Flora of North America species comparison

ascending to erect, (13–)20–40(–51) cm, stellate-tomentose.

erect, 35–80 cm, usually stellate-pannose, sometimes sparsely stellate-pubescent.

cauline and, sometimes, basal basal mat-forming;

petiole 1–3 mm;

blade obovate, 10–22 × 3–5 mm;

cauline: petiole 1–4 mm;

blade oblanceolate to narrowly lanceolate, 10–38(–48) × 2–5.5(–7.8) mm, margins revolute;

surfaces stellate-tomentose abaxially, stellate-pubescent adaxially, without simple hairs;

lateral veins obscure abaxially.

cauline, tending to persist in summer;

petiole 0–1 mm;

blade linear to lanceolate, 10–30(–43) × 2–8 mm, surfaces stellate-pannose, lateral veins obscure abaxially.

axillary and terminal, solitary flowers or glomerules; chasmogamous flowers solitary, at tips of branches, overtopping cleistogamous, cleistogamous 2–7 per glomerule, flowering 1–3 months later than chasmogamous.

terminal, narrow panicles, usually stellate-pannose, sometimes sparsely stellate-pubescent; chasmogamous flowers 8–20 per panicle, cleistogamous 0.

10–22 mm;

bracts 3–7 × 0.5–1 mm.

1–9 mm, sparsely or not glandular-hairy;

bracts 5–25 × 0.3 mm.

flowers: outer sepals linear, 1.2–2.5 × 0.2 mm, inner sepals 2.5–4.3 × 1.3–2 mm, apex acute;

petals obovate, 4–6 × 3.5–5 mm;

capsules 2–3 × 1.4–1.8 mm, glabrous.

flowers: outer sepals linear, 2 × 0.2 mm, inner sepals 5–7(–8) × 2.5–3.5 mm, apex acute to acuminate;

calyx stellate-pubescent, hairs to 1 mm;

petals obovate, 6–9 × 5–7 mm;

capsules 3.5–4.3 × 2.5–2.7 mm, glabrous.

flowers: outer sepals linear, 0.5–1 × 0.2 mm, inner sepals ovate, 1.5–1.8 × 1–1.5 mm, apex acute;

capsules 1.3–1.7 × 1–1.3 mm, glabrous.