Flora of North America species comparison

thickened, woody;

crown, many-branched, woody;

rhizomes and trailing stems to 60 cm.

filiform to somewhat thickened;

rhizomes absent.

ascending to erect, ± green, 2–20 cm, densely glandular-hairy throughout, internodes of flowering stems 0.2–2 times as long as leaves.

ascending to erect, green, 2–8(–18) cm, moderately to densely stipitate-glandular (very rarely glabrous), internodes of stems 1–10 times as long as leaves; trailing stems absent.

tightly appressed to spreading, ± evenly spaced, connate proximally, with ± loose, scarious sheath 0.1–0.7 mm;

blade straight to recurved, ± green, flat, prominently 1-veined abaxially, broadly lanceolate to linear, 5–20 × 0.5–1.5 mm, ± rigid, margins rounded, scarious in proximal 1/3–1/4, apex green to purple, acute to acuminate or spinescent, navicular with small mucro or spinescent, dull, stipitate-glandular;

axillary leaves present proximally to throughout.

overlapping, ± tightly, distally (cauline), concentrated proximally (cauline), connate proximally, with often loose, usually scarious sheath 0.2–0.7 mm;

blade ± straight or outwardly curved, green, flat to 3-angled, prominently 3-veined abaxially, subulate, 1.5–10 × 0.3–1.3 mm, flexuous, margins not thickened, scarious, smooth, apex green or purple, acute to apiculate, often navicular, shiny, sparsely to densely ciliate, often stipitate-glandular;

axillary leaves present among vegetative leaves.

(3–)6–30-flowered, open cymes;

bracts lanceolate to subulate, usually scarious.

3–7+-flowered, open cymes or rarely flower solitary, terminal;

bracts broadly subulate to narrowly lanceolate, herbaceous, margins scarious.

0.2–2 cm, stipitate-glandular.

0.2–1.5 cm, densely stipitate-glandular.

hypanthium disc-shaped;

sepals 1–3-veined, narrowly lanceolate to lanceolate or ovate (herbaceous portion narrowly lanceolate to lanceolate or ovate), 3–6(–7) mm, not enlarging in fruit, apex often purple, acute to acuminate or spinescent, not hooded, stipitate-glandular;

petals obovate, 0.5–1.6 times as long as sepals, apex rounded, entire.

hypanthium disc-shaped;

sepals prominently 3-veined, ovate to lanceolate (herbaceous portion oblong to narrowly ovate), 2.5–3.2 mm, not enlarging in fruit, apex green to purple, acute to acuminate, not hooded, stipitate-glandular;

petals elliptic, 0.8–1.3 times as long as sepals, apex rounded, entire.

on stipe ca. 0.1–0.2 mm, ovoid, 5 mm, usually shorter than sepals.

on stipe ca. 0.2 mm, ovoid, 4.5–5 mm, longer than sepals.

reddish brown to dark brown, oblong-elliptic with hilar notch on 1 end, 1.5–2.7 mm, tuberculate;

tubercles low-rounded.

reddish brown, suborbiculate with radicle prolonged into beak, somewhat compressed, 0.4–0.5 mm, tuberculate;

tubercles low, elongate, rounded (to angled on edge) (50x).

= 24.