154 PENTANDRIA, TRIGYNIA. 



Smooth Shumach. - 



Berries red. Not so common as No. 1, but grows in similar 

 places. Both species are handsome shrubs, particularly in 

 fruit. \i . July, August. 



Vernix. 



3. R. very glabrous; leaflets oval, abruptly acu- 

 minate, entire, panicle diffuse; flowers dioi- 

 cous. — Pursh. 



Icon. Dill. elth. t. 292. f. 377. Pluk. aim. t. 

 145. f. 1. 



Poison Shumach, Swamp Shumach. Poisonous 



Elder. 



A very poisonous arborescent species, known well by the 

 above names, and its effects on those who go within the 

 sphere of its influence. In deep swampy thickets in Jersey, 

 not uncommon. In the swamp near Kaign's point, abund- 

 ant Berries white. \ . July. 



Toxieoden- 4. R. stem erect, weak; leaves sinuate, lobed and 

 entire, tomentose underneath ; flowers dioicous. 

 —Elliott. 

 Variety, & quercifolium, Mich. 



Poison Oak. 



From two to five or seven feet high. Likewise well known 

 as a poison. Berries white. In woods, fields, and especially 

 along fences among green-briar and bramble, common. lj . 

 June, July. 



radicans. 5. R. leaves ternate; leaflets pctiolate, ovate, gla- 

 brous, generally entire; stem radicant; flowers 

 dioicous. — Elliot. 

 R. toxicodendron, var. «*. Mich. 



Poison Vine. 



No plant is more generally known than this. It is extreme- 

 ly poisonous. Berries white. Grows with No. 3, and particu- 

 larly common along fences. Nos. 1, 2, 3, and 5, are possessed 

 of medicinal virtues, b . June, July. 



