Acmispon americanus

Acmispon americanus, known by the common names American bird's-foot trefoil[5] and Spanish clover, is a species of legume native to most habitats of California, the Western United States, Western Canada, and northern Mexico.

Acmispon americanus
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Fabales
Family:	Fabaceae
Subfamily:	Faboideae
Tribe:	Loteae
Genus:	Acmispon
Species:	A. americanus
Binomial name
Acmispon americanus (Nutt.) Rydb.[1]
Synonyms
Lotus purshianus Clem. & E.G. Clem.[2] Lotus unifoliolatus (Hook.) Benth.[3][4]

The plant is an upright hairy annual, growing to 25 cm. The flowers (to 6mm) are pale pink to cream.

Subspecies

Acmispon americanus is often discussed as comprising several varieties, including:

• Acmispon americanus var. americanus [6][7]

References

1. TJM2
2. JM93
3. Integrated Taxonomic Information System (ITIS) (https://www.itis.gov) 6.23.2013
4. USDA . accessed 8.2.2013
5. "Lotus unifoliolatus". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 23 June 2015.
6. CalFlora Database: Acmispon americanus var. americanus
7. Jepson eFlora: Acmispon americanus var. americanus

External links

• CalFlora Database: Acmispon americanus
• Jepson eFlora: Acmispon americanus — TJM2 (2012)
• Jepson Manual Treatment: Lotus purshianus — JM93 (1993)
• USDA Plants Profile for Lotus unifoliolatus (American bird's-foot trefoil)