Prunus lusitanica

Taxobox
name = "Prunus lusitanica"


image_width = 240px
image_caption = Foliage and immature fruit
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Rosales
familia = Rosaceae
subfamilia = Prunoideae
genus = "Prunus"
species = "P. lusitanica"
binomial = "Prunus lusitanica"
binomial_authority = L.

"Prunus lusitanica" (common name Portugal laurel ) is a species of cherry, native to southwestern France, Spain, Portugal, Morocco, and Macaronesia (the Azores, Canary Islands and Madeira).Euro+Med Plantbase Project: [http://ww2.bgbm.org/_EuroPlusMed/PTaxonDetail.asp?NameId=29971&PTRefFk=500000 "Prunus lusitanica"] ] Germplasm Resources Information Network: [http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?30029 "Prunus lusitanica"] ]

It is an evergreen shrub or small tree growing to 3-15 m tall. The bark is blackish-brown, The leaves are alternate, oval, 7–12 cm long and 3–5 cm broad, with an acute apex and a dentate margin, glossy dark green above, lighter below. They superficially resemble those of the Bay Laurel, which accounts for its often being mistaken for one. The flowers are small (10-15 mm diameter) with five small white petals; they are produced on erect or spreading spikes 15–25 cm long in late spring. The fruit is a small cherry-like drupe 8–13 mm in diameter, green or reddish green at first, turning dark purple or black when ripe in late summer or early autumn.Rushforth, K. (1999). "Trees of Britain and Europe". Collins ISBN 0-00-220013-9.]

It is rare in the wild, occurring mainly along mountain streams, preferring sunshine and moist but well-drained soils. It is moderately drought-tolerant. It reproduces either sexually (the most successful method) or asexually by cloning from shoots.Alarcon, J. A. C. (2001). "Geobotany and Conservation Biology Study on Prunus lusitanica L. Iberian populations". Departamento de Biologia. Facultad de Ciencias, Universidad Autonoma de Madrid. Available [http://bio-math10.biology.kyushu-u.ac.jp/seminar/2001-03-08a.pdf online] (pdf file).]

Three subspecies are accepted:
*"Prunus lusitanica" subsp. "lusitanica". Mainland Europe.
*"Prunus lusitanica" subsp. "azorica" (Mouill.) Franco. Azores.
*"Prunus lusitanica" subsp. "hixa" (Willd.) Franco. Canary Islands, Madeira, Morocco.

The species was first scientifically described by Linnaeus in "Species Plantarum" in 1753. Its specific epithet "lusitanica" means of Lusitania, the Roman name for Portugal.

Cultivation and uses

It is widely grown as an ornamental shrub and is used as a hedge plant. The fruit is very bitter and inedible (doubtfully edible if fully ripe), and may be toxic.Plants for a Future: [http://www.pfaf.org/database/plants.php?Prunus+lusitanica "Prunus lusitanica"] ]

It is introduced and locally naturalised in the temperate zone in northern France, Great Britain, Ireland, New Zealand, and the western United States in California, Oregon and Washington.

References