Flora of North America species comparison

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

simple below flowering region, stout, 5–30 cm, pubescent, viscid-glandular, densely so distally, ciliate at nodes, hairs with purple septa.

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.

basal petiolate, tufted, petiole to length of blade, broad, blade oblanceolate, 1–8 cm × 2–8 mm, fleshy, base blunt, tapering into petiole, margins ciliate, apex ± acute, glabrous (rarely pubescent) on both surfaces;

cauline in 1–2 pairs, sessile, connate proximally, blade narrowly oblong-lanceolate, 5–30 × 1.5–5 mm, apex purple-tipped, ± acute, pubescence as in basal leaves.

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

cymose, single, terminal, congested, 1–3-flowered, bracteate, rarely with 1 or 2 flowers in axil of mid-stem leaves (occasionally branched with 2 or 3 erect, elongate branches), densely woolly with purple septate hairs of various lengths, longest equaling pedicel diam.;

bracts leaflike, lanceolate, 4–10 mm.

stout, usually much shorter than calyx, rarely to 2 times as long, or flowers sessile.

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 broadly 10-veined, ovate-campanulate, ca. 10 × 6 mm in flower, enlarging to 15 × 10 mm in fruit, base round, narrowed to ca. 1/2 its diam. at mouth, margins dentate, teeth purple, ovate-obtuse, ca. 2 mm, pubescence densely glandular, viscid, partially obscuring the broad veins;

corolla white to dingy pink, clawed, claw equaling calyx, limb obovate, 2-lobed, 3–5 mm, appendages 2, oblong, ca. 1 mm, margins crenulate;

stamens equaling petals;

styles 5, equaling petals.

equaling calyx, opening by 6 teeth;

carpophore less than 1 mm.

included in calyx, dehiscing by 5 teeth, often splitting into 10;

carpophore 1–1.5 mm.

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

brown, not winged, triangular-reniform, ca. 1 mm, spinose-papillate.

= 24.

= 72.