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 shoots ascending, often decumbent at base, branched, (15–)25–35(–40) cm, softly pubescent to subglabrous, hairs spreading, straight, concentrated in longitudinal lines toward base, glandular and eglandular; nonflowering leafy shoots often present, straggling, 5–15 cm; small axillary tufts of leaves present.

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;

cauline with largest at mid stem, smaller distally and proximally, blade narrowly oblong, linear-lanceolate to lanceolate or ovate, 20–45 × 3–11 mm, apex usually obtuse, softly ciliate-pubescent on both surfaces, more so on margins and abaxial midrib, rarely subglabrous, sometimes densely villose;

proximal leaf blades often oblanceolate, apex ± obtuse.

lax, 3–50-flowered cymes;

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

lax, 5–20-flowered cymes, pubescent, glandular, not viscid;

bracts lanceolate, proximal foliaceous, distal smaller, with scarious margins, glandular-pubescent.

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

curved immediately below capsule, slender, 10–24 mm, ca. 2 times as long as sepals, pubescence spreading, glandular.

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-elliptic, 5–8 mm, margins narrow, apex acute, densely and softly glandular-pubescent;

petals obovate, 10–15 mm, 2 times as long as sepals, apex deeply 2-fid;

stamens 10;

anthers 0.9–1.1 mm;

styles 5.

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

teeth 10, erect, margins convolute.

cylindric, slightly curved, slender, 10–14 × 3–4 mm, 2–2.3 times as long as sepals;

teeth 10, erect, margins convolute.

reddish brown, 0.4–1.2 mm, bluntly tuberculate;

testa not inflated, tightly enclosing seed.

brown, 0.8–1.2 mm diam., tuberculate;

testa not inflated, tightly enclosing seed.

= 122–152, usually 144.

= 72.