Flora of North America species comparison

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

twigs glabrous or hairy.

persistent, whorled;

petiole present;

blade coriaceous, margins ciliate, prickled, or glabrous.

in whorls of (3–)4;

petiole 0.2–0.3 mm;

blade linear-lanceolate, flat to compressed-triangular in cross section, 2.5–4(–7) × 0.2 mm, margins revolute, sparsely prickled, surfaces glabrous.

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

perulae absent; (bracteoles 2–3).

terminal panicles, ellipsoid, 10–25 cm.

1–1.5 mm, shortly hairy.

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.

calyx lobes (connate ca. 1/3 their lengths), ovate, 1 × 0.7 mm, margins entire, apex subacute, glabrous;

corolla white to pinkish white, broadly campanulate, 4–5 mm, lobes ovate-deltate, 0.5–1 mm, apex broadly rounded;

stamens 10;

filaments 2 mm;

anthers awned, ca. 0.7 mm, awns 2, basal, 2-ciliate, 0.3 mm;

ovary glabrous;

style 2–2.5 mm;

stigma exserted, obconic.

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

1–2 mm, glabrous.

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

testa reticulate or foveolate.

ellipsoid, 0.6 × 0.5 mm, finely pitted.

= 12.