''Crataegus'' section ''Douglasia''
| Crataegus section Douglasia | |
|---|---|
 | |
| Crataegus douglasii fruit (series Douglasianae) | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Rosids |
| Order: | Rosales |
| Family: | Rosaceae |
| Genus: | Crataegus |
| Section: | Douglasia Loudon[1] |
Section Douglasia is a North American section within the genus Crataegus of species with black fruit.[1]
Series
Series in section Douglasia include:[1]
- Cerrones
- Douglasianae
- Purpureofructus
See also
References
- 1 2 3 Phipps, J.B. (2015), "Crataegus Linnaeus sect. Douglasia Loudon, Arbor. Frutic. Brit. 2:816 1838", in L. Brouillet; K. Gandhi; C.L. Howard; H. Jeude; R.W. Kiger; J.B. Phipps; A.C. Pryor; H.H. Schmidt; J.L. Strother; J.L. Zarucchi, Flora of North America North of Mexico, Volume 9: Magnoliophyta: Picramniaceae to Rosaceae, New York, Oxford: Oxford University Press, pp. 502–514
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