Baptisia cinerea
Baptisia hirsuta
grayhairy wild indigo
blackening upon drying, petiolate;
stipules mostly deciduous, lanceolate, 10–30 mm;
petiole 5–14 mm;
leaflets 3, blades oval to broadly oblanceolate.
petiolate;
stipules persistent, elliptic to lanceolate, 10–20 mm;
petiole 1–8 mm;
leaflets 3, blades oblanceolate to obovate, surfaces hirsute.
5–20-flowered, axillary, secund, bracteate, bracts deciduous.
1–5-flowered, terminal, bracteate.
4–8 mm.
20–40 mm, bracteolate.
21–29 mm;
calyx 6–8 mm, glabrous or puberulent;
corolla yellow, 20–28 mm.
10–12 mm;
calyx 8–10 mm, lobes longer than tube, pubescent;
corolla yellow, 9–11 mm.
ascending, ovoid, 20–30 × 6–10 mm, papery to ± woody.
ascending, broadly ovoid, 8–15 × 8–10 mm, ± woody.
2–4.
2–4.
Baptisia cinerea
Baptisia hirsuta
Baptisia cinerea closely resembles B. bracteata; the floral bracts in B. cinerea are deciduous (versus persistent in B. bracteata), pedicels are shorter (4–8 versus 10–18 mm), legumes are smaller (2–3 versus 3–4 cm) with appressed (versus spreading) hairs, and leaflets are larger and readily blacken upon drying.
Baptisia cinerea and B. bracteata are essentially allopatric. Hybrids between B. cinerea and other species of Baptisia have not been reported; occasional hybrids between B. cinerea and others (for example, B. lactea) would not be surprising.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Baptisia hirsuta is known from the western Florida panhandle; within its range, it can be locally abundant and can invade secondary sites (D. Isely 1998). It differs from B. calycosa by its geography and vestiture. M. M. Larisey (1940) maintained B. hirsuta; Isely (1981, 1998) treated it as a variety of B. calycosa. M. G. Mendenhall (1994), using DNA data, treated these two taxa as species, noting that they formed a tight clade with B. lecontei.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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