UW Burke Herbarium species comparison

Leaves with sheathing stipules, petiolate, numerous, highly variable, the blades 2-4 cm. long, linear to ovate, usually with spreading, basal, triangular lobes.

Leaves with sheathing stipules and the lower with a slender petiole, becoming sessile above; leave blades oblong to oblong-lanceolate, up to 10 cm. long, at least the lower saggitate-based.

Inflorescence an open, leafless, reddish, narrow panicle;

flowers imperfect;

pedicels slender, longer than the flowers, jointed immediately under the flower;

perianth about 1 mm. long, erect, only slightly larger than the fruit and closely investing it;

styles 3.

Inflorescence a large, leafless, reddish panicle;

pedicels very slender, about the same length as the perianth, jointed at mid-length;

flowers imperfect; outer 3 perianth segments 1.5 mm. long, becoming strongly reflexed; inner 3 segments 3.5 mm. long, erect, with a very small lump at the base;

styles 3.

Achene smooth.

Achene 2.5 mm. long, smooth.