Flora of North America species comparison

erect, branched at base and in inflorescence.

erect or spreading, 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 to ascending;

stipular glands absent;

blade linear-lanceolate to narrowly elliptic, 5–10 × 1–1.5 mm, margins entire, not ciliate, apex acuminate.

panicles, with ascending to spreading branches.

panicles.

0–3 mm.

1–5 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 persistent, lanceolate to ovate, 3–4 mm, margins of inner sepals broadly scarious, densely glandular-ciliate, glandular-toothed, apex acuminate to setaceous;

petals lemon yellow, oblong to obovate, 4–6 mm;

stamens 1.5 mm;

anthers 0.3 mm;

staminodia present or absent;

styles distinct, 1 mm;

stigmas linear.

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.

subglobose, 2 mm diam., apex sharp-pointed (easily crushed), readily dehiscing into 5, 2-seeded segments, segments persistent on plant, false septa incomplete, margins of true septa ciliate.

1.2–1.9 × 0.7–1.1 mm.

1.1 × 0.9–1 mm.

= 36.

= 20.