OregonFlora species comparison

up to 15 cm long.

up to 1.5 cm long.

absent.

absent.

floating on the surface, elliptic to obovate; (1)2–5(8) mm long, 1.3–2 times longer than wide, generally in clusters of 2 or 3 (sometimes many);

veins 3(5); if more than 3 then the outer veins branching from inner veins;

lower surface flat, green, rarely reddish near the root attachment;

upper surface flat, green (sometimes reddish); and smooth.

floating on the surface, widely elliptic to oblong or obovate; (0.8)1– 2.5(4) mm long, 1–2 times longer than wide, slightly thicker in the middle with thinner margins, 1 vein, often faint; less than 67% the distance from root attachment to apex;

lower surface flat, green;

upper surface flat, green; and usually smooth, sometimes with papillae along the midline, generally in clusters of 2 (sometimes 4).