Chamaerops: Difference between revisions
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It is the northernmost naturally occurring palm in the world, with the [[The world's most northern|northernmost]] localities at [[Hyères|Hyères-les-Palmiers]], on the [[Mediterranean]] coast of southern [[France]], at 43° 07' N,<ref name=parcs>Parcs Nationaux de France: [http://www.portcrosparcnational.fr/actualites/parcnational/archives.asp?id=60 Hyères-les-(ex)-Palmiers]</ref> and on the island of [[Capraia]] off the Italian coast, at 43° 04' N. |
It is the northernmost naturally occurring palm in the world, with the [[The world's most northern|northernmost]] localities at [[Hyères|Hyères-les-Palmiers]], on the [[Mediterranean]] coast of southern [[France]], at 43° 07' N,<ref name=parcs>Parcs Nationaux de France: [http://www.portcrosparcnational.fr/actualites/parcnational/archives.asp?id=60 Hyères-les-(ex)-Palmiers]</ref> and on the island of [[Capraia]] off the Italian coast, at 43° 04' N. |
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There is one species with two accepted [[variety (biology)|varieties]] <ref name=kew/> and |
There is one species with two accepted [[variety (biology)|varieties]] <ref name=kew/> and two [[cultivars]] <ref name=rhsdb>Royal Horticultural Society Horticultural Database: [http://www.rhs.org.uk/Databases/HortDatabase.asp?ID=162568]</ref> |
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*''Chamaerops humilis'' var. ''argentea'' André (syn. var. ''cerifera''). Northwest Africa. Leaves glaucous. |
*''Chamaerops humilis'' var. ''argentea'' André (syn. var. ''cerifera''). Northwest Africa. Leaves glaucous. |
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*''Chamaerops humilis'' var. ''humilis''. Southwest Europe. Leaves green. |
*''Chamaerops humilis'' var. ''humilis''. Southwest Europe. Leaves green. |
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*''Chamaerops humilis'' 'Vulcano'. Compact, thornless [[cultivar]] - may be silvery, but less so than ''argentea''. The leaves tend to be thicker, and the appearance of the plant is bushier than var. ''humilis'' or var. ''argentea''. |
*''Chamaerops humilis'' 'Vulcano'. Compact, thornless [[cultivar]] - may be silvery, but less so than ''argentea''. The leaves tend to be thicker, and the appearance of the plant is bushier than var. ''humilis'' or var. ''argentea''. |
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*''Chamaerops humilis var. humilis 'Nana'<ref name=rhsdb2>RHS Horticultural Database entry for Chamaerops humilis var. humilis 'Nana': [http://apps.rhs.org.uk/horticulturaldatabase/hortdatabase.asp?id=270326&crit=chamaerops&genus=Chamaerops]</ref> |
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It is closely related to the genus ''[[Trachycarpus]]'' from [[Asia]], differing in clumping habit (''Trachycarpus'' only forms single stems without basal suckers), the spiny leaf stems (spineless in ''Trachycarpus''), and in small details of the flower anatomy.<ref name=rushforth/> |
It is closely related to the genus ''[[Trachycarpus]]'' from [[Asia]], differing in clumping habit (''Trachycarpus'' only forms single stems without basal suckers), the spiny leaf stems (spineless in ''Trachycarpus''), and in small details of the flower anatomy.<ref name=rushforth/> |
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Revision as of 19:59, 20 January 2011
| Chamaerops humilis | |
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| Chamaerops humilis var. humilis, Zingaro, Sicily | |
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| Genus: | Chamaerops L.
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| Species: | C. humilis
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| Binomial name | |
| Chamaerops humilis L.
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Chamaerops is a genus of flowering plants in the family Arecaceae (palm family), comprising a single species Chamaerops humilis (European Fan Palm or Mediterranean Fan Palm).
Distribution
This palm is native to the western Mediterranean region. It is mainly found in southwestern Europe (Portugal, Spain, France, Italy and Malta) and northwest Africa (Morocco, Algeria, Tunisia).[1][2]
Description
It is a shrub-like clumping palm, with several stems growing from a single base. The stems grow slowly and often tightly together, eventually reaching 2-5 m tall with a trunk diameter of 20-25 cm. It is a fan palm (Arecaceae tribe Corypheae), with the leaves with a long petiole terminating in a rounded fan of 10-20 leaflets; each leaf is up to 1-1.5 m long, with the leaflets 50-80 cm long. It also has numerous sharp needle-like spines produced on the leaf stems; these protect the stem growing point from browsing animals. The flowers are borne in dense, short clusters at the top of the stems; it is usually (but not invariably) dioecious with male and female flowers on separate plants. The fruit is a brown drupe 1-2 cm long.[3][4]
It is the northernmost naturally occurring palm in the world, with the northernmost localities at Hyères-les-Palmiers, on the Mediterranean coast of southern France, at 43° 07' N,[5] and on the island of Capraia off the Italian coast, at 43° 04' N.
There is one species with two accepted varieties [1] and two cultivars [6]
- Chamaerops humilis var. argentea André (syn. var. cerifera). Northwest Africa. Leaves glaucous.
- Chamaerops humilis var. humilis. Southwest Europe. Leaves green.
- Chamaerops humilis 'Vulcano'. Compact, thornless cultivar - may be silvery, but less so than argentea. The leaves tend to be thicker, and the appearance of the plant is bushier than var. humilis or var. argentea.
- Chamaerops humilis var. humilis 'Nana'[7]
It is closely related to the genus Trachycarpus from Asia, differing in clumping habit (Trachycarpus only forms single stems without basal suckers), the spiny leaf stems (spineless in Trachycarpus), and in small details of the flower anatomy.[3]
Ecology
It is adapted to a Mediterranean climate with cool, moist winters and summer drought, and typically grows on dry hill slopes. It is one of the hardier palms, tolerating winter frosts down to about −12°C.[8] It will make growth even in climates where the summer temperature is in the low 20's C.
In some areas, including its northernmost native location, it is seriously threatened by an introduced South American moth Paysandisia archon.[5][9]
It is often grown as an ornamental plant in southern Europe, and is also suitable for growing in many locations within the United States. It's also suitable for growing in the southern parts of the United Kingdom.
Gallery
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Flowers -
Mature fruit -
Mature fruit, close-up -
Chamaerops humilis var. argentea, south slopes of the High Atlas, Morocco -
Chamaerops humilis leaf. -
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References
- ^ a b WCSP, World Checklist of Palms: Chamaerops
- ^ Euro+Med Plantbase Project: Chamaerops humilis
- ^ a b Rushforth, K. (1999). Trees of Britain and Europe. Collins ISBN 0-00-220013-9.
- ^ Huxley, A., ed. (1992). New RHS Dictionary of Gardening. Macmillan ISBN 0-333-47494-5.
- ^ a b Parcs Nationaux de France: Hyères-les-(ex)-Palmiers
- ^ Royal Horticultural Society Horticultural Database: [1]
- ^ RHS Horticultural Database entry for Chamaerops humilis var. humilis 'Nana': [2]
- ^ Dossiers-Jardin: Les palmiers résistants au froid
- ^ International Palm Society: Importation of Mature Palms: A Threat to Native and Exotic Palms in Mediterranean Countries?
External links
