Monographs Details: Baptisia bracteata var. bracteata
Authority: Isely, Duane. 1981. Leguminosae of the United States. III. Subfamily Papilionoideae: tribes Sophoreae, Podalyrieae, Loteae. Mem. New York Bot. Gard. 25 (3): 1-264.
Description:Distribution and Ecology - W North Carolina, n Georgia to ne Alabama. Piedmont or above; open or disturbed, deciduous or pine woodlands, wire grass slopes, sandhills, roadsides; various soil types, usually in dry, rocky or sandy soils, less frequently of bottoms or along streams. March-May.
Discussion:Podalvria bracteata Muhl. (1813) nom. nud.;
B. bracteata Muhl. ex Ell. (1817);
Lasinia bracteata (Ell.) Raf. (1837).
B. saligna Greene (1910).
Baptisia bracteata var bracteata, the eastern analogue of vars glabrescens-laevicaulis of the central states, is easily distinguished from sympatric species by its usually large persistent stipules and bracts, and commonly secund racemes. It has been regarded as specifically distinct from western B. leucophaea (B. bracteata var glabrescens herein) by authors since Small (1903). I have reduced it to a variety because the chemical data (Brehm and Alston, 1964) does not support specific status and because the only reasonably dependable morphological character is petiole length. Without knowledge of origin, one cannot surely distinguish some eastern plants from the western varieties. The characters enumerated by Larisey (1940a, p. 125), leaflet size, pedicel length, and pubescence and striation of pods, are not valid or represent only modes. The common phenotypes, however, are not identical. Var bracteata usually has inconspicuously villous stems, and the mature leaves tend to be glabrate beneath except for some permanent pubescence along the midrib. Var glabrescens ranges from strongly and conspicuously villous to glabrous, and var laevicaulis is glabrate. The leaflets of var bracteata, 4-9.5 cm, 1.5-4.5 r, average the larger.
Baptisia saligna Greene, said to differ from B. leucophaea in lacking the conspicuous pubescence, was seemingly described without knowledge of B. bracteata.
Hybridization of Baptisia bracteata var bracteata with other species is little documented, but a few specimens that are probably hybrids are listed and discussed in alphabetic sequence. Others, with reduced stipules and bracts and/or few-flowered racemes that conceivably might be backcrosses of hybrids are retained with var bracteata because the evidence otherwise is inconclusive.
Distribution:United States of America North America