. 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 102d meridian. Botany; Botany. 26. Helianthus tuberosus L. choke. Earth Apple. Jerusalem Arti- Fig. 4486. Helianthus tuberosus L. Sp. PI. 905. 1753. Helianthus tuberosus subcanescens A. Gray, Syn. Fl. 1: Part 2, 280. 1884. Perennial by fleshy thickened rootstocks, bearing tubers; stems hirsute or pubescent, branched above, 6°-i2° high. Leaves ovate or ovate-oblong, rarely ovate-lanceolate, f
. 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 102d meridian. Botany; Botany. 26. Helianthus tuberosus L. choke. Earth Apple. Jerusalem Arti- Fig. 4486. Helianthus tuberosus L. Sp. PI. 905. 1753. Helianthus tuberosus subcanescens A. Gray, Syn. Fl. 1: Part 2, 280. 1884. Perennial by fleshy thickened rootstocks, bearing tubers; stems hirsute or pubescent, branched above, 6°-i2° high. Leaves ovate or ovate-oblong, rarely ovate-lanceolate, firm, 3-nerved near the base, nar- rowed, or the lower rounded, truncate or subcordate at the base, acuminate at the apex, rather long- petioled, scabrous above, finely pubescent or canes- cent beneath, serrate, 4'-8' long, ii-3' wide, the up- per alternate, the lower opposite; heads several or numerous, 2-34' broad; involucre hemispheric, its bracts lanceolate, acuminate, hirsute or ciliate, squar- rose ; disk yellow; rays 12-20; chaff of the receptacle acute and pubescent at the summit; achenes pubescent. In moist soil, Nova Scotia and Ontario to Manitoba, Georgia and Arkansas and Kansas. Often occurs along roadsides in the east, a relic of cultivation by the abo- rigines. Now extensively grown for its edible tubers. Canada potato. Girasole. Topinambour. RIDAN Adans. Fam. PI. 2: 130. 1763. [Actinomeris Nutt. Gen. 2: 181. 1818.] Rough-pubescent, rather coarse, herbs with alternate or opposite, simple, more or less toothed leaves, usually decurrent on the stem and branches, and corymbose, radiate or discoid Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Britton, Nathaniel Lord, 1859-1934; Brown, Addison, 1830-1913. New York, Scribner
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
