Steviopsis
| Steviopsis | |
|---|---|
 | |
| Steviopsis dryophila | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Subfamily: | Asteroideae |
| Tribe: | Eupatorieae |
| Genus: | Steviopsis R.M.King & H.Rob. |
| Type species | |
| Eupatorium adenospermum | |
Steviopsis is a genus of Mexican plants in the tribe Eupatorieae within the family Asteraceae.
Description
Members of Steviopsis are perennial herbs that have heads composed entirely of disk flowers, a pappus of capillary bristles, narrow corollas with spreading lobes, and glands on the cypselae (achenes). The base chromosome number is x=10, which distinguishes it in part from the morphologically similar Brickellia. The genus is endemic to Mexico.
Taxonomy
The genus was originally described by King and Robinson as part of the splitting of Eupatorium into monophyletic units. The distinctiveness and circumscription of the genus were recently assessed using molecular phylogenetic approaches
- Species
- Steviopsis amblyolepis (B.L.Rob.) R.M.King & H.Rob. - Guerrero, Morelos, Michoacán
- Steviopsis arsenei R.M.King & H.Rob. - Michoacán
- Steviopsis dryophila (B.L.Rob.) B.L.Turner - Jalisco, Nayarit, Zacatecas, Sinaloa
- Steviopsis nesomii B.L.Turner - Nuevo León
- Steviopsis rapunculoides (DC.) R.M.King & H.Rob. - Jalisco, Guanajuato, Nayarit, Morelos, Michoacán
- Steviopsis vigintiseta (DC.) R.M.King & H.Rob. - Oaxaca, Puebla, Morelos, México State
- formerly included
see Asanthus Brickelliastrum Dyscritogyne
- Steviopsis adenosperma - Dyscritogyne adenosperma
- Steviopsis dryophila - Dyscritogyne dryophila
- Steviopsis fendleri - Brickelliastrum fendleri
- Steviopsis squamulosa - Asanthus squamulosus
- Steviopsis thyrsiflora - Asanthus thyrsiflorus
- Steviopsis thyrsiflora var. solidaginifolia - Asanthus solidaginifolius
References
- 1 2 3 King, Robert Merrill & Robinson, Harold Ernest. 1971. Studies in the Eupatorieae (Asteraceae) LIX. A new genus, Steviopsis. Phytologia 22: 156-157
- ↑ D.J.N.Hind & H.E.Robinson. 2007. Tribe Eupatorieae In: The Families and Genera of Vascular Plants vol.VIII. (Joachim W.Kadereit & Charles Jeffrey, volume editors. Klaus Kubitzky, general editor). Springer-Verlag. Berlin, Heidelberg.
- ↑ Tropicos, Steviopsis R.M. King & H. Rob.
- ↑ Schilling, E. E., J. L. Panero, B. S. Crozier & P. Davila. 2013. Relationships of Asanthus (Asteraceae, Eupatorieae). Systematic Botany 38: 253-258.
- ↑ Turner, Billie Lee. 1988. Phytologia 64: 259-262
- 1 2 Flann, C (ed) 2009+ Global Compositae Checklist[link removed]
- ↑ Turner, B. L. 1997. The Comps of Mexico: A systematic account of the family Asteraceae, vol. 1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272
 | This Eupatorieae article is a stub. You can help Wikipedia by adding missing information. |