Flora of North America species comparison

filiform.

stout, woody;

crown with radiating subterranean branches.

erect to ascending, green, 5–20 cm, stipitate-glandular, often densely so, internodes of all stems 1–3 times as long as leaves.

erect to ascending, green, 8–28 cm, glabrous, internodes of flowering stems 0.3–10 times as long as leaves.

overlapping proximally, perfoliate proximally, with ± loose, scarious to herbaceous sheath 0.5–1 mm;

blade green, flat, 1-veined, oblanceolate to cuneate (proximal) to oblong-lanceolate to ovate (remaining cauline), 5–30(–35) × 2–4 mm, flexuous, margins not thickened, ± scarious, smooth, apex green to purple, obtuse to abruptly pointed, dull, glabrous;

axillary leaves absent.

variably spaced distally, overlapping (proximal 1/3), connate proximally, with tight, scarious to herbaceous sheath 0.2–1.5 mm;

blade straight to slightly spreading, green, concave, 3-veined, lateral veins less prominent, lanceolate to subulate, 2–13 × 1–5 mm, rigid, margins rounded, scarious in proximal 1/2–2/3, smooth, apex green, blunt to apiculate, navicular, shiny, glabrous;

axillary leaves present.

7–12-flowered, open cymes, or rarely solitary, terminal;

bracts ± lanceolate, herbaceous, sometimes scarious-margined proximally.

5–12+-flowered, narrow cymes;

bracts ovate to subulate, ± scarious.

reflexed in fruit, 0.5–2.5 cm, stipitate-glandular.

0.2–3 cm, densely stipitate-glandular.

hypanthium disc-shaped;

sepals obscurely veined, ovate to broadly elliptic (herbaceous portion ovate to broadly elliptic), 3–6 mm, to 7 mm in fruit, apex green or purple, acute to acuminate, not hooded, stipitate-glandular;

petals obovate to oblanceolate, 2–2.5 times as long as sepals, apex rounded, broadly notched.

hypanthium disc- to cup-shaped;

sepals obscurely veined, ± broadly ovate (herbaceous portion ± broadly ovate), 2.5–3 mm, not enlarging in fruit, apex green, rounded, not hooded, stipitate-glandular proximally;

petals spatulate, 2.5–3.2 times as long as sepals, apex broadly rounded, entire.

sessile, broadly ellipsoid, 6–7.5 mm, equaling or longer than sepals.

on stipe ca 0.1 mm, ovoid, 4.7–5 mm, longer than sepals.

dark brown to blackish, orbiculate with radicle prolonged into beak, only slightly compressed, 0.7–0.8 mm, echinate with rounded tubercles.

brown, suborbiculate, without prolonged beak, not compressed, 0.6–0.65 mm, tuberculate;

tubercles low, rounded.