| Orbexilum | |
|---|---|
 | |
| Orbexilum pedunculatum | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Tribe: | Psoraleeae |
| Genus: | Orbexilum Raf. (1832)[1] |
| Species | |
| Synonyms[1] | |
|
Rhytidomene Rydb. (1919) | |
Orbexilum, commonly called leather-root,[2] is a genus of flowering plants in the legume family (Fabaceae). They are native to North America, where they are found in the United States and Mexico, south to Chiapas.[3]
This genus can be distinguished from other genera in the Psoraleeae by its "thick glabrous pod walls that are distinctively rugose and by [a] calyx that is scarcely accrescent."[4]
Taxonomy
The genus was described by Constantine Samuel Rafinesque in 1832, with the type species O. latifolia, moved from Psoralea.[5] (O. latifolia is now considered a synonym of O. onobrychis.[6]) Rafinesque differentiated Orbexilum from Psoralea largely on the basis of features of the calyx.[7]
Species
Orbexilum comprises the following species:[1][4]
- Orbexilum chiapasanum B.L.Turner
- Orbexilum lupinellus (Michx.) Isely[note 1]
- †Orbexilum macrophyllum (Rowlee) Rydb. – bigleaf scurfpea[8]
- Orbexilum melanocarpum (Benth.) Rydb.
- Orbexilum oliganthum (Brandegee) B.L.Turner
- Orbexilum onobrychis (Nutt.) Rydb.
- Orbexilum pedunculatum (Mill.) Rydb.
- Orbexilum psoralioides (Walter) Vincent, syn. Orbexilum gracile (Torr. & A.Gray) B.L.Turner
- Orbexilum simplex (Nutt. ex Torr. & A.Gray) Rydb.
- †Orbexilum stipulatum (Torr. & A.Gray) Rydb.
- Orbexilum virgatum (Nutt.) Rydb.
Notes
- ↑ The specific epithet is sometimes incorrectly spelled lupinellum, but is a noun in apposition, so is correctly spelled lupinellus.[note 2]
References
- 1 2 3 "Orbexilum Raf.". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2021-06-14.
- ↑ USDA, NRCS (n.d.). "Orbexilum". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 25 July 2015.
- ↑ Alan Weakley (2015). "Flora of the Southern and Mid-Atlantic States".
- 1 2 Turner BL. (2008). "Revision of the genus Orbexilum (Fabaceae: Psoraleeae)" (PDF). Lundellia. 11: 1–7.
- ↑ "Orbexilum". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew; Harvard University Herbaria & Libraries; Australian National Botanic Gardens. Retrieved 2021-06-14.
- ↑ "Orbexilum latifolia". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 11 September 2023.
- ↑ Rafinesque, C.S. (1832). "107. Twenty new genera of plants from the Oregon mountains, etc". Atlantic Journal, and Friend of Knowledge. 1 (3): 144–146. Retrieved 2021-06-14.
- ↑ LeGrand, H; Sorrie, B (2021). "Account for Bigleaf Scurfpea". Vascular Plants of North Carolina. North Carolina Biodiversity Project and North Carolina State Parks. Retrieved May 26, 2021.
- "Orbexilum lupinellus". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew; Harvard University Herbaria & Libraries; Australian National Botanic Gardens. Retrieved 2021-06-14.
