Flora of North America species comparison

erect to ascending, much-branched, 10–35 cm, scabrous, puberulent to pubescent, sometimes glabrous with age.

prostrate to sprawling, much-branched, 8–15 cm, scabrous-puberulent to puberulent throughout.

stipules lanceolate, 5–15 mm, apex acuminate, entire;

blade linear, 7–25(–34) × 0.5–1 mm, leathery, apex obtuse to subacute or submucronate, pubescent to puberulent.

stipules lanceolate, 2–8 mm, apex acuminate, entire;

blade linear, 8–15(–23) × 0.5–1 mm, leathery, apex shortly cuspidate, puberulent.

5-merous, short-campanulate, with enlarged hypanthium and calyx widening somewhat distally, 1.8–2.8 mm, puberulent, glabrous to hirtellous distally;

sepals green to red-brown, veins absent, oblong, 1.3–1.8 mm, leathery to rigid, margins whitish to translucent, 0.05–0.1 mm wide, scarious, apex terminated by awn, broadly rounded, awn widely divergent, 0.4–0.8 mm, conic in proximal 1/2–2/3 with yellowish, scabrous spine;

staminodes filiform, 0.6–1 mm;

style 1, cleft in distal 1/3–1/6, 0.8–1.2 mm.

5-merous, ± ovate, with prominently enlarged hypanthium and calyx tapering only slightly distally, 2.3–3.5 mm, puberulent;

sepals green to purple-brown, midrib and lateral pair of veins ± obscure, oblong to lanceolate-oblong, 1.7–2 mm, leathery to rigid, margins whitish to translucent, 0.05–0.1 mm wide, scarious, apex terminated by awn, hood prominent, rounded-triangular, awn divergent, conic in proximal 1/2–2/3 with yellowish, scabrous spine 0.7–0.9 mm;

staminodes filiform, 0.5–0.8 mm;

style 1, cleft in distal 1/3–2/3, 0.8–1.4 mm.

terminal, 20–70-flowered, open, clusters 1–2 cm wide.

terminal, 3–7-flowered, branched, congested, in clusters 7–25 mm wide.

ellipsoid-ovoid, 0.8–1 mm, smooth, glabrous.

± ovoid, 0.8–0.9 mm, smooth, glabrous.

= 32.