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1 Leaf margins entire; leaves 0.1-1.0 (-1.8) cm long, the 2 leaves of a pair slightly to strongly unequal in size. | |
2 Plant erect to ascending; achenes 0.5-1.1 mm long. | |
3 Shrubs or subshrubs, stems to 5 dm long; leaves obovate to orbiculate, the smaller leaves of each pair typically cordate at the base; achene surfaces pebbled; [FL peninsula] | |
1 Leaf margins dentate; leaves 2-13 cm long, the 2 leaves of a pair equal in size. | |
4 Leaves planar to slightly rugose (the 'topography' of the leaf < 1 mm high); leaves green, not variegated; [natives, collectively widespread in our region]. | |
5 Achenes 1.5-2× as long as broad, smooth, green or light brown, with slightly raised dark to black lines and mottlings; leaves usually shiny; odor of fresh achenes acrid, "burnt peanut buttery" | |
4 Leaves strongly rugose, the areas between secondary and tertiary veins strongly raised (the 'topography' of the leaf > 1 mm high); leaves green or variegated with silver and/or brown; [cultivated ornamentals, rarely found as waifs] | |