Homalocephala (plant)
| Homalocephala | |
|---|---|
| Homalocephala polycephala | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Tribe: | Cacteae |
| Genus: | Homalocephala Britton & Rose[1] |
| Type species | |
| Homalocephala texensis | |
| Species | |
|
See text. | |
Homalocephala is a genus of plants native to Mexico and the United States.[1] In the past, all three species have been considered to be in the genus Echinocactus.[2]
Species
As of June 2025, Plants of the World Online accepts three species:
| Image | Scientific name | Common name | Distribution |
|---|---|---|---|
| Homalocephala parryi (Engelm.) Vargas & Bárcenas syn. Echinocactus parryi |
Devil's cushion | Mexico | |
| Homalocephala polycephala (Engelm. & J.M.Bigelow) Vargas & Bárcenas syn. Echinocactus polycephalus |
Cotton top cactus | S. California, S. Nevada, Arizona, Mexico | |
| Homalocephala texensis (Hopffer) Britton & Rose syn. Echinocactus texensis |
Horse crippler cactus | SW. Oklahoma to NE. Mexico |
References
- ^ a b "Homalocephala Britton & Rose | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2025-06-07.
- ^ Vargas-Luna, Mario Daniel; Hernández-Ledesma, Patricia; Majure, Lucas Charles; Puente-Martínez, Raúl; Macías, Héctor Manuel Hernández; Luna, Rolando Tenoch Bárcenas (2018-11-13). "Splitting Echinocactus: morphological and molecular evidence support the recognition of Homalocephala as a distinct genus in the Cacteae". PhytoKeys (111): 31–59. Bibcode:2018PhytK.111...31V. doi:10.3897/phytokeys.111.26856. ISSN 1314-2003. PMC 6246732. PMID 30483031.
- Innes C, Wall B (1995). Cacti, Succulents and Bromeliads. Cassell & The Royal Horticultural Society.