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.

simple, or few together, erect or ascending, 20–70 cm, proximal internodes moderately pilose, becoming glandular distally; nonflowering, axillary branches usually present; small axillary tufts of leaves 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.

sessile, not marcescent;

blade narrowly lanceolate, with prominent midrib, 0.2–1 × 3–12 mm, apex acuminate, ± pubescent on both surfaces, short-ciliate.

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

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

open or congested, usually 3–10-flowered cymes;

bracts normally lanceolate, acuminate, herbaceous, pubescent.

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

erect, 2–25(–60) mm, usually ca. 2 times as long as sepals in fruit, glandular-pubescent.

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.

large, conspicuous, more than 2 cm diam.;

sepals lanceolate, 8–11(–12) mm, outer sepal margins herbaceous, inner sepal margins narrow, membranous, apex acute, moderately to sparsely glandular-hairy;

petals obovate, (15–)18–25 mm, at least 2 times as long as sepals, apex deeply 2-fid;

stamens 10;

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 conic, straight, 15–22 mm, ca. 2 times as long as sepals;

teeth 10, erect, short, becoming outwardly coiled.

brown, 0.6–1.2 mm diam., tuberculate;

testa not inflated.

yellowish brown, round, 2–2.5 mm diam., finely rugose in concentric rings;

testa not inflated.

= 36, 72, (108, Europe).

= 38.