Baptisia lactea
Baptisia simplicifolia
western white indigo
scare weed
petiolate;
stipules caducous, lanceolate, 2–8 mm;
petiole 5–15 mm;
leaflets 3, blades obovate.
sessile or subsessile;
stipules absent or caducous;
leaflet 1, blade ovate to broadly ovate.
8–20-flowered, terminal, stiffly erect, ebracteate.
15–25-flowered, terminal, bracteate, bracts persistent.
3–10 mm.
3–4 mm.
18–25 mm;
calyx 7–8 mm, glabrous;
corolla white, 16–23 mm.
14–17 mm;
calyx 5–6 mm, glabrous;
corolla pale yellow, 12–15 mm.
black in age, ascending to spreading-pendent, plump, ellipsoid-cylindric, 23–50 × 10–30 mm, smooth.
ascending, lanceoloid, 10–12 × 6–8 mm, beaks attenuate, woody.
20–30.
2–6.
= 18.
Baptisia lactea
Baptisia simplicifolia
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.)
Baptisia simplicifolia is known from the eastern region of the Florida panhandle.
(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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