Biology:Anthoxanthum odoratum
| Anthoxanthum odoratum | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Subfamily: | Pooideae |
| Genus: | Anthoxanthum |
| Species: | A. odoratum
|
| Binomial name | |
| Anthoxanthum odoratum | |
Anthoxanthum odoratum is a short-lived perennial grass, commonly known as sweet vernal grass, that is native to acidic grassland in Eurasia and northern Africa.[1][2] It is grown as a lawn grass and a house plant, due to its sweet scent, and can also be found on unimproved pastures and meadows. The specific epithet odoratum is Latin for 'odorous'.
Description
Anthoxanthum odaoratum is a short-lived perennial grass that grows in tufts with stems up to 70 cm (28 in) tall. The leaves are short and broad, 3–5 mm (0.12–0.20 in) wide, and glabrous to loosely hairy.[3]:306 It flowers in late spring and early summer, i.e. quite early in the season, with flower spikes of 4–6 centimetres (1.6–2.4 in) long and crowded spikelets of 6–10 mm (0.24–0.39 in), oblong shaped, which can be quite dark when young. The lower lemmas have projecting awns. The ligules are quite long, up to 5 mm (0.20 in), blunt, with hairy fringes around the side.
The scent is particularly strong when dried, and is due to coumarin, a glycoside, and benzoic acid – it smells like fresh hay with a hint of vanilla. The seed head is bright yellow in color.[4]
Anthoxanthum odoratum is experiencing parapatric speciation in areas of mine contamination.[5][6]
Distribution
Anthoxanthum odoratum is native to Europe and temperate parts of Asia, but is widely introduced and naturalised so that distribution is now Circumpolar Wide-temperate.[7] It is ubiquitous at the 10 km square level in Britain.[7]
Cultivation
It is grown by scattering seed on tilled ground in the spring through fall, germinating in 4 to 5 days. It prefers sandy loam and acidic conditions (a low pH). As an agricultural grass it has a low yield, but can grow on land too acidic for other grasses.
Gallery
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References
- ↑ "Anthoxanthum odoratum L. | Plants of the World Online | Kew Science". https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:389034-1.
- ↑ "Anthoxanthum odoratum". https://www.brc.ac.uk/plantatlas/plant/anthoxanthum-odoratum.
- ↑ Cope, Tom; Gray, Alan (2009). Grasses of the British Isles, BSBI Handbook N0. 13. London: Botanical Society of the British Isles (now Botanical Society of Britain and Ireland). ISBN 978-0-901158-420.
- ↑ BSBI Description retrieved 10 December 2010.
- ↑ "Parapatric speciation". University of California Berkeley. http://evolution.berkeley.edu/evolibrary/article/_0/speciationmodes_04.
- ↑ Janis Antonovics (2006), "Evolution in closely adjacent plant populations X: long-term persistence of prereproductive isolation at a mine boundary", Heredity 97 (1): 33–37, doi:10.1038/sj.hdy.6800835, PMID 16639420
- ↑ 7.0 7.1 "Anthoxanthum odoratum". Online atlas of the British and Irish flora. Biological Records Centre and Botanical Society of Britain and Ireland. https://www.brc.ac.uk/plantatlas/plant/anthoxanthum-odoratum.
Further reading
- Pink, A. (2004). Gardening for the Million. Project Gutenberg Literary Archive Foundation. https://www.gutenberg.org/ebooks/11892.
External links
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Wikisource has the text of the 1905 New International Encyclopedia article Vernal Grass. |
Wikidata ☰ Q157751 entry
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