1. Northern Comandra: Comandra livida - Flowers either single or more typically in three's or occasionally four in the upper leaf axils. Calyx flared, the lobes as wide as tall with disc nearly flat. Fruit red. Found from Alaska south to Okanogan County, WA and east across northern Idaho to northern Michigan, New York, New Hampshire and Labrador.

2. Common Bastard Toad-flax, Comandra: Comandra umbellata var. californica - Flowers in terminal to subterminal clusters of more than 4 flowers. Calyx segments longer than wide. The hypanthium is bell-shaped or funnel-like. Calyx lobes ovate to ovate-lanceolate, measuring 2-2.5 mm long.

3. Pale Bastard Toad-flax, Pale Comandra: Comandra umbellata var. pallida - Flowers in terminal to subterminal clusters of more than 4 flowers. Calyx segments longer than wide. The hypanthium is bell-shaped or funnel-like. Calyx lobes narrowly lanceolate, measuring from 3-4 mm long.