European holly (Ilex aquifolium) observed in Portland, OR, US
iNaturalist: mattiexoxo
Summary
6.2/10A research-grade observation of European holly, an ornamental shrub non-native to North America, documented in Portland, OR through citizen science, contributing to invasive species monitoring in the Pacific Northwest region.
Key Findings
European holly (Ilex aquifolium) confirmed at research-grade status in Portland, OR metropolitan area
Observation supports ongoing documentation of non-native ornamental species naturalization in temperate urban zones
Data point for understanding spread patterns of Mediterranean-origin shrubs in Pacific Northwest climate conditions
Original Abstract
Research-grade observation of European holly in Portland, OR, US.
Species Mentioned
Ilex aquifolium, the holly, common holly, English holly, European holly, or occasionally Christmas holly, is a species of flowering plant in the family Aquifoliaceae, native to western and southern Europe, northwest Africa, and southwest Asia. It is regarded as the type species of the genus Ilex,...
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