Flora of North America species comparison

alternate, except the proximal-most;

petiole 0.5–1.5(–2) cm;

blade green on both sides, ovate to oblong or lanceolate to oblong, deltoid-oblong, or linear, 9–100 × 1–50 mm, base mostly rounded to tapering or more rarely broadly cuneate from a hastate base, margin entire or repand denticulate, apex acute or acuminate or more rarely obtuse, glabrous or nearly so.

short petiolate;

blade elliptic to narrowly oblong or narrowly hastate with short divaricate basal lobes, 10–25 mm, margin entire or remotely dentate, apex obtuse to acute.

glomerate in rather loose, spiciform inflorescences, and in axillary clusters; staminate ones 4–5-merous.

in compact glomerules 5 mm thick, forming terminal spikes.

in axillary clusters and forming short, dense terminal spikes.

dimorphic: some small, black (lacking? in var. alaskensis), convex, 1.5–2 mm wide, lustrous, others pale brown, flat, 1.5–3.5 mm wide;

radicle inferior or subascending.

circular.

bracteoles darkening at maturity, sessile or stipitate, ovate or oblong to orbiculate, longest ones strap-shaped or ovate-lanceolate, mainly 4–10 mm, distinct nearly to base, margin entire or with (1 or) 2 or more teeth, apex acuminate to acute, often bulging on both sides of the impressed midnerve, at first mealy, finally glabrate.

bracteoles somewhat rhombic to semicircular, biconvex, 4–6 mm wide, with a short hard turbinate base, thick and hard throughout or with a herbaceous margin, lacking appendages.

= 54.