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(First upload on June 28 2008. Last on September 27 2023) [ 日本語 | English ]

Coreopsis L. (ハルシャギク) Ookinkeigiku (オオキンケイギク, 大金鶏菊), lanceleaf tickseed Lifeform: perennial forb Distribution: Native to North America (exotic to Japan) assigned as an invasive alien species by the Invasive Alien Species Act Law of Japan invasive alien species (特定外来生物) Hokkaido Blue List: A3 Field training on integrated environmental research, 統合環境調査法実習

Habitat: roadsides, riverbeds, etc. Landscape on skislopes (スキー場景観)

Coreopsis lanceolata in Asia

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[1] in Nagaoka Municipal Skislope, Niigata Prefecture, on August 31, 1990. [2] on a sandbar along Toyohira River, Sapporo, on July 14 2020. [3] in the animal and plant park, Changchun City, Jilin Prvince, northeastern China, on June 6 2017. [4/5] in front of a restaurant in Toyoura Town, southwestern Hokkaido, on August 18 2018. [6] in front of Konan Shrine in Tonden, North Ward, Sapporo, on July 4 2020. Records: at a roadside of N30/E4, East Ward, Sapporo, on August 30 2009. Looks like a garden flower.

Izu-Oshima Island (伊豆大島)

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[1] in front of a hotel I stayed on June 7 20223. [2] along a paved road close to the hotel on June 8 2023. This species was widespread in the whole of island.