Flora of North America species comparison

erect or ascending, unbranched or branched, solitary, few, or occasionally densely clumped, previous year's dead stems not persistent, 20–33 cm, usually glabrous, rarely sparsely villous, glaucescent.

prostrate, loosely mat-forming, 5–40 cm, glabrous, sometimes slightly glaucous.

alternate;

stipules less than 0.1 mm;

petiole (0–)1–3 mm, glabrous;

blade linear or linear-elliptic to obovate or orbiculate, proximal greatly reduced, scalelike, 15–30 × 1–20 mm, base cuneate to rounded, margins entire, apex rounded, broadly acute, or emarginate, surfaces glabrous, glaucescent;

venation often obscure on narrow leaves, midvein conspicuous.

opposite;

stipules usually distinct, linear-subulate, usually irregularly fringed or lobed, rarely laciniate, 0.4–2 mm, glabrous;

petiole 0.2–2 mm, glabrous;

blade narrowly oblong to oblong-obovate or oblong-ovate, 3–15 × 2–7 mm, base asymmetric, one side angled and other rounded to shallowly cordate, margins minutely sparsely serrulate, especially near apex and on longer side, apex rounded to obtuse, abaxial surface usually pale grayish green, adaxial surface sometimes reddish tinged or with reddish blotch, both surfaces glabrous; palmately veined at base, pinnate distally.

usually dark red, campanulate, 1.3–1.6 × 1.4–2.1 mm, glabrous;

glands 5, usually dark red, rarely greenish red, elliptic reniform, thickened, 0.3–0.5 × 0.8 mm;

appendages white or green, often forming narrow rim around distal margin of gland, 0–0.2 mm, entire.

obconic, 0.6–0.9 × 0.3–0.6 mm, glabrous;

glands 4, red to purple, narrowly oblong-elliptic, 0.1–0.2 × 0.1–0.5 mm;

appendages white or pinkish tinged, semilunate and fringing distal margin of gland, 0.1–0.3 × 0.1–0.3 mm, distal margin usually irregularly crenulate or lobed.

20–25.

1–5.

ovary glabrous;

styles 0.4–0.8 mm, 2-fid at apex.

ovary glabrous;

styles 0.1–0.3 mm, 2-fid 1/2 length.

depressed-globose, 1.8–2.5 × 3.6–4.4 mm, glabrous;

columella 1.9–2.4 mm.

broadly ovoid, 1.3–1.9 × 1.6–2 mm, glabrous;

columella 1.3–1.5 mm.

ashy white, ovoid, 2.1 × 1.3 mm, angled with 5 blunt longitudinal ridges, with shallow and irregular pits;

caruncle absent.

with thin white coat that readily falls off, surface below tan brown, oblong-ovoid, sharply angular in cross section, 1–1.4 × 0.6–0.9 mm, with 3–4(–6) prominent transverse ridges that usually interrupt abaxial keel.

usually in terminal dichasia, sometimes pleiochasia;

peduncle 6–33 mm, filiform, glabrous.

solitary or in small, cymose clusters at distal nodes;

peduncle 0.5–1.6 mm.

= 22.