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 Plant to 6 dm tall, branched; inflorescence a panicle; corollas white or lavender, the tube 25-40 mm long, very narrow and barely expanding from base to opening; [western edge of our region only, in c. OK]
1 Plant to 20 dm tall, unbranched; inflorescence a raceme; corollas bright scarlet red (rarely yellow), narrow but gradually broadening towards the opening; [rather widespread in our region]