Tium atratum (S.Watson) Rydb.

, N. Amer. Fl. 24: 394 (1929). BHL
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External links to taxonomic opinions:
WFO POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:254842-2
Publication
North American Flora. New York Botanical Garden
Collation
24: 394
Family as entered in IPNI
Fabaceae

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Basionym
Astragalus atratus S.Watson, Botany [Fortieth Parallel] 69, t. 11 (1871).
Same citation as
Tium atratum Rydb., N. Amer. Fl. 24(7): 394 (1929).