Baptisia hirsuta
Fl. S.E. U.S., 598, 1331. 1903.
Herbs to 0.5 m, pubescent. Leaves petiolate; stipules persistent, elliptic to lanceolate, 10–20 mm; petiole 1–8 mm; leaflets 3, blades oblanceolate to obovate, surfaces hirsute. Racemes 1–5-flowered, terminal, bracteate. Pedicels 20–40 mm, bracteolate. Flowers 10–12 mm; calyx 8–10 mm, lobes longer than tube, pubescent; corolla yellow, 9–11 mm. Legumes ascending, broadly ovoid, 8–15 × 8–10 mm, ± woody. Seeds 2–4.
Phenology: Flowering Apr–May.
Habitat: Pine and pine-oak woodlands, sandy soils.
Elevation: 0–10 m.
Discussion
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.
Selected References
None.