Flora of North America species comparison

many, ascending, often sigmoidally bent, nodding distally, later erect, clumped or mat-forming, terete, 3–20(–25) cm, simple, subglabrous, sometimes with faint raised strigillose lines decurrent from margins of petioles, rarely mixed strigillose and sparsely glandular puberulent distally.

several to many, ascending or erect, terete, loosely clumped, 40–100 cm, usually well-branched apically, ± glabrous and glaucous proximal to inflorescence, without distinct raised lines, sparsely mixed strigillose and glandular pubescent proximally.

opposite and crowded proximal to inflorescence, alternate distally, petioles 1–6 mm, rarely subsessile distally;

blade spatulate to oblong proximally, elliptic to narrowly lanceolate or sublinear distally, (0.5–)0.8–2.5 × 0.3–1 cm, base attenuate to cuneate, margins subentire proximally, sparsely denticulate distally with 2–5 low teeth per side, veins obscure, 2–4 per side, apex obtuse or rounded proximally to subacute distally, surfaces subglabrous;

bracts reduced, usually much narrower.

opposite proximal to inflorescence, alternate distally, petiole broad, 1–3 mm;

blade narrowly lanceolate to narrowly ovate, 3–9 × 0.7–2.5 cm, base rounded to cuneate, margins finely serrulate, 20–40 teeth per side, veins reddish green, conspicuous, 6–10 per side, apex acute, surfaces glabrous and often glaucous, crowded proximally;

bracts much reduced and narrower.

nodding in bud, later suberect, few-flowered racemes, subglabrous to sparsely strigillose and/or glandular puberulent.

erect racemes or open panicles, often branched, glandular puberulent, sometimes mixed strigillose.

suberect;

buds 2–5 × 1–2 mm;

pedicel 1–6(–15) mm;

floral tube 0.6–1.2 × 0.8–1.8 mm, slightly raised subglabrous ring at mouth inside;

sepals green to reddish purple, 1.5–5 × 0.6–1.5 mm, abaxial surface subglabrous to sparsely glandular;

petals usually pink to rose-purple, rarely white, narrowly obcordate, (1.7–)2.5–6.5(–8) × 1.6–3.5 mm, apical notch 0.5–1.2 mm;

filaments cream to light pink, those of longer stamens 1.4–3.2 mm, those of shorter ones 0.7–2 mm;

anthers 0.3–0.6 × 0.2–0.4 mm;

ovary often reddish purple, 6–20 mm, subglabrous or sparsely strigillose and glandular puberulent;

style white, 1.2–2.5 mm, glabrous, stigma broadly clavate to subcapitate, entire, 0.9–1.5 × 0.4–0.7 mm, surrounded by longer anthers.

erect;

buds 5–8 × 2–3.5 mm, often with stigma exserted;

pedicel 2–4 mm;

floral tube 2–3 × 1.8–3 mm, with ring of spreading hairs near base of tube inside;

sepals often flushed red, 6–10 × 2.1–2.8 mm, abaxial surface mixed strigillose and glandular puberulent;

petals dark pink to rose-purple, (6–)10–15 × 4.5–6 mm, apical notch 2.6–3 mm;

filaments cream or light pink, those of longer stamens 6–8 mm, those of shorter ones 3.5–4.5 mm;

anthers cream or yellow, 1–1.2 × 0.5–0.6 mm;

ovary 20–25 mm, densely glandular puberulent and mixed strigillose;

style cream or yellow, 9–13 mm, stigma broadly and sometimes irregularly 4-lobed, 1–1.5 × 2.1–2.9 mm, exserted beyond anthers.

slender, often reddish purple, 17–40(–55) mm, surfaces subglabrous or with scattered hairs;

pedicel 5–35(–68) mm.

25–45 mm, surfaces mixed sparsely glandular puberulent and strigillose, often with reduced fertile seed set;

pedicel 3–6 mm.

narrowly obovoid, 0.7–1.4 × 0.3–0.5 mm, inconspicuous chalazal collar 0.1–0.2 mm wide, light brown, surface reticulate (smooth);

coma persistent, dull white, 2–4 mm.

narrowly obovoid, 0.9–1.3 × 0.4–0.5 mm, chalazal collar 0.1–0.15 × 0.2–0.25 mm, gray-brown, surface with conspicuous parallel longitudinal ridges of laterally flattened papillae;

coma readily detached, white, 4–6 mm.

= 36.

= 36.