| 1. Inflorescence severalmany-flowered, appearing June-September |
| C. ligusticifolia |
| 1' Inflorescence 13-flowered, appearing January-June |
| |
| 2. Fruit body hairy; sepal hairy on both surfaces |
| C. lasiantha |
| 2' Fruit body glabrous; sepal hairy only on lower surface |
| C. pauciflora
|