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 Lip green or yellow (occasionally with some white), middle lobe subovate to elongate without dark purple spot; capsules to 2.5 cm long and 2 cm wide; inflorescences with up to 50 flowers