Senecio oblanceolatus Rusby

  • Authority

    New York Botanical Garden. Herbarium of Dr. Per Axel Rydberg. Purchased, 1899. Contributions from the New York Botanical Garden.

  • Family

    Asteraceae

  • Scientific Name

    Senecio oblanceolatus Rusby

  • Description

    Species Description - Perennial with several stems from a strong root, in age glabrous or rarely slightly floccose at the base of the leaves: stems short and stout, about 2 dm. high: basal leaves oblanceolate, thick and fleshy, 4-6 cm. long, obtuse, crenate with entire long tapering bases or the first subentire: stem leaves similar or reduced and linear in outline: cyme corymbiform, not compact: heads about 8 mm. high; bracts linear acute, yellowish green; the calyculate ones minute and few: rays 5-6 mm. long and about 1.5 mm. wide, 4-nerved: achenes minutely scabrous on the angles. This species has also been included in 5. aureus compactiis, but lacks the dense inflorescence of S. compactiis as here understood. The stem leaves never show any indication of being pinnatifid with narrow lobes as in that species. .S. covipactus is a plant of the Great Plains, while 6". oblanccolaUis is a mountain plant growing at an altitude of 1800-3000 m. [Plate 5, f 9.]

  • Discussion

    Colorado: Como, South Park, 1895, C. S. Crandall (type in the herbarium of N. Y. Botanical Garden) ; El Paso County, 1897, A. A. & E. Gertrude Heller, 3308 ; Cottonwood Creek, Buena Vista, 1892, C. S. Sheldou.

  • Distribution

    Colorado: Como, South Park, 1895, C. S. Crandall (type in the herbarium of N. Y. Botanical Garden) ; El Paso County, 1897, A. A. & E. Gertrude Heller, 3308 ; Cottonwood Creek, Buena Vista, 1892, C. S. Sheldou.

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