Flora of North America species comparison

filiform.

moderately stout, woody.

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

± erect, gray-green, 10–20 cm, glabrous or often stipitate-glandular, especially distally, internodes of stems 1–6 times as long as leaves (proximal leaves often shorter than internodes), 2–3 stolons radiating from crown, 6–20 cm.

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.

overlapping, loosely proximally, evenly spaced, connate proximally, with tight, scarious sheath 0.3–0.8 mm;

blade ± straight to outwardly curved, gray-green, shallowly concave, 3-veined, often prominently so abaxially, needlelike, 5–11 × 0.5–0.9 mm, rigid, margins not thickened, scarious in proximal 1/2, stipitate-glandular, apex green to purple, acute to obtuse, navicular, dull, stipitate-glandular throughout;

axillary leaves weakly developed among proximal cauline leaves.

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

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

7–25-flowered, open cymes;

bracts lanceolate to subulate, herbaceous, margins scarious.

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

0.3–1.5 cm, often 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-shaped;

sepals 1–3-veined (weakly in flower), ovate to lanceolate, (herbaceous portion narrowly lanceolate to linear-oblong), 3.5–4.8 mm, not enlarging in fruit, apex green to purple, narrowly acute to acuminate, not hooded, stipitate-glandular;

petals broadly oblanceolate, 1.6–1.8 times as long as sepals, apex rounded, entire.

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

sessile, ovoid, 3.5–5 mm, equaling sepals.

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

reddish brown to brown, oblong-elliptic, 2–2.4 mm, tuberculate.