Flora of North America species comparison

flowering shoots often decumbent proximally, 5–20(–30) cm, glandular-pubescent distally, pilose-subglabrous, deflexed or spreading proximally;

non-flowering shoots present; small tufts of leaves present in axils of proximal leaves.

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, sessile, ± spatulate proximally;

blade linear-lanceolate to lanceolate or narrowly oblong, 4–30 × 0.5–6 mm, apex acute, rarely obtuse, subglabrous to softly pubescent, sometimes glandular.

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.

lax, 1–20-flowered cymes, pubescence short, glandular;

bracts lanceolate, margins narrow, scarious, glandular-pubescent.

lax, 3–50-flowered cymes;

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

curved just below calyx, 5–30 mm, 1–6 times as long as sepals, glandular-pubescent.

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

sepals narrowly lanceolate to lance-elliptic, 3.5–7 mm, margins narrow, softly pubescent;

petals obovate, 7.5–12.5 mm, ca. 2 times as long as sepals, apex 2-fid;

stamens 10;

anthers 0.8–1.1 mm;

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, curved, 7.5–11.5 × 2.5–4 mm, (1–)1.5–2 times as long as sepals;

teeth 10, erect, margins convolute.

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

teeth 10, erect, margins convolute.

brown, 0.6–1.2 mm diam., tuberculate;

testa not inflated.

reddish brown, 0.4–1.2 mm, bluntly tuberculate;

testa not inflated, tightly enclosing seed.

= 36, 72, (108, Europe).

= 122–152, usually 144.