Quercus × macdonaldii
Quercus × macdonaldii,[1][2][3] formerly Quercus macdonaldii, with the common names MacDonald's oak and Macdonald oak, is a rare species of oak in the family Fagaceae.[1]
| Quercus × macdonaldii (Quercus macdonaldii) | |
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| Leaves of Quercus ×macdonaldii from an individual on Santa Cruz Island, California | |
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| Species: | Q. × macdonaldii |
| Binomial name | |
| Quercus × macdonaldii Greene & Kellogg (pro sp.) [1] | |
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Quercus macdonaldii − Greene | |
Distribution map for Quercus × macdonaldii,
on the California Channel Islands.
on the California Channel Islands.
Distribution
The tree is endemic to the California Channel Islands, on Santa Cruz Island, Santa Rosa Island, and Santa Catalina Island, in Southern California.[2] It is found in chaparral and woodlands habitats in canyons and slopes below 600 metres (2,000 ft).[2]
Quercus × macdonaldii is a Vulnerable species, threatened by habitat loss.[4]
Taxonomy
The plant was reclassified as Quercus × macdonaldii, a naturally occurring hybrid of Quercus pacifica and Quercus lobata, or possibly other oak species.[2][3][5]
See also
- California chaparral and woodlands ecoregion
- Natural history of the Channel Islands of California
References
- ITIS Standard Report Page: Quercus X macdonaldii . accessed 2.28.2015
- Jepson: Quercus × macdonaldii . accessed 2.28.2015
- USDA: Quercus × macdonaldii . accessed 2.28.2015
- IUCN Red List: Quercus macdonaldii; Nixon, K. et al. 1998.
- Kevin, Nixon (2002). "The oak (Quercus) biodiversity of California and adjacent regions" (PDF). Proceedings of the Fifth Symposium on Oak Woodlands: Oaks in California's Challenging Landscape.
External links
- Jepson eFlora treatment of Quercus × macdonaldii
- USDA Plants Profile for Quercus × macdonaldii [berberidifolia × lobata] (MacDonald oak)
- Calflora Database: Quercus × macdonaldii (MacDonald's oak, MacDonald oak)
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