Flora of North America species comparison

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

erect to ascending, much-branched distally, 5–20 cm, finely pubescent to 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, 3–8 mm, apex acuminate, entire;

blade linear, 5–20 × 0.3–1 mm, leathery, apex minutely cuspidate, glabrous.

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, ± short-campanulate, with enlarged hypanthium and calyx widening distally, 2.4–3.2 mm, moderately pubescent proximately with antrorsely appressed to spreading hairs;

sepals green to tan, midrib and lateral pair of veins absent to evident, oblong, 1.2–1.3 mm, leathery to rigid, margins whitish to translucent, 0.05–0.1 mm wide, scarious, apex terminated by awn, hood ± obscure, narrowly rounded, awn widely divergent, 0.6–1.3 mm, broadly conic in proximal 1/3 with white to yellowish, scabrous spine;

staminodes subulate, 0.6–0.7 mm;

style 1, cleft in distal 1/2, 0.4–0.6 mm.

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

terminal and lateral, 5–20+-flowered, dichasial and rather diffuse, forming clusters 3–15 mm wide.

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

ovoid-oblong, 1 mm, smooth, glabrous.

= 64.