| 1. Free portion of bractlets lanceolate, petals 2.54.5 cm; native |
| L. assurgentiflora |
| 1' Free portion of bractlets ovate to round; petals 12 cm; alien |
| |
| 2. Involucre > calyx; leaves densely soft-downy; stem base woody |
| L. arborea |
| 2' Involucre < calyx; leaves sparsely hairy; stem base not woody |
| L. cretica
|