Baptisia lactea
Baptisia alba
western white indigo
eastern white indigo, white false indigo, white wild indigo
petiolate;
stipules caducous, lanceolate, 2–8 mm;
petiole 5–15 mm;
leaflets 3, blades obovate.
petiolate;
stipules deciduous, linear-lanceolate, 3–8 mm;
petiole 5–20 mm;
leaflets 3, blades obovate to elliptic-lanceolate.
8–20-flowered, terminal, stiffly erect, ebracteate.
8–20-flowered, terminal, bracteate.
3–10 mm.
6–10 mm.
18–25 mm;
calyx 7–8 mm, glabrous;
corolla white, 16–23 mm.
14–18 mm;
calyx 4.5–6.5 mm, glabrous;
corolla white, 12–16 mm.
black in age, ascending to spreading-pendent, plump, ellipsoid-cylindric, 23–50 × 10–30 mm, smooth.
ascending, ± inflated, cylindric to oblong-lanceoloid, 20–30 × 7–10 mm, brittle.
20–30.
20–30.
Baptisia lactea
Baptisia alba
Varieties 2 (2 in the flora).
Baptisia lactea forms hybrids with B. lanceolata, B. nuttalliana, B. sphaerocarpa (B. × sulphurea Engelmann), and B. tinctoria (B. × deamii Larisey).
Peripheral intergradation between var. lactea and var. pendula occurs (hence their treatment as varieties); they are not known to co-occur at present.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
D. Isely (1981) accepted Baptisia alba as containing B. albescens, as did R. L. Wilbur (1963c) and B. L. Turner (2006c); later, Isely (1998) recognized B. alba with two varieties and including B. lactea and B. albescens. M. Woods and A. R. Diamond (2014) accepted both B. alba and B. albescens. The taxonomy and nomenclature of these taxa were discussed in more detail by Turner.
Baptisia alba forms hybrids with B. cinerea, B. lanceolata, B. perfoliata (B. × fulva Larisey), and B. tinctoria (B. × pinetorum Larisey [= B. × serenae M. A. Curtis]).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Legumes 10–15 mm wide; mature stipes about as long as calyces; c United States. | var. lactea |
1. Legumes 15–30 mm wide; mature stipes much longer than calyces; se United States. | var. pendula |
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iNaturalist
USDA Plants Database
