Trigonotis peduncularis (a species of wild herb)
A small wild herb with tiny blue flowers, often found in fields and roadsides. The leaves smell like cucumber when crushed, hence the Japanese name キュウリグサ (cucumber grass).
I found a Trigonotis peduncularis with tiny blue flowers by the roadside.
When you crush the leaves of Trigonotis peduncularis, they give off a faint cucumber scent.
Katakana spelling is common for plant names; usually written in kana.
Kanji spelling is rare; the plant is almost always written in kana.
The Japanese name キュウリグサ literally means 'cucumber grass', from the cucumber-like scent of its crushed leaves.