Flora of North America species comparison

thickened, woody;

crown, many-branched, woody;

rhizomes and trailing stems to 60 cm.

filiform to somewhat thickened.

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

erect to ascending, green, 4–30 cm, glabrous, internodes of flowering stems 1–10 times as long as leaves.

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 or crowded proximally, variably spaced distally, connate proximally, with tight, scarious to herbaceous sheath 0.2–0.5 mm;

blade straight to slightly outwardly curved, green, flat, 1-veined, occasionally 3-veined abaxially, linear to subulate, 4–15 × 0.5–2 mm, flexuous, margins not thickened, scarious, smooth, apex green or purple, mostly rounded, slightly navicular, shiny, glabrous;

axillary leaves present among proximal cauline leaves.

(3–)6–30-flowered, open cymes;

bracts lanceolate to subulate, usually scarious.

7–15-flowered (rarely fewer), open cymes;

bracts subulate, herbaceous.

0.2–2 cm, stipitate-glandular.

0.3–2.5 cm, glabrous.

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 broadly lanceolate (herbaceous portion ovate to broadly lanceolate), 2.5–3.2 mm, to 4 mm in fruit, apex green to purple, acute to apiculate, not hooded, glabrous;

petals lancolate to spatulate, 0.5–0.8 times as long as sepals, apex rounded, entire, or petals absent.

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

on stipe ca. 0.2 mm, ovoid, 3.5–4.5 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.

dark brown to black, suborbiculate with radicle prolonged into tiny beak, 0.5–0.6 mm, tuberculate;

tubercles low, rounded, somewhat elongate.

= 30, 60.