Flora of North America species comparison

flowering stems erect from decumbent base, branched proximally, 10–45 cm, softly pubescent, eglandular with straight hairs; nonflowering shoots, when present, produced proximally, decumbent, rooting at nodes, branched, 5–20 cm, often subglabrous with alternating lines of eglandular hairs; small axillary tufts of leaves usually absent.

flowering stems usually erect, 10–25 cm, glabrous to sparsely pubescent proximally, more densely so in mid and distal stem, hairs patent to slightly deflexed, multicellular, glandular and eglandular;

internodes usually equaling or exceeding leaves; nonflowering shoots present; small axillary tufts of leaves absent.

not marcescent;

blade 10–25(–40) × 3–8(–12) mm, densely covered with patent to ascending, colorless, long, eglandular hairs;

leaves of flowering shoots in distant pairs, sessile, blade elliptic to ovate-oblong, apex subacute;

leaves of sterile shoots pseudopetiolate, often spatulate, blade oblanceolate, apex obtuse.

sessile (flowering shoots) or petiolate (proximal stems and nonflowering shoots); flowering shoots with blade lanceolate, 5–20 × 2–5 mm, not succulent, apex ± acute, pubescent;

proximal stem and nonflowering shoots with blade oblanceolate often spatulate, not succulent, apex obtuse, ± pubescent on both surfaces (rarely subglabrous), with straight, strigose hairs or cilia, hairs pale, fuscous, mostly eglandular.

lax, 3–50-flowered cymes;

bracts lanceolate, reduced, herbaceous, eglandular-pubescent, distal often with narrow, scarious margins.

open, dichotomous, (1–)3–10-flowered cymes;

bracts lanceolate, distal with scarious margins, proximal herbaceous and foliaceous, pubescence glandular and eglandular.

somewhat curved distally, 2–10(–20) mm, longer than sepals, densely pubescent with patent, eglandular, rarely glandular hairs.

erect, angled at base of calyx in fruit, 8–55 mm, 1–5 times as long as capsule, densely pubescent with patent glandular and eglandular hairs.

sepals ovate-lanceolate, 5–7 mm, margins narrow, apex acute, scarious, pubescent with eglandular, rarely glandular, hairs;

petals oblanceolate, 1–1.5 times as long as sepals, apex deeply 2-fid;

stamens 10, occasionally 5;

styles 5.

sepals lanceolate to lance-elliptic, 3–7 mm, margins broad, apex ± acute, densely glandular-pubescent;

petals broadly oblanceolate, 6–12 mm, ± equaling (rarely to 2 times as long as) sepals, apex deeply 2-fid;

stamens 10;

styles 5.

narrowly cylindric, curved, 9–17 mm, ca. 2 times sepals;

teeth 10, erect, margins convolute.

cylindric, curved, 8–12 mm, ca. 2 times sepals, rarely shorter;

teeth 10, erect, margins convolute.

reddish brown, 0.4–1.2 mm, bluntly tuberculate;

testa not inflated, tightly enclosing seed.

pale to dark brown, 0.7–1.1 mm, tuberculate;

testa not inflated, tightly enclosing seed.

= 122–152, usually 144.

= 72.