Vegetation on the Wajiro Coast located in Fukuoka, Japan, was surveyed for the purpose of obtaining information on the status quo of endangered and invasive alien plant species in late May and early June, 2018. Results were as follows; in total, sixty nine plant species were observed including forty one native and twenty eight non-native species. Of them, two plants, Rumex dentatus and Triglochin asiatica, were endangered species and thirteen plants, Coreopsis lanceolate, Senecio madagascariensis, Eragrostis curvula, Solidago altissima, Opuntia sp., Lantana camara, Oenothera laciniata, Yucca gloriosa, Silene gallica, Cuscuta campestris, Atriplex prostrata, Rumex crispus and Lilium formosanum, were invasive alien species, which means some measures should be taken immediately for biological diversity in this area.
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