Flora of North America species comparison

ascending, branched at base, herbaceous throughout.

erect, unbranched proximal to inflorescence or few-branched at base.

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.

proximalmost opposite, distalmost alternate, sometimes opposite nearly to inflorescence, erect to ascending;

stipular glands absent;

blade narrowly elliptic to oblanceolate, 8–27 × 1.2–5.6 mm, margins entire, not ciliate, apex acute;

internal venation shown by transmitted light.

open panicles.

panicles.

5–10 mm.

0–5 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.

sepals persistent, lanceolate, 2–3 mm, margins not scarious, entire, or inner and rarely outer sparsely glandular-toothed, apex sharp-pointed;

petals yellow, obovate, 4–7 mm;

stamens 3 mm;

anthers 0.5–1 mm;

staminodia absent;

styles distinct, 1.5–2.5 mm;

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.

turbinate, 2–3 × 2–2.3 mm, apex acute or obtuse, dehiscing freely into 10, sharp-pointed 1-seeded segments, segments persistent on plant, false septa incomplete, proximal margins sparsely but conspicuously ciliate.

1.5–3 × 0.9–1.3 mm.

1.3–1.8 × 0.6–0.9 mm.

= 30.

= 36.