Irenodendron

Irenodendron
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Malpighiales
Family:	Salicaceae
Subfamily:	Samydoideae
Genus:	Irenodendron M.H.Alford & Dement
Type species
Irenodendron cupulatum (Spruce ex Benth.) M.H.Alford & Dement
Species
3; see text

Irenodendron is a genus of flowering plants in the family Salicaceae native to northern South America.^[1]

These species were previously treated as a section of the genus Laetia in the family Flacourtiaceae,^[2] but the genus Laetia and its relatives were moved to the Salicaceae based on analyses of DNA data.^[3] Irenodendron was later hypothesized to be more closely related to the genera Ryania, Trichostephanus, and Piparea due to the presence of an apically divided style, and wood with dark heartwood and large rays; it differs from those genera in having cup-shaped bracts under the flowers and in lacking staminodes.^[1]

1. ^ ^{a b} Alford, Mac; Dement, Angela (2015). "Irenodendron, a new genus of Samydaceae from South America". Journal of the Botanical Research Institute of Texas. 9 (2): 331–334.
2. ^ Lemke, David (1988). "A synopsis of Flacourtiaceae". Aliso. 12: 29–43. doi:10.5642/aliso.19881201.05.
3. ^ Chase, Mark W.; Sue Zmarzty; M. Dolores Lledó; Kenneth J. Wurdack; Susan M. Swensen; Michael F. Fay (2002). "When in doubt, put it in Flacourtiaceae: a molecular phylogenetic analysis based on plastid rbcL DNA sequences". Kew Bulletin. 57 (1): 141–181. Bibcode:2002KewBu..57..141C. doi:10.2307/4110825. JSTOR 4110825.
4. ^ "Irenodendron M.H.Alford & Dement | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2025-01-21.

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