Dudleya cymosa
Dudleya cymosa is a species complex of succulent plants known by the common name: canyon liveforever.[1][2] It is a loosely defined species with a diverse number of subspecies, many often varying highly in morphology, distribution, and habitat.[3]
| Dudleya cymosa | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Saxifragales |
| Family: | Crassulaceae |
| Genus: | Dudleya |
| Species: | D. cymosa |
| Binomial name | |
| Dudleya cymosa | |
| Synonyms | |
|
Echeveria cymosa | |
Description
It is a distinctive plant sending up erect red-orange stems from a gray-green basal rosette. The small yellowish-red thimble-shaped flowers top the stems in a cyme inflorescence. Some subspecies are considered threatened locally.
Subspecies
Recognized[4] Dudleya cymosa subspecies:
- Dudleya cymosa subsp. agourensis K.M. Nakai - (Agoura Hills dudleya)
- Dudleya cymosa subsp. crebrifolia K.M. Nakai & Verity - (San Gabriel River dudleya)
- Dudleya cymosa subsp. costatifolia Bartel & Shevock - (Pierpoint springs dudleya)
- Dudleya cymosa subsp. cymosa (Lem.) Britton & Rose - (Canyon liveforever)
- Dudleya cymosa subsp. marcescens Moran - (Marcescent dudleya)
- Dudleya cymosa. subsp. ovatifolia - (Santa Monica Mountains dudleya)
- Dudleya cymosa subsp. paniculata (Jeps.) K.M. Nakai - (Diablo range dudleya)
- Dudleya cymosa subsp. pumila (Rose) K.M. Nakai - (Low canyon dudleya)
The subspecies marcescens[5] and ovatifolia[6] are federally listed as threatened species of the United States.
Butterfly habitat
Dudleya cymosa is the larval host plant for the Sonoran blue butterfly, Philotes sonorensis (Lycaenidae)
Basal rosette, erect stems, and inflorescences
Notes
- New N. Amer. Crassul. 21. 1903 Sep
- Bull. New York Bot. Gard. 3:21. 1903 Nov
- McCabe, Stephen Ward (26 September 2019). "Succulent Poaching, Conservation,and the Mainland Dudleyas". Youtube. CNPS Santa Clara Valley Chapter.
- "Dudleya cymosa". Global Biodiversity Information Facility.
- USFWS. ssp. marcescens. Species Profile.
- USFWS. ssp. ovatifolia. Species Profile.
References
- Thomson, Paul H. (1993). Dudleya and Hasseanthus handbook. Bonsall, CA: Bonsall Publication. ISBN 978-0-9602066-5-0.
- C.Michael Hogan, ed. 2010. Dudleya cymosa. Encyclopedia of Life.
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