdy support structures such as trellises, poles, or tripods at least 2 meters (7 feet) high, installed at planting to train vines upward and prevent tangling. around 6.0-7.0 supports healthy growth, though detailed preferences align with general requirements. Maintenance involves regular to minimize competition, especially in the early growth stage, and during dry periods to maintain even moisture without waterlogging. Fertilization should be minimal, focusing on and if tests indicate deficiencies, as excess promotes leafy growth at the expense of pods due to the plant's natural nitrogen-fixing ability via root nodules. Pest monitoring is essential, targeting common issues like (Aphis craccivora), , and bean beetles, which can be managed through integrated strategies including row covers, applications, or introducing beneficial insects. Recent advances (as of 2024) include protected cultivation techniques, such as systems, which can increase pod yields by 15–25% and extend the harvest period by 6–10 days while improving quality. New varieties like Kiew Dok Plus offer enhanced resistance, longer pods, and higher yields up to 14 t/ha. Harvesting begins 60-70 days after , when pods are immature, pencil-thick, and snap easily—typically 30-90 cm long—continuing every 2-3 days to stimulate further production and prevent seed set. Yields typically range from 0.3–0.5 kg of fresh pods per over the season with continuous picking extending output through frost-free periods. Pods are hand-picked to avoid damage, and post-harvest, they store best under cool, humid conditions to retard toughening. Common pests beyond include root-knot nematodes (Meloidogyne spp.) and spider mites, while diseases such as anthracnose ( spp.) and mosaic viruses pose risks in humid environments. Integrated management emphasizes disease-free seed, every 2-3 years with non-hosts, resistant varieties where available, and cultural practices like removing debris to reduce buildup; fungicides may be used judiciously for severe outbreaks.

Culinary Uses

Preparation Methods

Asparagus beans, also known as yardlong beans, are harvested at the young, tender stage to ensure optimal texture and flavor, typically when pods reach 10 to 12 inches in length and are about half the diameter of a , snapping crisply when bent. This stage occurs roughly two months after planting, before seeds fully develop inside the pods, and daily picking is essential to promote ongoing vine production, as mature pods inhibit further flowering. Preparation begins with thorough rinsing under cold running water to remove dirt and debris, followed by trimming or snapping off the stem and blossom ends; very young pods under 1 cm in diameter can be consumed raw in salads for a fresh, crunchy addition. Pods are often cut into 1- to 2-inch segments to facilitate even cooking and easier eating. Key cooking methods emphasize brief exposure to heat to preserve tenderness and prevent stringiness: stir-frying over high heat for 3 to 5 minutes retains a crisp texture, while boiling or steaming for the same duration yields tender yet firm results suitable for various dishes. Pickling in a with spices offers a preservation option, allowing the beans to be stored and used later as a tangy . Overcooking leads to toughness, so monitoring closely is advised. For storage, freshly harvested asparagus beans remain viable for several days in the at cool temperatures, ideally wrapped loosely to maintain and avoid ; blanching in for 2 to 3 minutes before freezing extends up to several months without significant quality loss. Red-pod varieties may undergo a color change during cooking, often shifting to or darker hues due to breakdown.

Cultural and Regional Applications

In Asian cuisines, the asparagus bean, also known as yardlong bean, serves as a versatile staple, particularly in stir-fries, curries, and salads across various countries. In Chinese cooking, it is frequently featured in quick stir-fries with and , enhancing dishes with its crisp texture and mild, nutty flavor that complements proteins like or . In Indian cuisine, it is prepared as karamani poriyal or in simple curries, where the pods are tempered with mustard seeds, curry leaves, and for a savory side dish served with rice or flatbreads. Thai preparations often include it in spicy salads like yum tua fak yao, where blanched pods are tossed with lime, chili, , and herbs for a tangy, refreshing contrast. Beyond , the asparagus bean integrates into diverse regional dishes, reflecting its adaptability in global food traditions. In African cuisines, it is a common green vegetable in stews and sauces, valued for its ability to absorb flavors from spices and meats in vegetable-heavy preparations typical of West and East African meals. In cooking, it appears in curries and braised dishes, introduced through historical trade routes and migration, where it adds length and tenderness to one-pot meals. Emerging in Western fusion cuisine, it is grilled or sautéed in Mediterranean-inspired recipes, substituting for green beans in salads or sides with , lemon, and herbs to highlight its asparagus-like earthiness. The asparagus bean holds cultural significance in some Asian traditions, particularly for its role in promoting health and prosperity. In certain Chinese communities, its long pods symbolize longevity and are incorporated into meals to wish for a long life. In traditional Asian , the beans are used to support digestion, owing to their high fiber content that aids in relieving and promoting gut health. Non-culinary applications of the asparagus bean are limited but practical in rural settings. The , including leaves and vines, serve as occasional for , providing nutritious in tropical regions where they grow abundantly. In markets, asparagus beans are primarily available fresh, with bright green pods sold whole or trimmed, ideal for immediate use in cooking; they can be stored refrigerated for up to a week. Dried seeds from mature pods are traded for or cooking as a , while canned versions appear in exports for convenience in stews and soups, though less common than fresh forms.

Nutritional Value

Composition

The asparagus bean, also known as yardlong bean ( unguiculata subsp. sesquipedalis), primarily consists of immature pods that are approximately 88% by weight, contributing to its low caloric density. Per 100 g of raw pods, macronutrients include 2.8 g of protein, 9.2 g of s (of which about 3.7 g is ), and 0.4 g of fat. These values position the asparagus bean as a low-fat with moderate protein content similar to other podded , where the aids in digestive health without significantly impacting overall carbohydrate intake. Micronutrients in raw asparagus bean pods are notable for their vitamin and mineral profile, with ranging from 15–20 mg per 100 g, providing a significant portion of daily needs, alongside precursors like beta-carotene (54 µg RAE per 100 g) and at around 62 mcg per 100 g. Key minerals include (240 mg per 100 g), iron (0.5 mg per 100 g), and phosphorus (about 59 mg per 100 g), which support balance, oxygen transport, and , respectively. Nutrient levels can vary by ; for example, iron content in some varieties ranges from 0.85–1.28 mg per 100 g. The caloric value of raw asparagus bean pods is approximately 47 kcal per 100 g, comparable to green beans but distinguished by slightly higher fiber content, making it a suitable low-energy option for volume eating. Beyond basic nutrients, the pods contain bioactive compounds such as flavonoids and saponins, which exhibit antioxidant properties by scavenging free radicals and reducing oxidative stress in vitro. Nutritional composition varies between immature pods and mature seeds; while pods emphasize hydration and micronutrients, mature seeds are richer in protein, reaching up to 27% dry weight, along with higher concentrations of carbohydrates and certain minerals.

Health Aspects

The asparagus bean ( unguiculata subsp. sesquipedalis) offers several health benefits primarily derived from its nutrient profile, including that supports digestive health by promoting regular bowel movements and preventing . Its content contributes to immune function by aiding in the production of and acting as an to combat . Additionally, the iron present in asparagus beans contributes to oxygen transport in the blood, though levels are modest and supplementation may be needed for prevention in deficient populations. As a , asparagus bean contributes to through symbiotic , which enriches and indirectly enhances the nutritional quality of crops in sustainable farming systems. In dietary contexts, a recommended serving of 100-200 grams integrates well into balanced diets, providing plant-based protein suitable for and supporting overall protein needs without animal sources. Recent studies from the have identified bioactive compounds such as polyphenols and in asparagus beans, which exhibit effects by scavenging free radicals and modulating inflammatory pathways. Potential risks include anti-nutritional factors like trypsin inhibitors, phytates, and in raw pods and seeds, which can interfere with nutrient absorption and cause gastrointestinal discomfort, though these are largely inactivated by proper cooking methods such as . Allergic reactions to asparagus beans are rare but possible, similar to other , manifesting as mild symptoms like oral itching or, in uncommon cases, more severe responses in sensitized individuals.

References

  1. https://edis.ifas.ufl.edu/publication/HS1268
  2. https://plants.usda.gov/DocumentLibrary/plantguide/pdf/pg_viuns2.pdf
  3. https://nap.nationalacademies.org/read/11763/chapter/16
  4. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77251411-1
  5. https://www.gbif.org/species/3911281
  6. https://www.cabidigitallibrary.org/doi/full/10.1079/cabicompendium.56376
  7. https://molhort.biomedcentral.com/articles/10.1186/s43897-022-00028-x
  8. https://pmc.ncbi.nlm.nih.gov/articles/PMC10281604/
  9. https://www.nparks.gov.sg/florafaunaweb/flora/5/8/5825
  10. https://www.gbif.org/species/144101373
  11. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:493233-1
  12. https://www.smartgardener.com/plant/156-bean-yardlong-asparagus
  13. https://sowrightseeds.com/products/asparagus-yard-long-bean
  14. https://www.superseeds.com/products/yard-long-bean-90-days-heirloom
  15. https://www.nature.com/articles/s41597-019-0130-6
  16. https://academic.oup.com/g3journal/article/14/6/jkae071/7665325
  17. https://www.mdpi.com/2223-7747/11/4/532
  18. https://pmc.ncbi.nlm.nih.gov/articles/PMC11335020/
  19. https://pmc.ncbi.nlm.nih.gov/articles/PMC3336956/
  20. https://plantspeopleplanet.au/indian-ocean/
  21. https://world-crops.com/yard-long-bean/
  22. https://nap.nationalacademies.org/read/11763/chapter/14
  23. https://www.echocommunity.org/en/resources/70763b26-2025-4480-89fb-b273cfca4971
  24. https://www.researchgate.net/publication/349218782_Yard-long_bean
  25. https://www.rareseeds.com/long-bean-chinese-red-noodle
  26. https://www.botanicalinterests.com/products/orient-wonder-pole-yard-long-bean-seeds
  27. https://www.seedworld.com/us/2024/08/20/new-long-bean-varieties-are-more-pest-resistant/
  28. https://www.mdpi.com/2073-4395/11/4/682
  29. https://openknowledge.fao.org/server/api/core/bitstreams/107cb93c-0855-4f98-a7ca-bd634a863cc5/content
  30. https://www.researchgate.net/publication/286394843_Effect_of_Varieties_on_Growth_and_Yield_of_Yard_Long_Bean_under_Songhkla_Conditions_Southern_Thailand
  31. https://academic.oup.com/aob/article/109/6/1185/138542
  32. https://www.omafra.gov.on.ca/CropOp/en/spec_veg/pea_bean/yard.html
  33. https://plants.ces.ncsu.edu/plants/vigna-unguiculata/
  34. https://www.lsuagcenter.com/portals/communications/news/news_archive/2013/may/get_it_growing/give-the-yardlong-bean-a-try
  35. https://blogs.ifas.ufl.edu/hernandoco/2023/07/31/growing-summer-vegetables-in-hernando-county-yard-long-beans/
  36. https://extension.umd.edu/resource/growing-beans-home-garden
  37. https://edis.ifas.ufl.edu/publication/IG151
  38. https://www.mdpi.com/2311-7524/10/11/1167
  39. https://www.instagram.com/p/C9doIC5tt9Q/
  40. https://www.epicgardening.com/yardlong-bean/
  41. http://www.scienceandnature.org/GJBB/GJBB_Vol7(3)2018/GJBB-V7(3)2018-26.pdf
  42. https://news.ucr.edu/articles/2024/08/06/protecting-popular-beans-bad-bugs
  43. https://ipm.ucanr.edu/agriculture/dry-beans/bean-anthracnose/
  44. https://plantvillage.psu.edu/topics/bean/infos
  45. https://www.hmongfarmers.com/chinese-long-beans/
  46. https://food52.com/story/14265-the-long-and-the-short-of-yard-long-beans
  47. https://nesfp.nutrition.tufts.edu/world-peas-food-hub/world-peas-csa/produce-recipes/long-beans
  48. https://harvesttotable.com/long_beans/
  49. https://www.seriouseats.com/seriously-asian-the-yardlong-bean
  50. https://www.seriouseats.com/pickled-chinese-long-beans
  51. https://extension.umn.edu/vegetables/growing-beans
  52. https://asiasociety.org/blog/asia/stir-fried-long-beans-chinese-style
  53. https://delishably.com/world-cuisine/How-to-Make-Long-Beans-Stir-Fry
  54. https://www.eatyourbooks.com/library/recipes/1989112/spicy-long-bean-salad-yum
  55. https://whatscookingamerica.net/karencalanchini/chineselongbeans.htm
  56. https://www.thespec.com/life/food-and-drink/chinese-long-beans-a-symbol-for-a-long-life/article_8a189347-1cc1-5144-97c9-e715e384cb64.html
  57. https://pmc.ncbi.nlm.nih.gov/articles/PMC11422034/
  58. https://fdc.nal.usda.gov/fdc-app.html#/food-details/169222/nutrients
  59. https://www.nutrition-and-you.com/yard-long-beans.html
  60. https://www.mdpi.com/2073-4395/12/9/2195
  61. https://pmc.ncbi.nlm.nih.gov/articles/PMC11047418/
  62. https://pmc.ncbi.nlm.nih.gov/articles/PMC7503259/
  63. https://pmc.ncbi.nlm.nih.gov/articles/PMC11428976/
  64. https://www.sciencesocieties.org/publications/csa-news/2025/may/cowpea-a-nutrient-rich-pulse-for-extreme-environments
  65. https://foodstruct.com/food/yardlongbean-raw
  66. https://pmc.ncbi.nlm.nih.gov/articles/PMC3551098/
  67. https://www.anaphylaxis.org.uk/wp-content/uploads/2023/01/Legumes-2022-V5.pdf
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