Endotropis lanceolata (Pursh) Hauenschild. Lance-leaved Buckthorn. Phen: Apr-May. Hab: Dry to moist thickets and woodlands over calcareous rocks, bottomland hardwood forests. Dist: PA west to WI and SD, south to AL and TX.

Origin/Endemic status: Native

Taxonomy Comments: Two varieties with partial geographic separation are sometimes recognized. Var. lanceolata ranges from PA south to AL, mostly in the Appalachians, and has young leaves and young branches pubescent and mature leaves soft pubescent below. Var. glabrata Gleason ranges from OH west to SD, south to w. VA (Ludwig 1999), KY, c. TN, AR, and KS, and has young leaves and young branches glabrous or with scattered hairs and mature leaves glabrous below. Johnston (1975) did not recognize infraspecific taxa, Yatskievych (2013) states that "intermediate plants are relatively widespread in the midwestern states", and Nesom & Sawyer in FNA (2016) state that "plants with hirtellous-pubescent stems and leaves … are more restricted in distribution than glabrous plants, but the distinction often seems arbitrary".

Synonymy: = Rhamnus lanceolata Pursh – Ar, FNA12, Pa, S, S13, Tn, Tx, W, WV, Johnston (1975); > Endotropis lanceolata (Pursh) Hauenschild ssp. glabrata (Gleason) Hauenschild – Hauenschild et al (2016c); > Endotropis lanceolata (Pursh) Hauenschild ssp. lanceolata – Hauenschild et al (2016c); > Rhamnus lanceolata Pursh ssp. glabrata (Gleason) Kartesz & Gandhi – K1, K3, K4, NcTx; > Rhamnus lanceolata Pursh ssp. lanceolata – K1, K3, K4; > Rhamnus lanceolata Pursh var. glabrata – C, F, G, GrPl, Il, Va, Brizicky (1964a); > Rhamnus lanceolata Pursh var. lanceolata – C, F, G, Il, Va, Brizicky (1964a); > Ventia lanceolata ssp. glabrata (Gleason) Hauenschild – Hauenschild et al (2016b); > Ventia lanceolata ssp. lanceolata – Hauenschild et al (2016b)

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FAC (name change)
• Eastern Mountains and Piedmont: FAC (name change)
• Great Plains: FAC (name change)
• Midwest: FACW (name change)
• Northcentral & Northeast: FACW (name change)

Heliophily: 6