Flora of North America species comparison

several from base, decumbent, (unbranched, leafy for the genus), ca. 1 dm.

simple from base, erect to decumbent, (well-exserted beyond basal leaves, loosely spreading), 0.3–1.2 dm.

(forming a strong rosette; long-petiolate);

blade obovate, 1.5–4(–8) cm, (base ± abruptly narrowing to petiole), margins usually repand or dentate, rarely entire, (apex usually angular, surfaces silvery).

(erect to prostrate, petiole distinct from blade);

blade (inner) spatulate to oblanceolate, or (outer) oblanceolate or orbicular, 1.5–4 cm, margins entire (rarely folded).

blade oblanceolate, 1–2 cm (width 4–8 mm), margins entire or with occasional tooth, (apex acute).

blade spatulate, distinctly different from basal.

congested, (elongated in fruit, greatly exceeding leaves).

moderately dense, (6–20-flowered).

sepals lanceolate to oblong, 6–8 mm, (often keeled);

petals spatulate, 10–12 mm.

sepals (pale yellow), elliptic, 3.5–5 mm;

petals lingulate, 6–9 mm.

(spreading, straight or slightly curved), 8–12 mm.

(strongly sigmoid), 10–20 mm (2 times longer than fruits).

(erect), didymous, inflated, 10–20 × 10–20 mm, (papery or firm, basal sinus shallow to deep, sometimes barely notched, apical sinus deep, narrow, usually closed);

valves (retaining seeds after dehiscence), loosely pubescent, trichomes spreading (appearing fuzzy);

replum obovate to broadly oblong, not constricted, 3–4 mm, as wide as or wider than fruit, apex obtuse;

ovules (4–)8 per ovary;

style 7–9 mm.

lanceolate or orbicular, slightly inflated, (2.5–)3–6 mm, (apex usually strongly narrowed);

valves pubescent, trichomes sparse and closely appressed to surface;

ovules 4–8 per ovary;

style 2.5–6 mm (usually ± equal in length to mature fruit).

flattened.

plump.