Flora of North America species comparison

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

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;

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.

sessile, not marcescent;

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

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

bracts narrowly lanceolate, pilose.

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

bracts normally lanceolate, acuminate, herbaceous, pubescent.

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

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

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.

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

teeth 10, becoming outwardly coiled.

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

teeth 10, erect, short, becoming outwardly coiled.

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

tubercles ± pointed;

testa not inflated.

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

testa not inflated.

= 36.

= 38.