| |
| 2. Leaf oblong-ovate; ovary obovoid to spheric |
| C. angustiflora |
| 2' Leaf ± linear or lanceolate; ovary oblong |
| |
| C. griffinii |
| |
| 4. Upper leaves, bracts ± linear; ovary (hypanthium surface) hairy but not papillate |
| C. exigua |
| 4' Upper leaves, bracts widely lanceolate; ovary papillate |
| C. sharsmithiae |
| 1' Perennial, in various habitats, including dry places |
| |
| 5. Style > corolla, well exserted from it |
| |
| 6. Petiole generally < 5 mm; fruit hemispheric, cordate at base |
| C. prenanthoides |
| 6' Petiole 1020 mm; fruit obconic, tapered at base |
| C. scouleri |
| 5' Style = or < corolla, not exserted |
| |
| 7. Plant hairy throughout |
| |
| C. scabrella |
| 8' Leaf 67 mm, with few large teeth |
| C. shetleri |
| 7' Plant glabrous or hairs only on leaf margins, stem angles, sepals |
| |
| 9. Leaf margin entire; cauline leaf 3060 mm |
| C. rotundifolia |
| 9' Leaf margin ± sharply toothed or crenate; cauline leaf < 20 mm |
| |
| 10. Leaf ovate, margin crenate, with recurved, stiff hairs; corolla bell-shaped; coastal |
| C. californica |
| 10' Leaf narrowly oblong, margin with few sharp teeth, glabrous; corolla funnel-shaped; high elevations |
| C. wilkinsiana
|