Allium howellii
| Allium howellii | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Amaryllidaceae |
| Subfamily: | Allioideae |
| Tribe: | Allieae |
| Genus: | Allium |
| Species: | A. howellii |
| Binomial name | |
| Allium howellii Eastw. | |
Allium howellii is a North American species of wild onion known by the common name Howell's onion. It is endemic to California, where it grows in the granite and serpentine soils of several of the local mountain ranges, hills, and valleys from San Joaquin County to San Bernardino County.[1][2][3][4]
Allium howellii is a tall onion plant, producing a stem which may exceed half a meter in height from a reddish-brown bulb one to two centimeters long. There is a single cylindrical leaf about as long as the stem. The inflorescence holds up to 100 dark-veined lavender to white flowers, each under a centimeter long.[5][6][7]
- Allium howellii var. clokeyi Ownbey & Aase ex Traub[9] - San Bernardino, Los Angeles, Ventura, Santa Barbara Counties
- Allium howellii var. howellii - Merced, Fresno, Kern, San Luis Obispo Counties
- Allium howellii var. sanbenitense (Traub) Ownbey & Aase [10] - San Benito County
References
- ↑ Eastwood, Alice 1938. New Species in Liliaceae. Leaflets of Western Botany 2(7): 109
- ↑ Tropicos, Allium howellii Eastw.
- 1 2 Calflora Consortium of California Herbaria Taxon Report 199 , Allium howellii Eastw., Howell's onion
- ↑ Biota of North America 2013 county distribution map
- ↑ Flora of North America Allium howellii
- ↑ Jepson Manual Treatment
- ↑ USDA Plants Profile
- ↑ Kew World Checklist of Selected Plant Families
- ↑ Traub, Hamilton Paul. 1972. Plant Life 28: 63–64
- ↑ Traub, Hamilton Paul, & Aase, Hannah Caroline. 1959. in Munz, Philip Alexander & Keck, David Daniels. California Flora page 1376
External links
- Calflora Database: Allium howellii (Howell's onion)
- Jepson eFlora (TJM2): Allium howellii
- UC Photos gallery of Allium howellii
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