Hoffmannseggia drummondii
Fl. N. Amer. 1: 393. 1840. (as Hoffmanseggia)
Shrubs, low, spreading, to 30 cm; from woody taproot. Leaves 10–23 × 10–15 mm; stipules ovate, 1 × 1 mm; pinnae 3, terminal shorter than laterals; leaflets 7–13 per pinna, blades oblong, 3–3.3 × 0.5–1.6 mm, surfaces glabrous, sometimes with very few multicellular, glandular trichomes abaxially. Racemes 3–8-flowered, terminal or axillary, 2–4 cm; rachis and pedicels sparsely stipitate-glandular. Flowers turbinate in outline, 5–8 × 3–8 mm; calyx persistent in fruit, distinct portion 0.5–2 × 4.5 mm, pubescent and sparsely stipitate-glandular; banner yellow with red markings, 3–7 × 2.5–5 mm, with few multicellular, glandular trichomes abaxially, a few trichomes at base of claw adaxially; lateral petals yellow, 3–7 × 2–3 mm, with few multicellular, glandular trichomes at base abaxially. Legumes lunate in outline, 16–20 × 6–8 mm, dehiscent or indehiscent, margins glabrous, apex mucronate; valves thin, flaring outward when dehiscent, glabrous or glabrate. Seeds 1 or 2. 2n = 24.
Phenology: Flowering spring (year-round).
Habitat: Sandy-clay soils.
Elevation: 0–700 m.
Distribution
Tex., Mexico (Tamaulipas).
Discussion
In Texas, Hoffmannseggia drummondii is known from the south-central part of the state.
Selected References
None.