. 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 . 5. Heuchera americana L. Alum-root. Fig. 2177. Heuchera americana L. Sp. PI. 226. 1753. Stem rather stout, z'-f high, leafless, more or less glandular-hirsute. Basal leaves long- petioled, 3-4' wide, with 7-9 rounded crenate- dentate lobes, the older ones glabrous, or with scattered hairs on the upper surface; flowering calyx broadly campanulate, nearly regular, i?"-3&q
. 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 . 5. Heuchera americana L. Alum-root. Fig. 2177. Heuchera americana L. Sp. PI. 226. 1753. Stem rather stout, z'-f high, leafless, more or less glandular-hirsute. Basal leaves long- petioled, 3-4' wide, with 7-9 rounded crenate- dentate lobes, the older ones glabrous, or with scattered hairs on the upper surface; flowering calyx broadly campanulate, nearly regular, i?"-3" long; petals very small, greenish, usually not exceeding the calyx-lobes; stamens much exserted; anthers orange. In dry or rocky woods, Ontario to Connecticut, west to Minnesota, south to Alabama and Louisi- ana. Ascends to 3000 ft. in Virginia. American "e. Common alum-root. May-Aug. Heuchera lancipetala Rydb., from Kentucky, has a leafless flower-stem as in H. americana; but the petals are much longer than the calyx-lobes.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
