Herbs, annual, 1.5–4 dm, pubescent, hairs appressed or ascending. Cotyledons usually persistent, petiolate. Stems ascending or erect, branched. Leaves cauline, often crowded near base; petiole 1–6 cm; leaf­lets 5 or 6, blades 10–25 × 4–15 mm, adaxial surface gla­brate. Peduncles 3–8 cm; bracts deciduous, 2.5–3 mm. Racemes 6–12 cm; flowers crowded or spaced, spirally arranged, crowded on young growth. Pedicels 3–7 mm. Flowers 9–12 mm; calyx 5–6 mm, abaxial lobe 3-lobed, 3–4 mm, adaxial lobe cleft, 2–2.5 mm, hairs becoming yellowish gray or brown on dried material; corolla pale blue-violet, banner spot white, keel glabrous, wings inflated. Legumes 2.5–3.5 cm, yellowish gray- or brown-villous. Seeds 4 or 5. 2n = 36.

Phenology: Flowering spring.
Habitat: Sandy soils, roadsides, open woodlands, coastal plains.
Elevation: 0–300 m.

Distribution

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Tex., Mexico (Coahuila, Nuevo Léon).

Discussion

Lupinus subcarnosus is abundant and conspicuous in the coastal plain of southeastern Texas and extends into northern Mexico.

Selected References

None.

Lower Taxa

None.