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Packera fendleri is a species of flowering plant in the family Asteraceae known by the common name Fendler's ragwort. It is native to the southern Rocky Mountains , and is found in the states of Colorado , Wyoming and New Mexico , where it is a common plant that occurs in a variety of habitats. [ 1 ]
Packera greenei is a species of flowering plant in the aster family known by the common name flame ragwort. It is endemic to northern California , where it is known from the North Coast Ranges and southern Klamath Mountains .
Packera dubia, synonym Packera tomentosa, is a species of flowering plant in the composite family. [1] It is known by the common name woolly ragwort.It is native to the Southeastern United States, primarily to the coastal plain but extending into some areas inland. [2]
Packera is a genus of about 75 species of plants in the daisy family, Asteraceae. [1] Most species are commonly called ragworts or grounsels. Its members were previously included in the genus Senecio (where they were called aureoid senecios by Asa Gray), but were moved to a different genus based on chromosome numbers, a variety of morphological characters, and molecular phylogenetic evidence.
Ragwort is a food plant for the larvae of Cochylis atricapitana, Phycitodes maritima, and Phycitodes saxicolais. Ragwort is best known as the food of caterpillars of the cinnabar moth Tyria jacobaeae. They absorb alkaloids from the plant and become distasteful to predators, a fact advertised by the black and yellow warning colours.
The seedlings of S. ampullaceus often have a purplish color on the undersides of their leaves in the winter, especially along their midrib. [3] Flowering in early–mid spring, [7] Texas ragwort is a tall annual, [8] growing to from 20 centimeters (7.9 in) to 80 centimeters (31 in) tall and similar to S. quaylei.
Packera franciscana (syn. Senecio franciscanus) is a rare species of flowering plant in the aster family known by the common name San Francisco Peaks groundsel, or San Francisco Peaks ragwort. It is endemic to Arizona in the United States, where it is known only from the San Francisco Peaks in Coconino County .
Packera macounii is a species of flowering plant in the aster family known by the common name Siskiyou Mountains ragwort. It is native to the west coast of North America from British Columbia to far northern California , where it grows in chaparral and mountain forests, often on serpentine soils .