Flora of North America species comparison

erect, simple or branched, slender, to 80 cm, subglabrous to retrorsely puberulent especially proximally, distal internodes frequently glutinous.

erect, scarcely branched, 20–100 cm, glabrous.

2 per node;

blade with margins ciliate toward base, apex acute to obtuse;

basal blades oblanceolate, spatulate;

cauline narrowly oblanceolate to linear, 1–9 cm × 2–15 mm, scabrous or puberulent, rarely glabrous on both surfaces.

blade linear to narrowly oblanceolate, 3–16 cm × 3–12 mm, ± fleshy, base tapering into short petiole, apex acute, glabrous except for few cilia at base.

cymose, open, branches usually ascending, several- to many-flowered, 1-flowered in depauperate specimens.

cymose, terminal and axillary, elongate, 1–3-flowered, open, bracteate, bracteolate, pedunculate;

peduncle slender, 2–10 cm;

bracts and bracteoles much-reduced, linear-lanceolate, often ciliate.

slender, 2–10 cm.

mature calyx prominently 10-veined, campanulate to ovate, 5–9 × 3–5 mm, margins dentate, glabrous, veins parallel, with pale commissures;

lobes usually purple, triangular, acute, ca. 1 mm;

petals white, often suffused with dark red, rarely wholly dark red, limb ovate, usually 2-lobed, ca. 2.5 mm, slightly longer than calyx, rarely petals absent, claw narrow, appendages 0.1–0.4 mm;

stamens included;

styles 3;

stigmas included.

calyx tubular, 17–22 × 4–5 mm in flower, broadening to 7 mm in fruit but contracted around carpophore, glabrous, lobes lanceolate, 3–4 mm, margins membranous and ciliate near broad, obtuse apex;

corolla scarlet, 2–21/2 times longer than calyx, limb lanceolate, narrowed into claw, 4–5 mm wide, margins entire or shallowly dentate, appendages linear, 4–5 mm;

stamens exserted;

styles 3, exserted.

equaling calyx, opening by 6 teeth;

carpophore less than 1 mm.

clavate, equaling calyx, opening by 6 teeth;

carpophore 3–4 mm.

dull gray-black, reniform, 0.5–0.8 mm diam., finely papillate.

brown, broadly reniform, 2–2.3 mm, rugose.

= 24.

= 48.