Native Plants

Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

Enter a Plant Name:
Or you can choose a plant family:

Lotus unifoliolatus var. unifoliolatus

Lotus unifoliolatus (Hook.) Benth. var. unifoliolatus

American Bird's-foot Trefoil

Fabaceae (Pea family)

Synonym(s): Acmispon americanum, Hosackia americana, Lotus americanus, Lotus purshianus, Lotus purshianus var. glaber, Lotus sericeus

USDA Symbol: LOUNU

USDA Native Status: L48 (N), CAN (N)

From the Image Gallery

No images of this plant

Plant Characteristics

Duration: Annual
Habit: Herb
Leaf Arrangement: Alternate
Fruit Type: Legume
Size Notes: Stems prostrate to erect, up to about 2 feet long.

Bloom Information

Bloom Color: White , Pink
Bloom Time: Apr , May , Jun , Jul , Aug , Sep , Oct

Distribution

USA: AL , AR , AZ , CA , CT , IA , ID , IL , IN , KS , LA , MA , MN , MO , MT , ND , NE , NV , NY , OK , OR , SC , SD , TX , WA , WI , WY
Canada: BC , MB , SK

National Wetland Indicator Status

Region:	AGCP	AK	AW	CB	EMP	GP	HI	MW	NCNE	WMVE
Status:	FACU		UPL		FACU	FACU		FACU	FACU	FACU

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

Web Reference

Webref 62 - Burke Herbarium Image Collection (2020) University of Washington
Webref 30 - Calflora (2018) Calflora
Webref 36 - Jepson eFlora (2019) The Jepson Herbarium, University of California, Berkeley
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Lotus unifoliolatus var. unifoliolatus in USDA Plants
FNA: Find Lotus unifoliolatus var. unifoliolatus in the Flora of North America (if available)
Google: Search Google for Lotus unifoliolatus var. unifoliolatus

Metadata

Record Modified: 2023-07-18
Research By: Joseph A. Marcus

Go back