Senecio tridenticulatus 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 tridenticulatus Rydb.

  • Description

    Deprecated: mb_convert_encoding(): Handling HTML entities via mbstring is deprecated; use htmlspecialchars, htmlentities, or mb_encode_numericentity/mb_decode_numericentity instead in /home/emu/nybgweb/www-dev/htdocs/science-dev/wp-content/themes/nybgscience/lib/VHMonographsDetails.php on line 179

    Species Description - Perennial with a branched caudex, in age perfectly glabrous, or slightly floccose at the base of the leaves: stems very slender, about 3 dm. high: basal leaves very narrowly oblanceolate, thick with a slender petiole, slightly 3-toothed at the apex or wholly entire, 4-8 cm. long and 4-5 mm. wide; stem leaves linear and subentire; cyme open and corymbiform; heads 7-8 mm. high; bracts lanceolate, acute 2/3 or 3/4 as long as the disk; rays light yellow, about 8 mm. long and 1-1.5 mm. wide, 3-nerved; achenes hispid-puberulent on the angles. This species differs, from the preceding in the slender stem and the open cyme, and also in the form of the leaves. The latter character also separates it from the next following. It grows in wet sandy soil. The type was growing at an altitude of 2400 m. Wright's specimens are past blooming, and good characters could not be taken from them, wherefore I have made Sheldon's specimens the type. The latter were mixed with some of the next. [Plate 5, f. 12.]

  • Discussion

    Colorado : Cottonwood Creek, Buena Vista, 1892, C. S. Sheldon (type in the herbarium of N. Y. Botanical Garden). Texas: Mountams beyond the Limpia, 1849, Wright, 403.

  • Distribution

    Colorado : Cottonwood Creek, Buena Vista, 1892, C. S. Sheldon (type in the herbarium of N. Y. Botanical Garden). Texas: Mountams beyond the Limpia, 1849, Wright, 403.

    Colorado United States of America North America| Texas United States of America North America|