Senecio sanguisorboides Rydb.
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Authority
New York Botanical Garden. Herbarium of Dr. Per Axel Rydberg. Purchased, 1899. Contributions from the New York Botanical Garden.
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Family
Asteraceae
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Scientific Name
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Description
Species Description - Tall and simple, perfectly glabrous, annual or maybe biennial; stem terete, about 6 dm. high, leafy: basal leaves thin, 1-2 dm. long, petioled, pinnately divided with 3-5 segments; terminal segments reniform, 3—5 cm. wide, coarsely crenate; lateral segments almost orbicular, crenate: lower stem leaves similar; the upper with 7-11 segments, short-petioled or the uppermost subsessile; the base of the petioles with large round, laciniate auricles; terminal segment ovate, incised-crenate; the lateral ones obovate or broadly cuneate: cyme rather contracted: heads about 1 cm. high; bracts 12-16, linear-lanceolate, acute, about 1 mm. wide, with membranous margins; the calyculate ones very few and minute, lanceolate: rays about lo, 8 mm. long and 3 mm. wide, about 4-nerved: achenes glabrous and angled. This has been referred to .S". Sangiiisorbae DC; but a comparison with De Candolle's description shows several discrepancies. According to the description S. Sangiiisorbae should have only 8-10 bracts and 5 rays, the leaves should be puberulent beneath and the terminal 'segment orbicular, characters not found in the present species. The latter grows at an altitude of 2500-3000 m. [Plate 5, f. 14.]
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Discussion
New Mexico: Santa Fe Caiion, 1897, A. A. & E. Gertrude Heller, j820 (type in the herbarium of the N. Y. Botanical Garden) ; White Mountains, 1897, E. O. Wooton, 494.
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Distribution
New Mexico: Santa Fe Caiion, White Mountains.
New Mexico United States of America North America|