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Fabaceae
Astragalus

not marked as a favorite taxon Astragalus pleianthus (Shinners) Isely. Phenology: Mar-May. Habitat: Blackland prairies, woodlands. Distribution: E. and c. Texas.

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Origin/Endemic status: Native

Taxonomy Comments: This species is part of the A. nuttallianus “complex” and is often treated as a variety of that species (e.g., Barneby 1964; Correll & Johnston 1970; Diggs et al. 1999; Welsh 2023b). Isely (1998), however, considered it a separate species indicating that “though sympatric with several of its congeners, it seemingly does not blend with any of them.” Welsh (2023b) acknowledged that “justification exists for elevating this taxon to species.” See further discussion under A. nuttallianus.

Synonymy ⓘ: = K4, Isely (1998), Turner et al (2003a); Astragalus austrinus (Small) E.D.Schulz var. pleianthus Shinners; = Astragalus nuttallianus DC. var. pleianthus (Shinners) Barneby — FNA11.2, NcTx. Basionym: Astragalus austrinus (Small) E.D.Schulz var. pleianthus Shinners 1957

Links to other floras: = Astragalus nuttallianus var. pleianthus - FNA11.2

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Heliophily ⓘ: 9

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