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 Plants with stipitate-glandular trichomes as well as stinging trichomes; fruiting pedicels lacking lateral wings
1 Plants with stinging trichomes only; fruiting pedicels laterally-winged