. 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. Motherwort. native of arctic AmericaGreen ginger. July-Oct. Artemisia elatior (T. & G.) Rydb., a northwesternspecies, with elongated acuminate leaf-lobes, rangeseastward to Hudson Bay. 14. Artemisia pontica L. Roman or Him- garian Wormwood. Fig. 4584. Artemisia pontica L. Sp. PI. 847. 1753. Perennial; stem branched, glabrous or canescent,i°-3° high. Leaves ii-2h long, 2-3-pin
. 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. Motherwort. native of arctic AmericaGreen ginger. July-Oct. Artemisia elatior (T. & G.) Rydb., a northwesternspecies, with elongated acuminate leaf-lobes, rangeseastward to Hudson Bay. 14. Artemisia pontica L. Roman or Him- garian Wormwood. Fig. 4584. Artemisia pontica L. Sp. PI. 847. 1753. Perennial; stem branched, glabrous or canescent,i°-3° high. Leaves ii-2h long, 2-3-pinnately dis-sected into short narrow lobes less than i wide,canescent on both sides, or tomentose beneath, thelower petioled and the petioles somewhat claspingor auricled at the base, the upper mostly linear andentire; heads numerous. i-2 broad, drooping,slender-peduncled; involucre hemispheric, canes-cent, its bracts oblong or obovate, obtuse, the outershort, lanceolate; receptacle glabrous; central flow-ers fertile. Waste grounds, Massachusetts, New Jersey, Pennsyl-vania, Ohio and Colorado. Fugitive or adventive fromcentral Europe. July-Aug. 13. Artemisia vulgaris L. Common Mug-wort. Fig. 4583. Artemisia vu
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
