Flora of North America species comparison

erect, simple to loosely clustered, terete, 15–95 cm, simple to well branched, densely strigillose, often mixed glandular puberulent on inflorescence, rarely with faint strigillose lines decurrent from margins of petioles.

erect or ascending, often clumped, often flushed red, terete, 8–30 cm, simple or branched, glabrous proximal to inflorescence except for elevated strigillose lines decurrent from margins of petiole, strigillose throughout distally.

opposite proximally, usually alternate, rarely fasciculate distally, subsessile;

blade linear to very narrowly elliptic or sublanceolate, 2–7.5 × 0.1–0.7 cm, usually longer than internodes, base rounded to subcuneate, margins subentire, 4–7 inconspicuous teeth per side, sometimes revolute, lateral veins inconspicuous, apex obtuse proximally to acute distally, both surfaces densely strigillose, increasing distally;

bracts not much reduced.

opposite proximal to inflorescence, alternate distally, petiole broad, 3–5 mm proximally to subsessile distally;

blade lanceolate or elliptic to narrowly lanceolate distally, 0.8–4 × 0.4–1.3 cm, base attenuate to cuneate, margins subentire to denticulate distally, 5–9 teeth per side, veins 3 or 4 per side, apex obtuse to distally acute, surfaces glabrous with sparsely strigillose margins and abaxial midrib;

bracts reduced and narrower.

erect racemes, densely strigillose, often mixed sparsely glandular puberulent.

nodding to suberect, racemes, strigillose.

erect;

buds 3–5 × 1.5–2.5 mm;

pedicel 5–12 mm;

floral tube 0.8–1.5 × 1.2–1.8 mm, ring of spreading hairs at mouth inside;

sepals 2.5–4.5 × 0.9–1.3 mm, abaxial surface strigillose;

petals obcordate, white to light pink, 3.5–7 × 1.6–4 mm, apical notch 1–1.8 mm;

filaments white or cream, those of longer stamens 0.8–3.5 mm, those of shorter ones 0.6–2.5 mm;

anthers cream, 0.5–0.9 × 0.4–0.6 mm;

ovary 12–18 mm, densely strigillose, sometimes mixed glandular puberulent;

style cream, 2–3.8 mm, stigma narrowly clavate, entire, 1–1.8 × 0.5–1.2 mm, usually surrounded by, rarely exserted beyond, anthers.

erect;

buds 2–4 × 1.5–2.5 mm;

pedicel 7–12 mm;

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

sepals green, narrowly lanceolate, 3–4 × 0.8–1.2 mm;

petals white fading to pink, 4–6.5 × 2.3–4 mm, apical notch 0.8–1.6 mm;

filaments white, those of longer stamens 2.2–3 mm, those of shorter ones 1.2–1.6 mm;

anthers 0.4–0.8 × 0.4–0.6 mm;

ovary 12–18 mm, densely strigillose;

style white, 3.2–4 mm, stigma cream, broadly clavate, 0.6–1.5 × 0.6–1.2 mm, surrounded by at least longer anthers.

straight, narrowly cylindrical, 35–80 mm, surfaces densely strigillose;

pedicel 10–35 mm.

often reddish green, 25–55 mm, thin, surfaces sparsely strigillose;

pedicel 15–38 mm.

narrowly fusiform to narrowly obovoid, 1.5–2.2 ×0.5–0.7 mm, chalazal collar 0.1–0.2 mm, ± pronounced, surface papillose;

coma persistent, dingy white, 6–8 mm.

subfusiform, 0.8–1.2 × 0.3–0.4 mm, chalazal collar inconspicuous, 0.02–0.06 mm, light brown, surface papillose;

coma persistent, tawny, 3–6 mm.

= 36.

= 36.