Flora of North America species comparison

several to many, erect to ascending, loosely clumped, terete, 10–25 cm, rarely branched distal to base, usually short-villous and strigillose throughout, mixed sparsely glandular puberulent distally, rarely subglabrous proximal to inflorescence.

erect to ascending, often clumped but not matted, green or gray-green, terete, 10–110(–120) cm, usually well-branched throughout, sometimes simple, strigillose and/or long-villous, usually mixed glandular puberulent distally, rarely glabrate.

opposite proximal to inflorescence, alternate and usually crowded distally, sessile;

blade gray-green, narrowly to broadly ovate, 1.3–2.6 × 0.8–2 cm, base rounded to subcordate, margins usually serrulate, 6–12 teeth per side, rarely subentire, veins inconspicuous, 3–5 per side, apex rounded proximally to acute distally, surfaces sparsely short-villous to subglabrous and glaucous;

bracts much reduced.

± densely spaced, alternate and often fasciculate distally, subsessile, blade grayish green or green to silvery-canescent, usually narrowly linear to lanceolate or elliptic to ovate, rarely orbiculate, 0.6–5(–6) × 0.1–2.5 cm, base cuneate to attenuate, margins subentire to sharply toothed, 3–15 teeth per side, veins inconspicuous or prominent, 3–7 per side, apex acute, sometimes with caducous dark mucro, surfaces usually ± densely strigillose, sometimes mixed villous and/or glandular puberulent, rarely glabrate;

bracts much smaller and narrower.

erect, compact racemes, densely canescent and glandular puberulent, or subglabrous, only ovaries pubescent.

erect spikes or racemes, loose to congested, often branched, glandular puberulent and sometimes mixed strigillose or villous.

erect;

buds often purplish green, 9–11 × 3.5–5 mm, blunt;

pedicel 6–12 mm;

floral tube 2.1–4 × 2.9–5 mm, prominent ring of tissue 0.3–0.6 mm wide, edged by spreading hairs, 0.9–1.8 mm from base of tube inside;

sepals purplish green, 5–10.5 × 2–3.5 mm, apex acute;

petals pink to rose-purple, obcordate, 10–22.5 × 9.5–15.5 mm, apical notch 2–6.5 mm;

filaments cream, those of longer stamens 6.5–14 mm, those of shorter ones 3.5–11 mm;

anthers cream 1.9–3.3 × 0.7–1.2 mm;

ovary 12–22 mm, ± densely canescent and glandular puberulent;

style white to light pink, 10.5–18 mm, sparsely villous just proximal to stigma, stigma broadly 4-lobed, 1–1.8 × 2.4–4.2 mm, exserted beyond anthers.

buds 11–18 × 4–6 mm, subsessile or pedicels 1–2 mm;

floral tube same color as petals, 16–32 × 5–8 mm, base slightly bulbous, ring of 8 irregular scales at base of filaments 4–6.5 mm from base inside;

sepals same color as petals, 7–15 × 3.5–5 mm, abaxial surface densely pubescent;

petals usually orange-red, very rarely white, obcordate, 8–17 × 5–9.5 mm, apical notch 2–3 mm;

filaments light orange-red to white, those of longer stamens 12.5–32 mm, those of shorter ones 10–25 mm;

anthers 2.7–4x 0.8–1.2 mm, apiculate;

ovary 8–15 mm, glandular puberulent, often mixed villous;

style light orange-red, 42–65 mm, glabrous, stigma 4-lobed, 1–1.4 × 2.4–3 mm, exserted 8–15 mm beyond anthers.

25–45 mm, surfaces canescent and glandular puberulent;

pedicel 6–25 mm.

straight or ± curved-ascending, 15–35 mm, sometimes beaked, surfaces glandular puberulent and strigillose;

subsessile or pedicel 0–3 mm.

narrowly obovoid, 1.4–1.9 × 0.6–0.7 mm, with low, obscure chalazal collar, light brown, surface papillose;

coma easily detached, somewhat tawny, 4–8 mm.

broadly to narrowly obovoid, with constriction 0.6–0.8 mm from micropylar end, 1.5–2.6 × 0.9–1.3 mm, chalazal collar inconspicuous, light brown, surface low papillose;

coma easily detached, dingy white, 5.5–7 mm.

= 36.