Flora of the Southeastern United States
2022 Edition

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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.

Key to Waldsteinia

1 Leaves trilobed (the sinuses cleft 1/4 to 3/4 the way to the midrib); leaves rather densely pubescent with stiff hairs, these distributed on the veins and on the intervein surfaces; [of a small area at the southern terminus of the Southern Appalachians in n. GA, nw. SC, and sw. NC)
1 Leaves trifoliolate (fully divided), and also typically additionally lobed; leaves sparsely pubescent with stiff hairs, these distributed mostly or strictly on the veins, the intervein surfaces glabrous to very sparsely pubescent; [more widespread].
..2 Petals 2.5-4 mm long (about as long as the sepals), 1-1.5 mm wide; [of VA and KY southward]
..2 Petals 4-10 mm (longer than the sepals), 2-7 mm wide; [of n. NC and KY northward; also perhaps a naturalizing alien]
....3 Sepals without bractlets; petals 2-5 (-6) mm wide, not overlapping or overlapping adjacent petals slightly; [native]
....3 Sepals with bractlets about 1/3-1/2 as long as the sepals; petals 4-7 mm wide, strongly overlapping adjacent petals; [alien, horticultural plant]