Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.
| 1 Tree or large shrub; fruit a berry |
| 1 Herb; fruit a capsule. |
| ..2 Corolla funnelform, 0.1-0.2 cm long, white; [tribe Loganieae] |
| ..2 Corolla tubular, 3-6 cm long, red and yellow; [tribe Spigelieae] |