Pomaria austrotexana
Lundellia 1: 51, fig. 1. 1998.
Subshrubs, decumbent at base, 15–60 cm; from thick, woody root-crown. Mature stems reddish, ± rugose to striate, densely appressed-pubescent. Leaves 55–70 × 15–30 mm; stipules filiform, 3 × 3 mm, margins ± entire to pinnatifid, densely tomentose; pinnae 5–7; leaflets 6–10 per pinna, blades oblong, 3–6 × 1–2.5 mm, apex rounded, surfaces densely, evenly pilose, with numerous glandular-punctate trichomes abaxially, moderately to densely tomentose adaxially. Racemes 7–15-flowered, terminal, 7–12 cm. Flowers upright, almost bilabiate in outline, 12–20 × 6–10 mm; abaxial sepal 9 × 3 mm; lateral sepals 8 × 4 mm; abaxial sepal pilose and with short, curled trichomes on midveins and margins and mixed with evenly-sized black, glandular-punctate trichomes; banner yellow with dark red blotches, 8 × 3 mm, with small tuft of trichomes in fold of claw and very few glandular trichomes abaxially; lateral petals yellow, 8 × 4 mm, mostly glabrous. Legumes upright, oblong-lanceolate in outline, 20–35 × 10 mm, pilose and with few glandular-punctate trichomes and with scattered multicellular projections less than 0.5 mm, with white trichomes radiating apically, margins pubescent with short curled trichomes and with few multicellular projections to 0.5 mm. Seeds 2.
Phenology: Flowering spring.
Habitat: Deep sands.
Elevation: 0–200 m.
Distribution
Tex., Mexico (Tamaulipas).
Discussion
Pomaria austrotexana appears to be uncommon in southern Texas and adjacent Mexico.
Selected References
None.