Flora of North America species comparison

erect, spreading, or creeping, (much-branched);

twigs glabrous or hairy.

in whorls of 4;

petiole 0.1–0.3 mm;

blade linear-lanceolate, flat, 3–5.5 × 0.5–0.7 mm, margins revolute, not prickled, abaxial surface stiffly short-hairy, adaxial sparsely, stiffly short-hairy (hairs ca. 0.1–0.2 mm), mixed with longer, glandular hairs (hairs 0.5–0.6 mm).

persistent, whorled;

petiole present;

blade coriaceous, margins ciliate, prickled, or glabrous.

terminal umbels, capitate, 0.8–1.6 cm.

terminal or axillary, umbels, racemes, or panicles, 10–30-flowered;

perulae absent; (bracteoles 2–3).

2–3 mm, glabrous.

calyx lobes narrowly deltate, 2.5 × 0.6–0.8 mm, margins entire, with short, stiff hairs, apex obtuse, with short, stiff hairs;

corolla light pink, campanulate, 4–5 mm, lobes deltate, 0.5 mm, apex acute;

stamens 10;

filaments ca. 3 mm;

anthers awned, ca. 0.7 mm, awns 2, basal, subulate, ca. 0.7 mm;

ovary hairy;

style 3–4 mm;

stigma included, not slender, capitate.

bisexual, radially symmetric;

sepals 4–5, distinct, (shorter than petals);

petals 4–5, connate nearly their entire lengths [connate ca. 1/2 their lengths], corolla persistent, campanulate;

stamens 10, included or exserted; (filaments glabrous);

anthers with or without awns, dehiscent through narrowly oblong, subterminal pores;

ovary pseudo-10-locular;

style (slender, straight), included or exserted, (glabrous);

stigma filiform, obconic, or capitate.

capsular [drupaceous], ellipsoid, dehiscence loculicidal [indehiscent].

1.5–2 mm.

ellipsoid-ovoid, 0.3 × 0.3 mm, reticulate.

ca. 10, ellipsoid to obovoid, not winged, not tailed;

testa reticulate or foveolate.

= 12.

= 24.