California Washington Palm
| California Washington Palm | ||||||||||||
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Washingtonia filifera in Palm Canyon, California |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Washingtonia filifera | ||||||||||||
| ( Linden ex André ) H. Wendl. ex de Bary |
The California Washington Palm ( Washingtonia filifera ), also known as Washingtonia, is a species of palm that is native to North America. It is a fan palm that is often planted in subtropical areas .
features
The trunk reaches a height of up to 18 m and a diameter of 90 to 120 cm. The base is swollen. The trunk is gray and has narrow cracks in the older area, otherwise brown to red-brown. The trunk is surrounded below the crown by a dress made of dead leaves, which sometimes covers the entire length of the trunk, which looks like a (priest) skirt. This is where the name “ petticoat palm” or priest palm comes from . These leaves are often removed from ornamental plants.
The leaves are 1.8 to 2.4 m wide, fan-shaped and from yellowish-green to silver or gray-greenish color. The petiole is 1.8 m long and has sharp teeth on the edge. The blade is usually divided into segments by more than half. The segments are pendulous at the top. There are whitish threads between the segments. The species epithet filifera , which means "the one who carries the thread", comes from these threads .
The inflorescences stand between the leaves and protrude clearly above them. The flowers are hermaphrodite and whitish. The fruits are dark brown to black. The fruit clusters hang well below the crown.
Distribution and locations
The species is native to California , western Arizona, and northeast Baja California . It grows here along streams and arroyos, as well as near springs.
use
The species is a popular ornamental plant. It is cold-hard in dry areas in USDA climate zones 7 to 11. It is more suitable for Mediterranean climates than for humid tropical conditions.
In culture are hybrids with Washingtonia robusta often that the cold resistance of Washingtonia filifera with the elegance of Washingtonia robusta connect. They are known as Washingtonia filibusta .
Individual evidence
- ^ Walter Erhardt et al .: The great pikeperch: Encyclopedia of plant names. , 2008. Quoted from: Germplasm Resources Information Network , accessed April 16, 2012.
- ↑ David Jones: Palms . Könemann, Cologne, 2000, ISBN 3-8290-4889-0
- ↑ a b c d e f Robert Lee Riffle, Paul Craft: An Encyclopedia of Cultivated Palms . Timber Press, Portland 2007, ISBN 978-0-88192-558-6 , p. 473.
Web links
- Washingtonia filifera inthe IUCN 2013 Red List of Threatened Species . Listed by: Johnson, D., 1998. Retrieved December 24, 2013.