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Fabaceae
Acmispon

Acmispon americanus (Nuttall) Rydberg. Common name: Western Prairie-trefoil. Phenology: Mid May-Aug. Habitat: Prairies, glades, bluff-tops, roadsides; eastwards a waif, as near wool waste-combing mills, other disturbed areas. Distribution: MB and SK south to w. LA and c. TX; also BC south to s. CA, AZ, NM, and Mexico.

Glossary (beta!)

Origin/Endemic status: Native

Synonymy ⓘ: = Acmispon americanum — S, orthographic variant; = Acmispon americanus (Nutt.) Rydb. var. americanus — Can, FNA11.1, K4, Mo3, NY, POWO; = Lotus americanus (Nutt.) Bisch. — S13; = Lotus purshianus F.E. & E.G.Clem. var. purshianus — C, SE3, Isely (1981), Isely (1998); = Lotus unifoliolatus (Hook.) Benth. var. unifoliolatus — Ar, NE, NS; = n/a — RAB; < Lotus americanus (Nutt.) Bisch. — F; < Lotus purshianus F.E. & E.G.Clem. — G, GrPl, Tx; < Lotus unifoliolatus (Hook.) Benth. — Il, NcTx. Basionym: Trigonella americana Nutt. 1818

Links to other floras: = Acmispon americanus var. americanus - FNA11.1

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACU (name change)
  • Eastern Mountains and Piedmont: FACU (name change)
  • Great Plains: FACU (name change)
  • Midwest: FACU (name change)
  • Northcentral & Northeast: FACU (name change)

Heliophily ⓘ: 9

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image of plant© Aidan Campos source | Original Image ⭷
image of plant© Aidan Campos source | Original Image ⭷
image of plant© Aidan Campos source | Original Image ⭷

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Horticultural Information

No horticultural data found for this taxon.