Cudweed Plant Information
Cudweed grows in the following 37 states:Alaska, Arizona, Colorado, Connecticut, District Of Columbia, Idaho, Illinois, Indiana, Kansas, Kentucky, Maryland, Minnesota, Montana, Nebraska, New Hampshire, New Mexico, Pennsylvania, South Dakota, Utah, Vermont, Wisconsin, Wyoming, Oregon, West Virginia, California, Delaware, Maine, Massachusetts, Michigan, Nevada, New Jersey, New York, North Dakota, Ohio, Rhode Island, Virginia, Washington
Cudweeds are important foodplants for American painted lady caterpillars.Gnaphalium is a genus of flowering plants in the sunflower family, commonly called cudweeds. They are widespread and common in temperate regions, although some are found on tropical mountains or in the subtropical regions of the world.
Species in this genus include:
Numerous species have at one time been included in Gnaphalium, but are now considered to belong to other genera: Achyrocline, Aliella, Ammobium, Anaphalioides, Anaphalis, Anaxeton, Antennaria, Argyrotegium, Belloa, Berroa, Blumea, Castroviejoa, Chevreulia, Chionolaena, Chrysocephalum, Dolichothrix, Edmondia, Euchiton, Ewartia, Facelis, Filago, Galeomma, Gamochaeta, Gnomophalium, Helichrysum, Ifloga, Laphangium, Lasiopogon, Leontonyx, Leontopodium, Leucogenes, Logfia, Lucilia, Luciliocline, Metalasia, Micropsis, Neojeffreya, Novenia, Ozothamnus, Pentzia, Petalacte, Phagnalon, Pilosella, Plecostachys, Pseudognaphalium, Pterocaulon, Rhodanthe, Raoulia, Schizogyne, Staehelina, Stuckertiella, Syncarpha, Troglophyton, Vellereophyton, Xerochrysum
Gnaphalium species are known to contain flavonoids and diterpenes. Recently, two unique caffeoyl-D-glucaric acid derivatives, leontopodic acid and leontopodic acid B formerly only known from Leontopodium alpinum (L.) Cass. were detected in various species of Gnaphalium together with similar formerly unknown compounds.
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