スキマ草Plant - ドクダミと with a doku-dami

ドクダミと思われる葉っぱと、水色のとても小さな花が、共存か競争か。壁の窪みの一つ所に一緒にいました。

It must be doku-dami, some unknown plant that had little tiny light blue flowers, they were together or competition, at the one sinkhole on the wall.

*not sure about my English...