Flora of North America species comparison

thickened, woody;

crown, many-branched, woody;

rhizomes and trailing stems to 60 cm.

stout, woody.

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, 3–10 cm, retrorsely puberulent or stipitate-glandular, internodes of flowering stems 2–6 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.

tightly overlapping (vegetative) or variably spaced (cauline), usually connate proximally, with tight, scarious to herbaceous sheath 1.2–1.5 mm;

blade straight to outwardly curved, green, obscurely 1-veined, linear (proximal vegetative) or subulate (cauline), rounded 3-angled (abaxial surface thickened, rounded, adaxial surface flat to concave), 5–20 × 0.4–1 mm, flexuous, margins not thickened, herbaceous, often ciliate, apex often purple, rounded to truncate, shiny, glabrous (vegetative) or glabrous to stipitate-glandular (cauline);

axillary leaves absent.

(3–)6–30-flowered, open cymes;

bracts lanceolate to subulate, usually scarious.

flowers solitary, terminal;

bracts narrowly lanceolate to oblong, herbaceous.

0.2–2 cm, stipitate-glandular.

0.5–3 cm, usually 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 cup-shaped;

sepals prominently 3-veined proximally, lanceolate to narrowly ovate (herbaceous portion often purple, ovate to oblong), 4–8 mm, enlarging slightly in fruit, apex often purple, rounded, hooded, stipitate-glandular;

petals oblanceolate, 1.5–2 times as long as sepals, apex broadly rounded, entire.

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

narrowly ellipsoid, 9–10 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.

brown, suborbiculate with radicle prolonged into beak, compressed, 1.2–1.6 mm, minutely tuberculate (50x).

= 22 (Russia), 26 (Russia), 38 (Russia), 52, ca. 80.