Flora of North America species comparison

unbranched, 0.05–0.4 dm, densely pubescent throughout, trichomes simple, 0.4–0.8 mm, and stalked, 2–5-rayed, 0.1–0.5 mm.

unbranched, 0.2–1.1 dm, pubescent proximally, trichomes short-stalked, 2–5-rayed, 0.1–0.5 mm, (some rays spurred).

(densely imbricate); rosulate;

sessile;

blade oblong to linear-oblanceolate, 0.2–0.8 cm × 0.5–1.5 mm, margins entire, (ciliate, trichomes simple and spurred, 0.3–1.2 mm), surfaces densely pubescent, abaxially with stalked, 2–12-rayed stellate trichomes, 0.1–0.6 mm, adaxially with simple and 2-rayed ones, 0.3–0.8 mm.

rosulate; petiolate;

petiole base and margin ciliate, (trichomes simple, 0.3–1 mm);

blade oblanceolate to lanceolate, 0.8–2.2 cm × 2–6 mm, margins often entire, surfaces pubescent abaxially with stalked, 2–5-rayed, stellate trichomes, 0.1–0.4 mm, often some rays spurred and trichomes appearing subdendritic, rarely glabrate, or with simple and 2-rayed ones, (midvein obscure abaxially, not thickened), adaxially glabrous or sparsely pubescent with simple trichomes, sometimes with long-stalked, 2- or 3-rayed ones.

0.

0.

2–12-flowered, ebracteate, slightly elongated in fruit;

rachis not flexuous, pubescent as stem.

(2–)4–13-flowered, ebracteate, (subcorymbose), not elongated in fruit;

rachis not flexuous, pubescent as stem.

sepals oblong, 1.5–2.5 mm, pubescent, (trichomes simple and short-stalked, 2–4-rayed);

petals bright yellow, oblanceolate to spatulate, 2–3.5(–4) × 1.5–2 mm;

anthers oblong, 0.5–0.6 mm.

sepals (grayish white), ovate to broadly so, 2.5–3 mm, pubescent, (trichomes simple and stalked, 2-rayed);

petals creamy white to yellow, broadly obovate, 3.5–5 × 2.5–3.5 mm;

anthers ovate, 0.4–0.5 mm.

divaricate-ascending, straight, 1–5 mm, pubescent, trichomes simple (0.3–0.9 mm) and stalked, 2–5-rayed (0.1–0.5 mm).

subhorizontal to divaricate-ascending (not appressed to rachis), often slightly curved upward, 4–7(–10) mm, pubescent, trichomes simple (0.4–1 mm), and 2–4-rayed (0.1–0.4 mm).

often ovoid, plane, slightly inflated basally (symmetric), (2.5–)3–4(–5) × 1.5–3.5 mm;

valves densely pubescent, trichomes 2–6-rayed, 0.05–0.4 mm, occasionally some simple;

ovules 4–8(–12) per ovary;

style 0.2–0.6(–0.8) mm.

ovate to ovate-oblong, plane, flattened, 5–10 × 3–5 mm;

valves puberulent along replum, trichomes simple, 0.1–0.3 mm;

ovules (16–)18–28 per ovary;

style 0.2–0.6 mm (stigma as wide as style).

oblong, 1.2–1.8 × 0.8–1.1 mm.

(black), ovoid, 1–1.3 × 0.6–0.8 mm.

= 42.

= 64.