Senecio aurellus 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 - Perennial with a short rootstock, somewhat floccose when young, soon glabrate: stem striate, 4-5 dm. high: basal leaves spatulate or cuneate, dentate-serrate, about 5 cm. long, with a short petiole, soon glabrous: lower stem leaves long-petioled, cuneate or spatulate, lyrately lobed, the upper narrowly oblanceolate and subsessile, slightly auricled at the base: cyme compound but with rather few heads, which are about 8 mm. high: bracts 12-16, glabrous, yellowish-green, lanceolate, thin; calyculate ones minute, lanceolate: rays golden-yellow, 5-6 mm. long and 2 mm. wide, 4-nerved: achenes scabrous hispidulous on the angles. In the form of the stem leaves this most resembles, perhaps, S. rosidatiis, but these are thinner and perfectly green, only slightly floccose when young. Otherwise it is intermediate between the eastern S. Balsamitae and S. multilobatus. The type was determined by Professor Greene as S. pseudaureus Rydb., not typical." To that species it does not have any close relationship. [Plate 6, f 12, 12a.]
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Discussion
Colorado: Mancos, 1898, Baker, Earle & Tracy, 998 (type in the herbarium of New York Botanical Garden).
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Distribution
Colorado
Colorado United States of America North America|