Geum canadense
| Geum canadense | |
|---|---|
| |
| Leaves | |
| Scientific classification Error creating thumbnail: | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Rosaceae |
| Genus: | Geum |
| Species: | G. canadense
|
| Binomial name | |
| Geum canadense Jacq.
| |
Geum canadense, the white avens, is a plant in the rose family, Rosaceae. It is widespread across much of Canada, the United States, and Mexico.[1][2][3]
It readily hybridizes with the introduced Geum urbanum. The hybrid is named Geum × catlingii J.-P. Bernard & R. Gauthier.[4]
Description
[edit | edit source]Geum canadense is a herbaceous plant with basal leaves that have more than three leaflets and are arranged in a low rosette. Leaves above the basal rosette are alternate, with those placed just above the basal leaves typically trifoliate, and upper leaves usually simple. These cauline leaves are serrate.[5] Basal leaves are a darker green and are often coarsely hairy compared to the lighter green and fine hairs found on upper leaves and stems.[5] In milder climates the foliage is evergreen.[6]
Blooming occurs for one to two months in the summer; each flower has five white petals and five green sepals. Flowers are replaced by clusters of long, thin seeds each with a hook on one end that may catch on clothing or animal fur.[5] The flowers resemble those of other members of the rose family such as blackberries[5] and strawberries.[6]
The root system consists of a taproot and rhizomes. The plants prefer light shade or partial sun and moist to dry conditions. Somewhat unusually, they are resistant to the phytotoxins released by black walnut trees and so can grow near such trees.[5]
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The plant during dormancy -
Summer growth
External links
[edit | edit source]- Error creating thumbnail: File missing Media related to Lua error in Module:Commons_link at line 62: attempt to index field 'wikibase' (a nil value). at Wikimedia Commons
References
[edit | edit source]- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Davidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera. 2014. Saururaceae a Zygophyllaceae. 2(3): ined. In G. Davidse, M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera (eds.) Flora Mesoamericana. Universidad Nacional Autónoma de México D.F., México
- ^ Radford, A. E., H. E. Ahles & C. R. Bell. 1968. Manual of the Vascular Flora of the Carolinas i–lxi, 1–1183. University of North Carolina Press, Chapel Hill
- ^ Bernard, J.-P. & R. Gauthier. 1986. Observations sur le Geum urbanum L. dans la région de Québec et description de deux hybrides. Le naturaliste canadien 113: 317-324
- ^ a b c d e Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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