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(Upload on August 17 2015) [ 日本語 | English ]

Veronica L. (クワガタソウ) Ookawajisya (オオカワヂシャ, 大川萵苣), water speedwell Life form: annual/perennial forb Distribution: Europe - nothern Asia (exotic to Japan) Japan: south to Aomori Prefecture (mostly in Kanto and Chubu District) Firstly reported from Sagami in Kanagawa Prefecture in 1867 Invasive alien species to Japan Habitat: riverbeds, paddy fields, etc.

Use: edible Hybrids: V. × myriantha Tos. Tanaka (ホナガカワヂシャ) = V. undulata × anagallisaquatica

Veronica tenella in Hokkaido

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[1-3] at the imperial gardens in the former lawn Shiba detached palace, Tokyo, on May 29 2015.