Prevalence of Different Horticultural Taxa of Ivy (Hedera spp., Araliaceae) in Invading Populations

'English' ivy (Hedera spp.) is a complex of invasive plant pests that are separated into several distinct taxa. To better understand the invasion by ivy of Pacific Northwest native forests, we investigated the taxonomic identity of 58 selected invasive populations in the Pacific Northwest....

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Bibliographic Details
Published in:Biological invasions 2006-03, Vol.8 (2), p.149-157
Main Authors: Clarke, M.M, Reichard, S.H, Hamilton, C.W
Format: Article
Language:English
Subjects:
Araliaceae
Cultivars
ecological invasion
forests
genetic markers
Hedera
Hedera helix
Hedera hibernica
Horticulture
Hybrids
Invasive plants
invasive species
Nonnative species
pest identification
Plant ecology
Plant populations
plant taxonomy
prevalence
random amplified polymorphic DNA technique
Taxa
Taxonomy
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Summary:'English' ivy (Hedera spp.) is a complex of invasive plant pests that are separated into several distinct taxa. To better understand the invasion by ivy of Pacific Northwest native forests, we investigated the taxonomic identity of 58 selected invasive populations in the Pacific Northwest. Random amplified polymorphic DNA (RAPD) markers revealed that 83% of the 119 samples from invading populations were derived form H. hibernica (Kirchner) Bean, which has been frequently sold as English ivy, although this apparently is an incorrect common name. It is used widely in urban landscapes in the Northwest. The remaining 20 samples were either H.helix 'California,' 'Pittsburgh,' 'Star,' other cultivars not investigated in the study or possible hybrids.[PUBLICATION ABSTRACT]
ISSN:1387-3547
1573-1464
DOI:10.1007/s10530-004-2424-6