cryptogamous

1. Seaweed is an inferior cryptogamous plant in the sea. The nutrients of seaweeds are greatly different from that of plants on land because of their particular environment. Seaweed contains rich minerals and vitamins that are much less in amount in ordinary plants on land.
   海藻是生长在海洋中的低等隐花植物，由于其特殊的生长环境，营养成分与陆生植物存在很大的不同，海藻中含有一般陆生植物无法比拟的丰富的矿物元素及维生素等。

adj

1. of or relating to a cryptogam

   Synonym:    cryptogamic