. An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian . Rhus radicans L. Sp. PI. 266. 1753- Rhus Toxicodendron of American authors, in part, not L. Toxicodendron vulgarc Mill. Gard. Diet. Ed. Jd. Nc icl. 689. ^ Rhus microcarpa Ste T. radicans Kuntze, Rev. Gen. 153. 1891. A woody vine, climbing by numerous aerial rootlets, or erect and bushy, the stem sometimes 3'-4' in diameter. Leaves petioled, 3-folioIate. glabrate or somewhat
. An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian . Rhus radicans L. Sp. PI. 266. 1753- Rhus Toxicodendron of American authors, in part, not L. Toxicodendron vulgarc Mill. Gard. Diet. Ed. Jd. Nc icl. 689. ^ Rhus microcarpa Ste T. radicans Kuntze, Rev. Gen. 153. 1891. A woody vine, climbing by numerous aerial rootlets, or erect and bushy, the stem sometimes 3'-4' in diameter. Leaves petioled, 3-folioIate. glabrate or somewhat pubescent, especially beneath ; leaflets ovate or rhombic, 1-4' long, entire or sparingly dentate or sinuate, acute or short-acumi- nate at the apex, the lateral sessile or short-stalked, inequilateral, the terminal one stalked, rounded or narrowed at the base; flowers green, \l" broad, in loose panicles, 1-3' long; fruit similar to that of the preceding, ii"~2i" in diam- eter, glabrous, or sparingly pubescent. Thickets and along fences, etc., often as- cending high trees, Nova Scotia to British Columbia, Florida, Arkansas, Texas and Mexico. Bermuda; Bahamas. Very poison- ous. Consists of many races, differing in habit, shape of leaflets and pubescence. Trailing or climbing sumac. Mercury. Black mercury-vine. Markry. Mark-weed. Picry. May-June, upright shrub with thicker leaves and larger nd North Dakota. 3. Toxicodendron Toxicodendron p/t*^ (L.) Britton. Poison Oak. f . (/-\ Fig. 2783. ^^ ^ ^ ] Rhus Toxicodendron L. Sp. PI. 266. 1753- T. pubescens Mill. Gard. Diet. Ed. 8, no. 2. 1768. R. Toxicodendron quercifolium Michx. Fl. Bor. Am. i: 183. 1803. R. quercifolia Steud. Nomencl. 689. .^s syno- A low branching shrub, 3° high or less, spreading by underground branches, the young shoots densely pubescent. Leaves long-petioled, 3-foliolate; leaflets ovate to obovate in outline, firm in texture, dark green and sparingly pubescent above, paler green and dens
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
