noun
pink sea milkwort
A plant species, Glaux maritima var. obtusifolia. Botanical term; learners may encounter it in nature guides or scientific contexts.
海岸でウミミドリを見つけた。
I found pink sea milkwort on the seashore.
Compound of 海 (umi, 'sea') and 緑 (midori, 'green'), referring to its seaside habitat and green color. The exact derivation is uncertain.