Table 1. Morphologic comparison of Caltha leptosepala from the Rocky Mountains and Coast Ranges.

	Rocky Mountains* C. leptosepala in strict sense	Coast Ranges** C. bicolor in strict sense
Leaf (L:W ratio)	0.8-2.2(-3.1)	0.4-1.5
Flower number	2-4	1-4
Stipe (mm)	0-3.2	0-2.7

*Including Alaska, Arizona, Colorado, Idaho, and Montana.

**Including British Columbia, California, Oregon, and Washington.