Herbs caulescent, to 150 cm, mostly glandular throughout and pubescent. Stems 1, erect, much branched distally, leaves dispersed along stem, more so apically; pseudoscapes 0; cata­phylls 5–15 mm. Leaves palmately 3–5-foliolate; stip­ules tardily deciduous, linear to linear-lanceolate, 7–12 × 1–4 mm, sparsely strigose; petiole sometimes swollen but not jointed basally, 2–40 mm; petiolules 1.5–2 mm; leaflet blades narrowly elliptic, 1.3–4.5 × 0.3–1.4 cm, base obtuse to slightly cuneate, apex apiculate, surfaces abaxially tomentose, adaxially glabrous. Peduncles 1.4–2 cm, usually longer than subtending petiole, appressed-pubescent. Inflorescences persistent, globose-ovoid, compact; rachis 0.5–0.7 cm, crowded, nodes 2, (1–)3 flowers per node; bracts persistent, orbiculate, 7–14(–20) × 6–13 mm, apex cuspidate to caudate, short-pubescent. Pedicels 3.5–5 mm. Flowers 14–20 mm; calyx strongly gibbous-campanulate in fruit, 11–19 mm abaxially, 10–12 mm adaxially, glandular, pubescent; tube 4–5 mm; lobes linear-lanceolate, abaxial 10.5–12 × 2–3.5 mm, adaxial 2.5–3 × 0.8–1 mm; corolla lavender, banner oblanceolate, 13–16 × 6–7 mm with claw 4–5 mm, wings 12–14 × 2.5–3 mm with claw 4–5 mm, keel 8–10 × 2.5–3 mm with claw 3.5–6 mm; filaments 8–10 mm; anthers elliptic, 0.3–0.4 mm; ovary glabrous, pubes­cent on distal 1/6, style pubescent basally. Legumes ellipsoid, 7–8 × 4.5–5 mm, densely glandular, sparsely pubescent apically, beak 3–4 mm, subequal to calyx. Seed red-brown, oblong-reniform, 4 × 6 mm.

Phenology: Flowering summer.
Habitat: Open rocky fields, prairies.
Elevation: 200–500 m.

Distribution

• Generated Map
• Legacy Map

Okla., Tex.

Discussion

Pediomelum reverchonii is recognized by its large, persistent bracts and slender, branching habit. It is restricted to south-central Oklahoma and north-central Texas.

Selected References

None.

Lower Taxa

None.