Flora of North America species comparison

basal and cauline, (basal persistent, cauline ± inconspicuous);

petiole rounded, 2–20 mm;

blade round to reniform, irregularly shallowly lobed, 20–80(–100) mm, thin, margins serrate, stipitate glandular-ciliate, apex obtuse to rounded, surfaces sparsely hairy.

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.

30+-flowered, open, much-branched thyrses, usually some or all flowers replaced by bulbils (sometimes bulbils absent), 15–40 cm, dark purple-tipped stipitate-glandular;

bracts (± inconspicuous), petiolate or sessile.

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

bracts sessile.

sepals reflexed (at least in fruit), ovate to elliptic, margins eciliate, surfaces sparsely stipitate-glandular or glabrous;

petals white, not spotted, narrowly ovate to elliptic, (3–)4–6 mm, longer than sepals;

filaments strongly club-shaped;

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.

= 36, ca. 48, 50.

= 26.