Hugueninia tanacetifolia, the tansy-leaved rocket, is a species of flowering plant in the monotypic genus Hugueninia belonging to the family Brassicaceae. Sometimes it is placed in genus Sisymbrium. Molecular genetic studies have shown it to be most closely related to, and possibly ancestral to the Canary Islands endemic species within the genus Descurainia.[1]
| Hugueninia tanacetifolia | |
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| Flowers of Hugueninia tanacetifolia subsp. suffruticosa at the Giardino Botanico Alpino Chanousia | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Brassicales |
| Family: | Brassicaceae |
| Genus: | Hugueninia Rchb. |
| Species: | H. tanacetifolia
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| Binomial name | |
| Hugueninia tanacetifolia (L.) Rchb.
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| Synonyms | |
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Etymology
editThe genus name honors Auguste Huguenin, botanist of Savoie of the nineteenth century. The Latin name of the species means "with leaves of tansy" because of the similarity of the leaves with some species of the genus Tanacetum.
Description
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Hugueninia tanacetifolia can reach a height of 20–100 centimetres (7.9–39.4 in). This perennial stellate herb has erect glabrous or slightly hairy stem, branched at the top. Leaves are alternate, soft, up to 20 cm long, with a short petiole, lanceolate, toothed on the edges, imparipinnate with 5-10 pairs of segments. The small yellow cruciform flowers in small racemes bloom from June to August.
Distribution
editTansy-leaved rocket is native to mountains of the Iberian Peninsula, France, Italy, Switzerland, the Pyrenees and the southwestern Alps.
Habitat
editThis species prefers arid and rocky slopes at elevation of 1,500–2,500 metres (4,900–8,200 ft) above sea level.
References
edit- Christoper Brickell (Editor-in-chief): RHS A-Z Encyclopedia of Garden Plants. Third edition. Dorling Kindersley, London 2003
- Pignatti 1982, Flora d'Italia. Bologna, Edagricole, 1982
- Specific