Flora of North America species comparison

basal and cauline, (basal persistent, compact);

petiole absent (cuneate base ± petiolelike);

blade oblanceolate to obovate, (2–)3(–5)-toothed or shallowly lobed apically, rarely unlobed (distal often so), (lobes forwardly directed), (2–)4–15 mm, slightly fleshy, margins entire, stipitate glandular-ciliate, apex obtuse, surfaces glabrate to stipitate-glandular.

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.

(2–)6–15(–40)-flowered thyrses, (1–)4–25 cm, densely purple-tipped stipitate-glandular;

bracts sessile.

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, (usually reddish purple), ovate or triangular to oblong, margins stipitate glandular-ciliate, surfaces stipitate-glandular;

petals white, not spotted, obovate to oblanceolate, (2–)3–6 mm, equaling or longer than sepals;

ovary inferior.

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.

= 22.

= 22 (Europe).