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 Cladophylls (“leaves”) flattened, 1-2 mm wide
..2 Flowers in 1-3-flowered axillary racemes; berries 6-10 mm long, red; erect herb (sometimes arching in age)
..2 Flowers in 1-4-flowered terminal umbels; berries 4-5 mm long, purplish-black; scrambling vine