Flora of North America species comparison

unbranched, 0.08–0.6 dm, densely to moderately pubescent throughout, trichomes simple and stalked, 2- or 3-rayed, 0.2–1 mm.

unbranched, (0.05–)0.2–0.8(–1.5) dm, pubescent throughout, trichomes simple and 2-rayed, 0.4–1 mm, with 3–5-rayed ones, 0.05–0.4 mm, (sometimes trichomes mostly simple).

rosulate;

petiolate;

petiole ciliate, (trichomes simple, 0.2–1 mm);

blade linear to linear-oblanceolate, (0.4–)0.6–1.5(–2) cm × 1–2 mm, margins entire, (pubescent as petiole), surfaces pubescent abaxially with simple and stalked, 2- or 3-rayed trichomes, 0.1–0.4 mm, adaxially glabrate or subapically sparsely pubescent with simple trichomes.

rosulate;

petiolate;

petiole base and margin ciliate, (trichomes often course, simple, 0.4–1.3 mm);

blade oblanceolate to obovate, 0.6–1.8 cm × 1.5–5 mm, margins entire, surfaces pubescent, abaxially with stalked, 2–6-rayed trichomes, 0.2–0.6 mm, adaxially with primarily simple and stalked, 2-rayed trichomes, to 1.1 mm, with 3–5-rayed ones, 0.2–0.4 mm.

1–4;

sessile;

blade linear to linear-oblanceolate, margins entire, surfaces pubescent as basal.

0.

5–12(–16)-flowered, usually ebracteate, rarely proximalmost flowers bracteate, slightly elongated in fruit;

rachis not flexuous, pubescent as stem.

2–9(–12)-flowered, ebracteate, (corymbose), slightly elongated in fruit;

rachis not flexuous, pubescent as stem.

sepals ovate, 1.5–2 mm, pubescent, (trichomes simple and short-stalked, 2- or 3-rayed);

petals bright yellow, spatulate, 3–4.5 × 1–2 mm, (flared, clawed);

anthers ovate, 0.3–0.5 mm.

sepals (grayish green), broadly ovate, 2.2–3 mm, pubescent, (trichomes simple, to 1 mm, sometimes with stalked, smaller, 2–4-rayed ones);

petals (broadly patent), yellow, obovate, 4–6 × 3–5 mm;

anthers ovate, 0.3–0.4 mm.

divaricate-ascending, straight or slightly curved upward, 1.5–6 mm, pubescent as stem.

divaricate-ascending, straight or slightly curved upward, 4–11(–16) mm, pubescent, trichomes simple and 2–4-rayed.

lanceolate to oblong-lanceolate, slightly twisted or plane, flattened, 4–12 × 1.5–3 mm;

valves glabrous or pubescent, trichomes simple, 0.07–0.2 mm;

ovules 16–20 per ovary;

style 0.4–1.2 mm.

oblong or ovate, plane, flattened, 6–12 × 3.5–5.5 mm;

valves pubescent or puberulent, trichomes simple, 0.1–0.4 mm, (sometimes with short-stalked, 2- or 3-rayed ones);

ovules 12–24 per ovary;

style 0.6–1 mm (stigma distinctly wider than style).

ovoid, 1–1.4 × 0.7–1 mm.

(brown), ovoid, 1–1.3 × 0.6–0.9 mm.

= 24 ± 3.

= 128, 144.