Flora of North America species comparison

ascending, branched at base, herbaceous throughout.

ascending or erect, usually unbranched.

alternate or sometimes proximal leaves opposite, appressed-ascending;

stipular glands present (conspicuous);

blade linear, 7–20 × 0.6–1.5 mm, margins entire or distal leaves sparsely glandular-toothed, ciliate, apex acute; 1-nerved.

blade linear or linear-lanceolate, 5–20 × 1–3 mm.

open panicles.

much-branched panicles.

5–10 mm.

spreading, 5–25 mm.

sepals falling tardily, lanceolate, 4–7 mm, margins of inner sepals scarious, glandular-toothed, apex acute to acuminate, puberulent at least on midrib;

outer 3-nerved;

petals yellowish orange to salmon, with maroon or reddish base, obcordate or broadly obovate, 9–15 mm;

stamens 4–7 mm;

anthers 0.6–1.4 mm;

staminodia absent;

styles connate nearly to apex, 3–7 mm;

stigmas dark, capitate.

heterostylous;

inner sepals ovate-lanceolate or ovate, 4.5–5.5 mm, margins glabrous, apex obtuse, outer ones lanceolate or ovate-lanceolate, 3.5–4.5 mm, narrower than inner ones, margins glabrous, apex acute or acuminate;

petals blue, obovate or obovate-lanceolate, 10–25 mm;

stamens 5 mm, anthers 2 mm (long-styled morph) or stamens 6.5 mm, anthers 1.8 mm (short-styled morph);

styles distinct, 8 mm (long-styled morph) or 2.5 mm (short-styled morph);

stigmas capitate.

ovoid-ellipsoid, 3.5–4 × 2.5–5 mm, apex obtuse, dehiscing into 5, 2-seeded segments, segments persistent on plant, false septa complete, proximal margin not terminating in loose fringe, distal part cartilaginous, margins ciliate.

subglobose, 5–7 mm diam., apex acute to obtuse, segments persistent on plant, margins ciliate or not.

1.5–3 × 0.9–1.3 mm.

3–4.2 × 1.7–2 mm.

= 30.

= 18.