Flora of North America species comparison

prostrate to ascending, branched especially distally, retrorsely to spreading-pubescent throughout (when pubescent); flowering stems 8–48 cm;

sterile stems 2–10 cm.

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

stipules ovate-lanceolate, 2–12 mm, apex acuminate, entire;

blade linear to spatulate-oblanceolate, 4–40 × 1–4 mm, leathery, apex obtuse to acute, moderately antrorsely pubescent.

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.

5-merous, narrowly ellipsoid, with slightly enlarged hypanthium and calyx tapering distally, 2.3–3.5 mm, glabrous to slightly puberulent proximally with straight to hooked hairs;

sepals red-brown, white or whitish distally, veins absent, narrowly oblong to lanceolate-oblong, 1.4–2 mm, papery, margins white, ca. 0.1 mm wide, papery, apex rounded, hood formed from slight incurving, awn or mucro absent;

staminodes narrowly oblong, 0.4 mm;

style 1, cleft in distal 1/10, 1.3–1.7 mm.

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.

terminal, 15–200+-flowered, branched, densely to loosely grouped to form subcorymbose clusters 5–50 mm wide.

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

ovoid to ellipsoid, 1–1.2 mm, rugulose, glabrous.

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