Flora of North America species comparison

ascending to erect from decumbent base, branched from base.

± spreading or ascending, or branches from base prostrate.

alternate throughout or proximal opposite, divergent, erect or spreading;

stipular glands absent;

blade narrowly lanceolate, 5–25 × 1–3 mm, thick (basal leaves), margins entire, not ciliate, apex rounded to subacute; 1-nerved.

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

panicles or thyrses.

open panicles or racemes.

1–5 mm.

8–25 mm.

sepals persistent, lanceolate to ovate or broadly oblong, 2.5–4.5 mm, margins not scarious, inner glandular-toothed, outer entire or sparsely glandular-toothed near apex, apex acute to ± obtuse, not acuminate;

petals bright yellow, oblanceolate to obovate, 5–12 mm;

stamens 3–8 mm;

anthers 1.5–2.5 mm;

staminodia absent;

styles distinct, 4–7 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-pyriform, 2.3–4 × 2.8–3.6 mm, apex pointed (easily crushed), freely dehiscing into 10, 1-seeded segments, segments persistent on plant, false septa incomplete, proximal margins ciliate.

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

2–2.7 × 1–1.4 mm.

3–5 × 1.2–1.6 mm.

= 26.

= 18.