Flora of North America species comparison

erect, 5–40 cm, softly pubescent to scabrous, eglandular or viscid-glandular, especially distally, very rarely glabrous, with several pairs of leaves equaling or shorter than internodes.

subscapose, with (1–)2–3(–4) pairs of leaves, 6–25 cm, much reduced above base, retrorsely puberulent, eglandular.

sessile, or basal with short pseudopetiole;

blade linear to lanceolate or broadly ovate, base round to cuneate, apex acute to shortly acuminate, puberulent on both surfaces, sometimes glandular.

2 per node;

basal blades oblanceolate, spatulate, 1.4–4 cm × 2–5 mm, base ciliate, apex acute, subglabrous to retrorse-puberulent;

cauline shortly connate proximally, blade narrowly oblanceolate to linear-lanceolate, 0.5–3.5 cm × 1–2 mm, apex purple tinged, retrorse-puberulent, often sparsely so.

usually with single dichotomy, rarely double, open, bracteate, branches often elongate, flowers 1 per node;

bracts foliaceous.

1–3(–4)-flowered, open.

sharply reflexed at base, especially after anthesis, equaling calyx.

erect, 1–4 times longer than fruiting calyx, retrorsely puberulent, without glandular hairs.

nodding;

calyx obscurely 10-veined, broadly campanulate, lobed, 6–8 mm, enlarging to 13–16 mm in fruit, herbaceous, usually with short, dense pubescence throughout, often glandular-viscid, veins green, rarely purplish tinged, conspicuous pale commissures absent;

lobes ovate-triangular, 1/2 to equaling tube, herbaceous;

petals creamy white, often greenish abaxially, rarely pink tinged to dusky pink (subsp. campanulata), clawed, to 2 times calyx, claw villose, limb deeply divided and fan-shaped with many narrow, linear lobes, lobes rapidly curling, margins deeply divided or erose, appendages 2–4, to 2 mm;

stamens exserted;

filaments hairy at base;

styles 3, to 2 times calyx.

calyx prominently 10-veined, cylindric, becoming narrowly ovoid, not inflated, not contracted proximally around carpophore, 6–11.5 × 3 mm in flower, broadening to ca. 5 mm in fruit, membranous, uniformly puberulent, without glandular hairs, veins parallel, green, with pale commissures, lobes triangular, 1–1.5 mm, margins narrowly membranous, apex purple-tipped;

corolla white, usually flushed with pink or purple towards apex, ligulate to ± oblanceolate, slightly longer than calyx, not clearly differentiated into claw and limb, unlobed to notched, auricles and appendages absent;

stamens equaling calyx;

styles 3, included in calyx.

ovoid, ca. equaling calyx and often splitting it, opening by 6 broadly triangular teeth;

carpophore 1–2.5 mm.

ellipsoid-ovoid, slightly longer than calyx, opening by 6 ascending teeth;

carpophore ca. 1 mm.

brown, reniform, 2–2.5 mm broad, coarsely and ± evenly papillate;

papillae ca. as long as broad.

rust colored, reniform, 0.7–1 mm, margins papillate;

papillae large, inflated.