Flora of North America species comparison

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

decumbent to ascending, scarcely branched, weak, leafy, with several basal, procumbent, nonflowering shoots, 10–40 cm, softly pilose.

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.

2 per node, blade 2–9 cm × 10–25 mm;

proximal petiolate, petiole ciliate, blade broadly oblanceolate;

distal sessile, blade obovate to elliptic or lanceolate, spatulate, margins ciliate, apex acute or obtuse, apiculate, glabrous to sparsely pilose.

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

terminal, cymose, usually 3-flowered, open, bracteate;

bracts foliaceous.

shorter than calyx, pilose, with colorless, large, stipitate glands.

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 prominently 10-veined, funnelform, umbilicate in fruit, constricted around carpophore, 20–28 × 5–9 mm, broadening distally, papery, thinly pilose, veins parallel, green, with pale commissures, lobes lanceolate, 4–7 mm, apex acute;

corolla showy, pink or white, large, clawed, claw equaling calyx, limb fan-shaped, 15–25 mm, laciniate into many narrow segments, appendages absent;

stamens equaling calyx;

stigmas 3(–4), equaling calyx.

equaling calyx, opening by 6 teeth;

carpophore less than 1 mm.

ovoid, included in calyx, opening by 6 (or 8) teeth;

carpophore 7–10 mm.

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

dark reddish brown, broadly reniform, ca. 1 mm, rugose on sides, margins papillate.

= 24.

= 48.