Flora of North America species comparison

erect, sparingly branched proximally, slender, 15–35 cm, sparsely glandular-pilose; small axillary tufts of leaves absent.

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.

not marcescent;

proximal blades broadly spatulate-petiolate, 8–55 × 3–16 mm, apex acute or obtuse, sometimes short-acuminate, softly pilose;

cauline few, sessile, blade linear-lanceolate to narrowly oblanceolate, 7–30 mm, apex acute, pilose.

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.

very open and loose, 2–9(–25)-flowered cymes;

bracts narrowly lanceolate, pilose.

lax, 3–50-flowered cymes;

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

straight, becoming sharply deflexed at base, slender, 5–20 mm, elongating in fruit, 1.5–4 times as long as sepals, glandular-pilose.

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

sepals green, turning pale orange-brown in fruit, lanceolate to ovate, 3–6 mm, margins narrow, apex acute, with short, glandular pubescence;

petals oblanceolate, 5–8 mm, 1.5–2 times as long as sepals, apex 2-fid;

stamens 5;

styles 5.

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.

cylindric, straight, 5–12 mm, 1.5–2 times as long as sepals;

teeth 10, becoming outwardly coiled.

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

teeth 10, erect, margins convolute.

red-brown, 0.4–0.7 mm diam., tuberculate;

tubercles ± pointed;

testa not inflated.

reddish brown, 0.4–1.2 mm, bluntly tuberculate;

testa not inflated, tightly enclosing seed.

= 36.

= 122–152, usually 144.