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 Leaves 1.5-6× as long as wide, the margins plane or undulate; pedicels slender, 3-30 mm long (or stout and 0-3 mm long in N. stenocarpa); stems prostrate, decumbent to ascending.
....3 Styles fused for some portion of length, not easily teased apart; corolla 5-7 mm long, white to pale pink.
......4 Leaf bases decurrent down the stem as a wing; leaves broadly elliptic to ovate or spatulate, margins plane; pedicels to 15 (-30) mm