Danicus Characteristics flowers born on more or less well developed peduncles inflorescence a short, dense, head-like raceme, about as long as wide flowers 16-18 mm long flowers and pods all erect flowers at least partly reddish, purplish, or bluish; not yellowish

 

Astragalus Characteristics keel not truncate, but not tipped with a point

 

Leguminosae Characteristics plants terrestrial both sepals and petals present usually 5 sepals, or wholly united petals distinct from each other, not united in a tube corolla with petals more or less united 5 petals, of which 2 are usually united along one edge calyx regular corolla irregular, pea-like stamens more numerous than the corolla lobes stamens usually separate or partly so, not in a column