sea lettuce

名词noun

1. 1Any of several edible seaweeds of the genus Ulva.
2. 2Similar seaweed species of other genera:
3. 3Scaevola taccada, also known as the beach cabbage, a terrestrial flowering plant species that is native to coastal regions of the Indo-Pacific.
4. 4Dudleya caespitosa, also known as the sand lettuce, a terrestrial flowering plant species that is endemic to coastal areas of California