Limnosciadium pinnatum (A.P. de Candolle) Mathias & Constance. Arkansas Dogshade, Tansy Dogshade. Phen: May-Jul. Hab: Pond margins, ditches. Dist: S. IL, s. MO, and se. KS, south to wc. AL, MS, LA, and s. TX.

Origin/Endemic status: Native

Synonymy: = Ar, FNA, G, GrPl, GW2, Il, K3, K4, MC, Mo2, NcTx, Ok, Tx; = Cynosciadium pinnatum DC. – F; = n/a – C

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACW
• Eastern Mountains and Piedmont: FACW
• Great Plains: FACW
• Midwest: FACW

Heliophily: 7