Baptisia cinerea
Baptisia lanceolata
grayhairy wild indigo
gopher weed
blackening upon drying, petiolate;
stipules mostly deciduous, lanceolate, 10–30 mm;
petiole 5–14 mm;
leaflets 3, blades oval to broadly oblanceolate.
subsessile or petiolate;
stipules caducous, small;
petiole 0.1–12 mm mid stem;
leaflets 3, blades obovate to oblanceolate.
5–20-flowered, axillary, secund, bracteate, bracts deciduous.
1–5-flowered, terminal, bracteate.
4–8 mm.
2–10 mm.
21–29 mm;
calyx 6–8 mm, glabrous or puberulent;
corolla yellow, 20–28 mm.
20–27 m;
calyx 8–10 mm, pubescent;
corolla yellow, 19–25 mm.
ascending, ovoid, 20–30 × 6–10 mm, papery to ± woody.
ascending, suborbicular to lanceoloid, 10–25 × 10–12 mm, woody.
2–4.
10–40.
= 18.
Baptisia cinerea
Baptisia lanceolata
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.)
Varieties 2 (2 in the flora).
Occasional plants in regions of contact between varieties of Baptisia lanceolata may be difficult to identify. D. Isely (1981) recognized isolated populations from central Florida as belonging to var. elliptica; these appear to belong to var. lanceolata, although they may be relics of ancestral hybridization and/or gene flow between the two.
Baptisia lanceolata hybridizes with B. perfoliata.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Leaflet blades to 15 mm wide; petioles 0.1–2 mm mid stem; ne Florida, Georgia, South Carolina. | var. lanceolata |
1. Leaflet blades 16+ mm wide; petioles 4–12 mm mid stem; Alabama, westernmost Florida, Georgia. | var. elliptica |
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