Flora of North America species comparison

strict, erect, sometimes reddish green, terete, 3.5–40 cm, simple or freely branched, subglabrous proximally to strigillose and glandular puberulent distally.

erect, simple or loosely clustered, terete, 15–95 cm, often well branched distally, densely villous throughout, sometimes mixed glandular puberulent distally, decurrent lines absent.

alternate distally, not fasciculate, petiole 0–2 mm, blade subspatulate proximally to lanceolate, oblanceolate, or narrowly elliptical distally, not folded along midrib, 0.9–2.5 × 0.2–0.6 cm, shorter than internodes, base tapered, margins entire or scarcely denticulate, 1–4 teeth per side, lateral veins obscure, apex subacute or often blunt proximally, surfaces subglabrous or with scattered hairs along margins;

bracts much reduced, sometimes attached to pedicel.

opposite proximally, alternate and often fasciculate distally, subsessile;

blade oblong-lanceolate to sublinear, 2–4.5 × 0.3–0.9 cm, ± exceeding internodes, base cuneate, margins entire or denticulate, 3–6 inconspicuous teeth per side, sometimes revolute, veins apparent on abaxial side, 3–5 per side, apex acute, surfaces villous, especially distally;

bracts somewhat reduced.

erect racemes or open panicles, relatively loose and uncrowded, branches thin, mixed strigillose and glandular puberulent.

erect racemes, branched or not, densely villous, sometimes mixed glandular puberulent.

erect or, sometimes, nodding in bud;

buds broadly ovoid, 1.2–2.5 × 1–1.5 mm;

floral tube 1.1–1.5 × 1–1.4 mm, usually with ring of spreading hairs at mouth inside;

sepals 0.5–2.5 × 0.4–1.3 mm, apex acute, abaxial surface strigillose, sometimes mixed glandular puberulent;

petals white to pink, 2–5 × 1.5–3 mm, apical notch 0.2–1.9 mm;

filaments white, those of longer stamens 0.5–3 mm, those of shorter ones 0.3–2 mm;

anthers 0.6–1 × 0.5–0.8 mm;

ovary 4–9 mm, mixed strigillose and glandular puberulent;

style light pink, 1–3.5 mm, stigma subclavate to obscurely 4-lobed, 0.4–0.6 × 0.4–0.5 mm, surrounded by longer anthers.

erect;

buds 2.5–5 × 1.5–1.5 mm;

pedicel 3–8 mm;

floral tube 1–1.8 ×1–2 mm, ring of spreading hairs at mouth inside;

sepals 2–4.5 × 1–1.3 mm, abaxial surface villous and glandular puberulent;

petals light to dark pink, obcordate, 4–6 × 2–3 mm, apical notch 1–1.5 mm;

filaments pink, those of longer stamens 2–3.5 mm, those of shorter ones 1–2 mm;

anthers cream, 0.5–0.8 × 0.4–0.6 mm;

ovary 12–20 mm, densely villous, often mixed glandular puberulent;

style cream, 2–3.5 mm, stigma narrowly clavate, entire, 1–1.6 × 0.5–1 mm, surrounded by anthers.

9–28 mm, surfaces strigillose and glandular puberulent;

pedicel 3–10 mm.

35–68 mm, short-beaked, surfaces densely villous, sometimes mixed glandular puberulent;

pedicel 5–15 mm.

obovoid, without constriction, 0.9–1.2 × 0.4–0.6 mm, low chalazal collar 0.1–0.2 mm wide, brown, surface reticulate;

coma easily detached, white, 2.5–3 mm.

narrowly fusiform to narrowly obovoid, 1.5–2 × 0.5–0.6 mm, chalazal collar inconspicuous, 0.1 mm, surface low papillose;

coma persistent, dingy white, 6–8 mm.

= 26.

= 36.