Flora of North America species comparison

erect to straggling, branched or not, 4-angled, 3–32 cm, glabrous or softly pubescent, angles not minutely papillate-scabrid.

erect, branched, square, 10–40 cm, with alternating lines of soft, spreading, flexuous, mainly eglandular hairs.

sessile;

blade green, frequently glaucous, 1–3-veined, midrib prominent, lanceolate to linear-lanceolate, widest at base, 0.4–2.6(–4) cm × 1–4 mm, strongly coriaceous or not, base round, margins entire, convex, glabrous or ciliate, apex acute to acuminate, not spinescent, shiny, smooth, glabrous or sparingly villous, base usually glabrous, rarely with few cilia.

petiolate (proximal) or subsessile (distal);

blade elliptic, broadly lanceolate to ovate, 1–5 cm × 5–16 mm, base cuneate, margins entire, apex acute, glabrous, sparsely pubescent adaxially on midrib.

with flowers solitary, or terminal, 3–30-flowered (rarely more) cymes;

bracts lanceolate, 2–10 mm, herbaceous with scarious margins, or scarious throughout, glabrous or ciliate.

terminal, 3–7-flowered, cymes dichotomously branched;

bracts foliaceous, lanceolate, 5–30 mm, soft, margins entire, distal ones ciliate on margins and adaxial vein.

ascending to erect, straight, 5–30 mm, glabrous or softly pubescent.

erect, 5–45 mm, softly pubescent.

5–10 mm diam.;

sepals 5, 3-veined, midrib prominent, lanceolate to ovate-lanceolate, 3.5–5 mm, margins convex, narrow, scarious, sometimes ciliate, apex acute, glabrous or pubescent;

petals 5, 3–8 mm, 1–1.5 times as long as sepals;

stamens 5–10;

styles 3(–6), ascending, curled at tip, ca. 1.5 mm.

10–16 mm diam.;

sepals 5, obscurely veined, narrowly triangular, (5–)7–10(–12) mm, margins narrow, membranous, apex acuminate, glabrous or with shortly ciliate margins;

petals 5, equaling to slightly shorter than sepals;

stamens 10;

styles 3, ascending, ca. 2.5 mm.

blackish purple or straw colored, ovoid to ovoid-lanceoloid, 4–6 mm, 1.5–2 times as long as sepals, apex broadly acute, opening by 6 valves;

carpophore absent.

straw colored to pale brown, broadly ovoid, ca. 5 mm, shorter than sepals, apex obtuse, opening by 3 valves;

carpophore absent.

brown, reniform to globose, 0.6–0.9 mm diam., shallowly tuberculate to smooth.

brown, broadly reniform, ca. 2 mm diam., coarsely sulcate-papillate.

= 52–104, (107).

= 60.