. 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. Senecio pseudaureus Rydb. (.S. semi-cordatus Mac- kenzie & Bush), of the Rocky Mountain region, differing by elliptic or broadly oblong basal leaves, ranges east- ward into North Dakota and Missouri. 17. Senecio discoideus (Hook) Britton. Northern Squaw-weed. Fig. 4626. Senecio aureus var. discoideus Hook. Fl. Bor. Am. 1: 333- i833- Senecio discoideus Britt
. 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. Senecio pseudaureus Rydb. (.S. semi-cordatus Mac- kenzie & Bush), of the Rocky Mountain region, differing by elliptic or broadly oblong basal leaves, ranges east- ward into North Dakota and Missouri. 17. Senecio discoideus (Hook) Britton. Northern Squaw-weed. Fig. 4626. Senecio aureus var. discoideus Hook. Fl. Bor. Am. 1: 333- i833- Senecio discoideus Britton, in Britt. & Brown, 111. Fl. 3: 479. 1898. Perennial, glabrous except for small tufts of wool in the axils of the lower leaves; stem rather stout, i°-24° tall; basal leaves oval to ovate, obtuse, thin, sharply dentate, abruptly narrowed into petioles longer than the blade; stem leaves few, small, more or less laciniate; heads few or several, slender- peduncled, corymbose; principal bracts of the invo- lucre narrowly linear, 3"-5" long, the short outer ones few or none; rays none; achenes glabrous. In moist places, Labrador to Yukon, Quebec, Michi- gan, Wyoming and British Columbia. 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
