Crataegus punctata
| Crataegus punctata | |
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| File:Crataegus punctata flowers 2.jpg | |
| A red-anthered form of this variable species | |
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C. punctata
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| Binomial name | |
| Crataegus punctata |
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Crataegus punctata is a species of hawthorn known by the common names dotted hawthorn[2][3] or white haw that is native to most of the eastern U.S. and eastern Canada. While some sources claim it is the state flower of Missouri,[4] the actual legislation does not identify an exact species.[5] Furthermore, the Missouri Department of Conservation asserts the Crataegus mollis was specifically designated as the state flower.[6]
Although many North American hawthorns are polyploid and reproduce by apomixis, this species is apparently diploid and sexual, at least throughout Ontario, Canada.[7] The name white haw refers to its distinctive pale (grey) bark, which is particularly noticeable in the winter landscape. The plant is a bush or small tree to about 7 meters in height and very thorny, particularly on the trunk. The flower has 3 to 5 styles and approximately 20 stamens, and the fruit has 3 to 5 nutlets. Anther colour varies from deep purple through red to pink to white, and the mature fruit colour can be deep burgundy, scarlet, yellow, or yellow with a red cheek.
See also
References
- ↑ Phipps, J.B.; Robertson, K.R.; Smith, P.G.; Rohrer, J.R. (1990). A checklist of the subfamily Maloideae (Rosaceae). Canadian Journal of Botany. 68(10): 2209–2269.
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- ↑ Talent, N., Dickinson, T.A. (2005). Canadian Journal of Botany 83: 1268–1304
External links
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Wikimedia Commons has media related to Lua error in package.lua at line 80: module 'strict' not found.. |
- Phipps, J.B., O’Kennon, R.J., Lance, R.W. (2003). Hawthorns and medlars. Royal Horticultural Society, Cambridge, U.K.
- GRIN Species Profile
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