Flora of North America species comparison

erect, branched at base and in inflorescence.

spreading to erect, few-branched.

opposite near base or alternate throughout, appressed-ascending;

stipular glands present;

blade linear to linear-lanceolate, 8–20 × 0.5–2.1 mm, margins entire or with scattered minute marginal glands, not ciliate, apex acute; 1-nerved.

alternate, spreading;

stipular glands moderately developed at proximal nodes, absent on distal nodes;

blade linear, 5–30 × 0.5–1.5 mm, margins entire, not ciliate, apex acute.

panicles, with ascending to spreading branches.

panicles.

0–3 mm.

5–13 mm.

sepals persistent, lanceolate to ovate, 2.5–5 mm, margins of inner sepals narrowly scarious, conspicuously glandular-toothed, apex acute or acuminate;

petals lemon yellow, oblanceolate or narrowly obcordate, 7–11 mm;

stamens 2–8 mm;

anthers 0.5–1 mm;

staminodia present;

styles distinct, 3–6.5 mm;

stigmas capitate.

sepals deciduous, linear-lanceolate to lanceolate, 4–12 mm, margins narrowly scarious, glandular-toothed, apex acute to acuminate;

petals yellow to orange salmon, faintly maroon banded near base, obcordate, 7–12 mm;

stamens 4–5 mm;

anthers 1–1.5 mm;

staminodia absent;

styles connate nearly to apex, 3–4 mm;

stigmas dark, capitate.

ovoid, 2–3 × 2–2.5 mm, apex sharp-pointed, dehiscing readily into 10, 1-seeded segments, segments falling freely, false septa incomplete, false and true septa margins ciliate.

ovoid, 3.3–4 × 2.6–3.1 mm, apex obtuse, dehiscing into 5, 2-seeded segments, segments persistent on plant, false septa complete, proximal part membranaceous, not terminating in loose fringe, distal part cartilaginous, margins not ciliate.

1.2–1.9 × 0.7–1.1 mm.

2.5–2.7 × 1.1 mm.

= 36.

= 30.