Flora of North America species comparison

erect, dichotomously branched, 5–50 cm, retrorsely to spreading- pubescent throughout.

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

sterile stems 2–10 cm.

stipules ovate-lanceolate, 2–6 mm, apex acuminate, entire;

blade linear to linear-oblanceolate or linear-oblong, 3–25 × 1–2.3 mm, herbaceous, apex ± acute, moderately antrorsely puberulent.

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.

5-merous, cylindric to narrowly lanceolate, with enlarged hypanthium and calyx cylindric to tapering distally, 2.3–3.5 mm, pubescent mostly proximal with hooked or usually straight hairs, sometimes with scattered straight hairs distally;

sepals flecked or solid red-brown, white distally, midrib obscure, linear-lanceolate, 1.5–2 mm, papery, margins white, 0.1–0.2 mm wide, papery, apex terminated by mucro, hood obscure, narrowly rounded, mucro short-conic, ca. 0.1 mm, glabrous;

staminodes filiform, widening proximally, 0.5–0.6 mm;

style 1, cleft in distal 1/10.

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.

terminal and lateral, 15–50+-flowered, often forming large, congested clusters 5–30 mm wide.

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

broadly ellipsoid to ± globose, 0.5–0.7 mm, smooth, glabrous.

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