Overview

Distribution

National Distribution

Canada

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Ecology

Associations

Foodplant / saprobe
erumpent stroma of Stylodothis puccinioides is saprobic on dead branch of Daphne laureola

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Molecular Biology and Genetics

Molecular Biology

Barcode data: Daphne laureola

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Statistics of barcoding coverage: Daphne laureola

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 5
Specimens with Barcodes: 5
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: NNA - Not Applicable

United States

Rounded National Status Rank: NNA - Not Applicable

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NatureServe Conservation Status

Rounded Global Status Rank: GNR - Not Yet Ranked

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Wikipedia

Daphne laureola

Daphne laureola, commonly called spurge-laurel[1] (or daphne-laurel, laurel-leaved daphne, olive-spurge, wood laurel, copse laurel),[citation needed] is a shrub in the flowering plant family Thymelaeaceae. Despite the name, this woodland plant is neither a spurge nor a laurel. Its native range covers much of Europe and extends to Algeria, Morocco and the Azores.[1] With Daphne mezereum it is one of two species of Daphne native to Britain, both of which have a strong preference for alkaline soils and are most commonly found in limestone areas. However, unlike D. mezereum, D. laureola is an evergreen with yellowish green flowers borne very early in the spring and black berries, which are poisonous to humans but not to birds, present from late summer.[2] All parts of the plants are poisonous. The sap is known to cause skin rashes on contact.

D. laureola reaches a height between 0.5-1.5 meters. The habit of this shrub can be upright or decumbent (arched at the base then spreading upward). The bark is thin and yellow-grey when mature, while immature stems are green.

The alternate leaves usually form dense whorls at the shoot tips, but may clothe entire branches. The leaves are oblanceolate to obovate-oblanceolate, 2–13 cm long and 1–3 cm wide. They are glabrous (smooth), dark green and glossy on the upper surface and lighter in color beneath.

The inconspicuous yellow-green axial flowers, usually hidden among the leaf bases, may be strongly fragrant, or may exhibit no scent at all.[3]

Outside its native range, D. laureola can become a dangerous invasive weed. Growing in sun or shade, it is well-suited to the temperate forest understory and can rapidly colonize areas (both by seeding and by root suckering) to form monotypic stands and out-compete native vegetation. It is a Class B Noxious weed in Washington state.[4]

Hand-pulling is effective against small infestations (gloves must be worn to protect against the caustic sap); shrubs too large or too small to pull must be dug out.[3]

References[edit]

  1. ^ a b "USDA GRIN Taxonomy". 
  2. ^ The Reader's Digest Field Guide to the Trees and Shrubs of Britain p.123.
  3. ^ a b Washington State Noxious Weed Control Board: Daphne laureola
  4. ^ http://www.nwcb.wa.gov/weed_info/Daphne_laureola.html
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