Gnaphalium is a genus of flowering plants in the family Asteraceae,Linnaeus, Carl von. 1753. Species Plantarum 2: 850-857 in Latin commonly called cudweeds or (formerly) chafeweeds. They are widespread and common in temperate regions, although some are found on tropical mountains or in the subtropical regions of the world.
Species , Plants of the World Online accepted the following species:
Gnaphalium austroafricanum Hilliard Gnaphalium capense Hilliard Gnaphalium chiliastrum (Mattf.) P.Royen Gnaphalium chimborazense Hieron. Gnaphalium clemensiae Mattf. Gnaphalium confine Harv. Gnaphalium declinatum L.f. Gnaphalium demidium (O.Hoffm.) Hilliard & B.L.Burtt Gnaphalium diamantinense Paul G.Wilson Gnaphalium diminutivum Phil. Gnaphalium englerianum (O.Hoffm.) Hilliard & B.L.Burtt Gnaphalium exilifolium A.Nelson Gnaphalium filagopsis Hilliard & B.L.Burtt Gnaphalium flavocephalum G.L.Nesom Gnaphalium genevoisi Emb. Gnaphalium gnaphalodes (DC.) Hilliard & B.L.Burtt Gnaphalium griquense Hilliard & B.L.Burtt Gnaphalium heleios P.Royen Gnaphalium indutum Hook.f. Gnaphalium limicola Hilliard Gnaphalium lycopodium Pers. Gnaphalium maclovianum Gand. Gnaphalium magellanicum Sch.Bip. Gnaphalium nelsonii Burtt Davy Gnaphalium palustre Nutt. Gnaphalium pauciflorum DC. Gnaphalium peguense R.Kr.Singh Gnaphalium phaeolepis Phil. Gnaphalium pilulare Wahlenb. Gnaphalium polycaulon Pers. Gnaphalium pseudohelichrysum Reiche Gnaphalium puberulum DC. Gnaphalium rossicum Kirp. Gnaphalium rosulatum S.Moore Gnaphalium sepositum Benoist Gnaphalium simii (Bolus) Hilliard & B.L.Burtt Gnaphalium stewartii C.B.Clarke ex Hook.f. Gnaphalium uliginosum L. Gnaphalium unionis Sch.Bip. ex Hochst.
Some former species Gnaphalium dysodes → Pseudognaphalium dysodes Gnaphalium ecuadorense → Pseudognaphalium cheiranthifolium Gnaphalium norvegicum → Omalotheca norvegica Gnaphalium sylvaticum → Omalotheca sylvatica
Formerly included 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
Secondary metabolites 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.
Gallery
References
External links
Jepson Manual Treatment