Flora of North America species comparison

cauline (marcescent, crowded), opposite (rarely alternate);

petiole absent;

blade oblong to ± broadly obovate, unlobed, 2–5 mm, leathery, margins entire, bristly-ciliate, with 1(–3) lime-secreting hydathodes (in pit, secretion obvious), apex obtuse, surfaces glabrous.

basal and cauline, (basal usually withered at flowering, cauline reduced);

petiole absent or present, flattened, 2–10[–20] mm;

blade spatulate or elliptic to ovate, (2–)3(–5)-lobed apically or unlobed (lobes divergent), 2–10(–23) mm, thin, margins entire, stipitate-glandular, apex obtuse, surfaces ± purple-tipped stipitate-glandular to glabrate.

solitary flowers, ebracteate, 1–5 cm, glabrate or sparsely purple-tipped stipitate-glandular.

2–10[–50]-flowered, loose thyrses or cymes, sometimes solitary flowers, 0.5–6 cm, purple-tipped stipitate-glandular;

bracts sessile or short-petiolate.

sepals erect, ovate, margins stiffly ciliate or not, surfaces hairy, stipitate-glandular, or glabrous;

petals purple to pink, rarely white, often drying violet, not spotted, obovate to elliptic, (2–)5–12(–20) mm, longer than sepals;

ovary ± superior.

sepals erect, elliptic to ovate, margins ± stipitate-glandular, surfaces adaxially ± stipitate-glandular;

petals white, not spotted, narrowly obovate to oblanceolate, 2.5–3 mm, longer than sepals;

ovary 3/4 to completely inferior.

± folliclelike.

= 22 (Europe).