Astragalus gracilis Nuttall. Common name: Slender Milkvetch. Phenology: Apr-Jul. Habitat: Calcareous soils, in prairies or juniper savannas. Distribution: North Dakota, Saskatchewan, and Montana south to sc. Oklahoma, Panhandle Texas, and c. New Mexico.
ID notes: In our region, this species is recognized by its slender stems and narrow elongating raceme. The only other Astragalus species in our region that shares the very slender aspect is A. michauxii, which only occurs east of the Mississippi River. The distinctive boat-shaped legumes also distinguish A. gracilis from all other species in our region.
Origin/Endemic status: Native
Synonymy ⓘ: = Can, FNA11.2, GrPl, K4, Tx, Isely (1998), Turner et al (2003a); > Astragalus gracilis Nuttall — F; > Astragalus parviflorus (Pursh) MacMill. — F. Basionym: Astragalus gracilis Nuttall 1818 "Urbasionym:" Dalea parviflora Pursh 1813
Links to other floras: = Astragalus gracilis - FNA11.2
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Heliophily ⓘ: 9
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Horticultural Information
No horticultural data found for this taxon.