Key to The Species Leaflets 3, oblong to obovate, 5-30 mm. broad. ……. 1. C. ternata. Leaflets linear, 1-4 mm. broad. Pubescence of the pedicels consisting of minute, appressed hairs. Leaflets usually 3-5, rarely 6-7, commonly 2.7-5 cm. long; petioles one-third as long as the leaflets or shorter ….. 2. C. arizonica. Leaflets usually 8-13, rarely 6 or 7, 1-4 cm. long; petioles always more than half as long as the leaflets, often eqnaling them. …… ….. 3. C. dumosa. Pubescence of the pedicels consisting of slender, spreading hairs. Leaflets 3-5, 2-4 mm. wide, conspicuously broadest at or above the middle, the margins plane or nearly so, repand-denticulate. … ….. 4. C. mollis. Leaflets usually, 7-11, rarely 5, 1.3 mm. wide or narrower, of uniform width throughout, the margins strongly revolute, entire or nearly so …. 5. C. palmeri.