| 1. Leaf generally 1; flowers generally < 4; hypanthium generally > 2 × calyx lobes; South Coast, Peninsular Ranges, Baja California |
| J. parryi |
| 1' Leaves generally 23; flowers generally > 4; hypanthium < 1.5 × calyx lobes; Channel Islands or c Sierra Nevada Foothills |
| |
| 2. Petals withering; peduncle red-pink; seeds pale brown; c Sierra Nevada Foothills |
| J. heterandra |
| 2' Petals persistent but not withering; peduncle ± green; seeds dark brown; Channel Islands |
| J. malvifolia
|