Flora of North America species comparison

decumbent to prostrate, spreading, ascending, or erect, mat-forming, glabrous or hairy.

spreading or ascending to erect, forming dense mats, puberulent, glandular-hairy, or glabrous.

blade canoe-shaped, without abaxial groove, or dorsiventrally expanded by marginal outgrowths forming abaxial groove, margins entire, thin or scarious, surfaces glabrous or glandular or hairy.

imbricate, somewhat appressed to leaf above, usually 4-ranked;

blade ovate-lanceolate, abaxial groove absent, 3–4.5 × 1–1.5 mm, margins thin but not scarious, without curled hairs at leaf tips, surfaces glabrous to glandular-hairy or sparsely hairy.

erect with deflexed tip at anthesis, elongating (or not) and straight in fruit;

bracteoles absent.

sepals ± distinct, oblong-ovate;

filaments not enlarged at base;

anthers with awns;

ovary subglobose to ovoid;

style cylindric;

stigma capitate.

sepals 2–3 mm, margins entire or erose;

petals connate to 1/3 their lengths, tips recurved, corolla white, campanulate, 5–8 mm;

stamens to 3 mm.

borne on erect pedicels, subglobose to ovoid.

1.5–4 mm.

= 13.