Notes For Reference:-

Species, Varieties, or Forms in the Genus Veronica:

Veronica anagallis-aquatica / Ookawadisha
Veronica arvensis / Tachiinunofuguri
Veronica hederaefolia / Furasabasou
Veronica muratae / San'inkuwagata
Veronica muratae(white) / San'inkuwagata(white)
Veronica ornata / Touteiran
Veronica persica / Ooinunofuguri
Veronica polita var. lilacina / Inunofuguri
Veronica undulata / Kawadisha
Veronica polita var. lilacina / Inunofuguri

Pseudolysimachion ogurae (Syn. Veronica ogurae) / San'intoranoo
Pseudolysimachion ogurae-pink (Syn. V. ogurae) / Akabana-san'intoranoo
Pseudolysimachion_ogurare-white (Syn. V. ogurae) / Shirobanasan'intoranoo

Veronica anagallis-aquatica / Ookawadisha オオカワヂシャ

Veronica anagallis-aquatica is a biennial, non-indigenous species that has spread throughout the country and inhabits wet environments, such as streambanks and ponds. The stem is erected approximately 1m from the rhizome, with opposite oval or lanceolate leaves with minimal saw teeth. The serration is so minimal that the plate looks like an entire. The raceme of many flowers arises from the axil. The flower corolla has four lobes, measuring up to 1 cm wide, and is a vivid bluish-purple color. Bloom time: April-September.