Gnaphalium
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| Gnaphalium | |
|---|---|
 | |
| Gnaphalium sandwicensium | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Subfamily: | Asteroideae |
| Tribe: | Gnaphalieae |
| Genus: | Gnaphalium L. |
| Species | |
|
Many, see text. | |
Gnaphalium is a genus of flowering plants in the daisy family, Asteraceae. It contains about 120 species, which are commonly called cudweeds. They are mostly found in temperate regions, although some are found on tropical mountains or in the subtropical regions of the world.
Cudweeds are important foodplants for American Painted Lady caterpillars.
Selected species
- Gnaphalium affine D.Don
- Gnaphalium chimborazense Hieron.
- Gnaphalium decurrens – Cudweed
- Gnaphalium dysodes Spreng.
- Gnaphalium ecuadorense Hieron.
- Gnaphalium exilifolium – Slender Cudweed
- Gnaphalium hypoleucum
- Gnaphalium imbaburense Hieron.
- Gnaphalium indicum
- Gnaphalium japonicum
- Gnaphalium keriense
- Gnaphalium norvegicum L. – Highland Cudweed[1]
- Gnaphalium palustre Nutt. – Western Marsh Cudweed
- Gnaphalium polycaulon – Manystem Cudweed
- Gnaphalium polycephalum – White Balsam
- Gnaphalium pyramidale Berg.
- Gnaphalium sandwicensium – ʻEna ʻena (Hawaii)
- Gnaphalium sepositum Benoist
- Gnaphalium sodiroi Hieron.
- Gnaphalium supinum – Dwarf Cudweed
- Gnaphalium sylvaticum L. – Wood Cudweed
- Gnaphalium uliginosum L. – Marsh Cudweed
Formerly placed here
- Helichrysum luteoalbum (as G. luteoalbum)
- Pseudognaphalium californicum (as G. californicum)
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.[2]
References
- ↑ Rose, Francis (1981). The Wild Flower Key. Frederick Warne & Co. pp. 377–380. ISBN 0-7232-2419-6.
- ↑ Cicek, S; Untersulzner, C; Schwaiger, S; Zidorn, C (July 2012). "Caffeoyl-D-glucaric acid derivatives in the genus Gnaphalium (Asteraceae: Gnaphalieae)" (Free full text). Records of Natural Products (Gebze-Kocaeli , Türkiye) 6 (3): 311–315. ISSN 1307-6167.
External links
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