Flora of North America species comparison

ascending, branched at base, herbaceous throughout.

erect, unbranched or few-branched at base (all flowering).

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.

divergent;

blade linear to linear-lanceolate, 10–40 × 1.5–5 mm.

open panicles.

open panicles.

5–10 mm.

erect in fruit, to 20–25 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.

homostylous;

sepals ovate, 6–9 mm, margins of inner sepals minutely ciliate, outer ciliate, apex acuminate;

petals usually blue, rarely white, obovate, 10–15 mm;

stamens 5–7 mm;

anthers 1–1.5 mm;

staminodia present;

styles distinct or connate at base, 3–6 mm;

stigmas linear or clavate.

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.

ovoid to subglobose, 6–10 × 5–10 mm, apex rounded, dehiscing incompletely, segments falling freely, margins ciliate or not.

1.5–3 × 0.9–1.3 mm.

4–6 × 2.5–3 mm.

= 30.

= 30.