. 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. A plant described as Eupatorium perfoliatumcimeatum Engelm., with leaves smaller, narrowedand separated at the base, from Arkansas and Mis-souri, is probably a hybrid with E. serotinum. 17. Eupatorium resinosum Torn ResinBoneset. Fig. 4168. E. resinosum Torr. DC. Prodr. 5 : 176. 1836. Slender, finely pubescent and resinous, 2°-3°high, branched at the summit, the inflorescence
. 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. A plant described as Eupatorium perfoliatumcimeatum Engelm., with leaves smaller, narrowedand separated at the base, from Arkansas and Mis-souri, is probably a hybrid with E. serotinum. 17. Eupatorium resinosum Torn ResinBoneset. Fig. 4168. E. resinosum Torr. DC. Prodr. 5 : 176. 1836. Slender, finely pubescent and resinous, 2°-3°high, branched at the summit, the inflorescencecomparatively small, 3-4 broad. Leaves op-posite, closely sessile, clasping, or slightly con-nate-perfoliate at the base, linear-lanceolate,long-acuminate, sharply serrate, 3-6 long,3-6 wide, roughish above, canescent beneath ;heads iQ-15-flowered; involucre campanulate,about 2 high, its bracts oblong, obtuse, in 2or 3 series, the outer shorter; flowers white. In wet pine-barrens of New Jersey. 18. Eupatorium urticaefolium Snake-root. Fig. 4169. E. urticaefolium Reichard, Syst. 3: 719. ageratoides L. f. Suppl. 355. boreale Greene, Rhodora 3: 83. 1901. Glabrous or villous
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
