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Key to Anacis
https://fsus.ncbg.unc.edu/main.php?pg=show-key.php&keyid=41156
1 Leaves (all) simple, the larger with 3 (-5 or more) lobes, but the leaf tissue al connected, not separated into separate leaflets); [IN, IL, MO, AR, and LA westwards] | |
1 Leaves (at least the larger, better developed, and lower on the stem) palmately or pinnately compound or 1-2× divided into separate leaflets or narrow divisions; [collectively widespread in our region]. | |
3 Leaves palmately compound, the leaflets simple to lobed or pinnatifid, the total number of leaflets or divisions (3-) 5-25, the middle leaflet of median leaves 0.5-7 mm wide. | |
4 Leaflets pinnatifid, the total number of leaflets or divisions 11-25 or more per leaf, the segments of median leaves 0.2-2 (-2.5+) mm wide. | |