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.

erect, terete, 15–200 cm, simple to paniculate-branched (especially in larger plants), glabrous proximally, strigillose distally, sometimes mixed glandular puberulent.

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.

subsessile or petiole 1–4 mm, blade linear to linear-lanceolate or narrowly elliptical, often folded along midrib, 1–5.5(–7) × 0.1–0.8 cm, usually shorter than internodes, base tapered or cuneate, margins remotely denticulate, 2–10 teeth per side, lateral veins obscure, 2–5 per side, apex acute or acuminate, surfaces subglabrous and sometimes glaucous to strigillose;

bracts very reduced, sometimes attached to pedicel.

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

erect, open panicles with filiform branches or simple racemes, glabrous or strigillose, often mixed glandular puberulent.

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.

usually erect;

buds 1–12 × 1–3.5 mm;

floral tube obconic to funnel-form, 1–16 × 0.8–2.9 mm, with ring of spreading hairs near mouth inside, in larger flowers, ring swollen;

sepals green to reddish green, 1–8.5 × 0.8–2.1 mm, apex acute, abaxial surface strigillose and glandular puberulent to subglabrous;

petals white to pink or deep rose-purple, 1.5–15(–20) × 1–7.5 mm, apical notch 0.5–6.5 mm;

filaments usually cream-white, rarely pink, those of longer stamens 1–9.5 mm, those of shorter ones 0.5–6.3 mm;

anthers cream, 0.5–4 × 0.3–2 mm;

ovary 2–16 mm, strigillose, often mixed glandular puberulent, to subglabrous;

style cream, 2–18 mm, stigma clavate to subcapitate, entire to deeply 4-lobed, 0.5–1.9 × 0.3–2.5 mm, surrounded by stamens or (in some larger flowers) exserted beyond anthers.

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

pedicel 5–35(–68) mm.

erect or ascending, 15–32 mm, surfaces strigillose and glandular puberulent or glabrous;

pedicel 1–17 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.

obovoid to broadly obovoid, with constriction 0.3–0.7 mm from micropylar end, 1.5–2.7 × 0.8–1.3 mm, chalazal collar inconspicuous, brown or gray, often flecked with darker spots, surface low papillose;

coma easily detached, white to dingy white, 5–10 mm.

= 36.

= 24.