Flora of North America species comparison

basal (sometimes cauline on trailing stems), (closely imbricate);

petiole absent;

blade round to broadly obovate, unlobed, 1–4 mm, ± fleshy, margins entire, stiffly bristly-ciliate, apex obtuse or rounded, surfaces glabrous.

cauline, (marcescent, crowded proximally);

petiole absent;

blade (often reddish), linear to cuneate, 1–3-lobed or -toothed apically (distal cauline unlobed), rarely all unlobed, (lobes long spinose-mucronate), 5–20 mm, leathery, margins entire, softly glandular-ciliate, (nonsecreting hydathodes present adaxially), apex acute, long spinose-mucronate, surfaces glabrous.

solitary flowers, to 1 cm, glabrous;

bracts sessile.

3–10-flowered cymes, 4–10(–24) cm, white to sparsely pink- to purple-tipped stipitate-glandular;

bracts sessile.

unisexual (plants dioecious);

sepals spreading in flower, reflexed in fruit, (purple), triangular to ovate, margins ciliate, surfaces hairy;

petals yellow, drying cream to brown, not spotted, linear to oblanceolate, 1–2.5 mm, ± equaling sepals;

ovary superior.

sepals erect to ascending, (sometimes purplish), triangular-ovate, margins ± glandular-ciliate, surfaces white to purple-tipped stipitate-glandular;

petals white to cream, proximally to distally yellow-, orange-, and red-spotted, elliptic to ovate, 4–7 mm, much longer than sepals;

ovary superior.

= 12.

= 26.