Flora of North America species comparison

prostrate, usually much-branched throughout, 5–50 cm, pubescent.

sprawling, branched from base, 3–10 cm, puberulent.

stipules ovate-lanceolate, 3–6 mm, apex narrowly acute to long-acuminate, entire;

blade elliptic to oblanceolate, 5–10 × 1.5–2.5 mm, ± fleshy, apex spinulous, entire, ± moderately antrorsely appressed-pubescent.

stipules lanceolate, 2.5–5 mm, apex narrowly acuminate, entire;

blade linear-oblong to linear-lanceolate, 2–10 × 0.7–1.5 mm, leathery, apex spinose, minutely puberulent.

5-merous, short-cylindric, with enlarged hypanthium and calyx cylindric to slightly tapering distally, 1.9–2.4 mm, glabrous, sepals puberulent distally;

sepals greenish, becoming reddish brown, midrib and lateral pair of veins often apparent, oblong to ovate, 1.2–1.3 mm, herbaceous, margins translucent, ca. 0.1 mm wide, scarious, apex terminated by awn, hood broadly rounded, awn erect, 0.5–0.7 mm, conic in proximal 1/6 with whitish, smooth spine;

staminodes absent;

styles 2, 0.2–0.3 mm.

5-merous, extended-urceolate, with enlarged hypanthial bulge and calyx cylindric to slightly tapering distally, 3.5-4 mm, moderately pubescent proximally, with minute, hooked hairs on hypanthial bulge, sparsely pubescent on calyx, densely so with hooked to coiled hairs on hood;

sepals green to red-purple, midrib apparent, oblong, 1.9–2.1 mm, herbaceous to leathery, margins white, 0.2–0.3 mm wide, papery, apex terminated by awn, hood triangular-rounded, awn erect, becoming widely divergent, white, ± lanceoloid from proximal constriction, 0.8–1.3 mm, slightly scarious, distinct spine absent;

staminodes narrowly subulate, 0.6–0.8 mm;

style 1, cleft in distal 7/8, 0.7–0.8 mm.

axillary, inconspicuous, 2–6-flowered, tightly congested.

terminal, 10–20-flowered, congested, in clusters 0.5–1.5 mm wide.

± globose to 4-angled, 1.2–1.3 mm, papillate distally.

unknown.