Flora of North America species comparison

stiffly spreading-ascending, branched at base and distal to middle.

± spreading or ascending, or branches from base prostrate.

alternate or proximalmost opposite, crowded at base, appressed-ascending;

stipular glands absent;

blade oblanceolate to lanceolate or linear-lanceolate, 8–17 × 1.2–2.3 mm, margins entire, not ciliate, apex apiculate.

blade linear to linear-oblanceolate, 8–20 × 0.7–2.3 mm.

few-flowered racemes.

open panicles or racemes.

(5–)20–30(–60) mm.

8–25 mm.

sepals persistent, lanceolate to lance-ovate, 4.5–7 mm, margins narrowly scarious, inner sepals conspicuously toothed, outer ones very coarsely glandular-toothed, sometimes sparsely so, apex acuminate or narrowly acute;

petals lemon yellow, obovate, 9–15 mm;

stamens 5–7 mm;

anthers 1–2 mm;

staminodia absent;

styles connate to within 0.8–3 mm of apex, 5.7–9 mm;

stigmas capitate.

homostylous;

sepals ovate, 3–5 mm, margins glabrous, apex acute;

petals usually blue, rarely white, obovate, 5–14 mm;

stamens 3–5 mm;

anthers 0.4–1.3 mm;

staminodia present;

styles distinct, 1–3 mm;

stigmas capitate.

ovoid (distinctly longer than broad), 3.5–4.6 × 2.5–3.1 mm, apex sharp-pointed, dehiscing completely into 5, 2-seeded segments (very easily crushed), segments persistent on plant, false septa incomplete, proximal margins terminating in loose fringe, cartilaginous plates at base of segments poorly developed.

broadly ovate to subglobose, 4–6 mm diam., apex obtuse, segments persistent on plant, margins ciliate.

2.5–3 × 0.9–1.2 mm.

3–5 × 1.2–1.6 mm.

= 30.

= 18.