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 Perigynia 3-4.5 mm long, the lower shorter than their subtending scales; culms often with basal spikes|
|1 Perigynia 4-6 mm long, all exceeding their subtending scales; culms without basal spikes.|
|..2 Perigynia densely white-villous apically, glabrous basally; achene body 2.0-2.7 mm long, long-stipitate|
|..2 Perigynia puberulent throughout; achene body 3.0-3.3 mm long, sessile|