Senecio idahoensis Rydb.

  • 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 idahoensis Rydb.

  • Description

    Species Description - Stout perennial, in age glabrate or slightly floccose at the base of the leaves: stem 4-5 dm. high, branched, striate, tinged with purplish: basal leaves obovate, serrate: lower stem leaves oblanceolate in outline, about 1 dm. long, petioled; the upper ovate or lanceolate in outline, sessile and auricled at the base; all bluish-green, pinnately divided into oblong or oblique-cuneate incised segments: heads numerous, about 1 cm. high; bracts about 25, very narrowly linear, equaling the disk: rays none: achenes striate, glabrous. A species somewhat related to 5. aureus, but characterized by its broad and laciniate leaves, rayless heads and numerous very narrow bracts. [Plate 6, f 5.]

  • Discussion

    Idaho : Granite Station, 1892, Sanelberg, McDougal & Heller, 80J (type in the N. Y. Botanical Garden herbarium).

  • Distribution

    Idaho

    Idaho United States of America North America|