海金沙 [－－－]

Jyutping hoi2 gam1 saa1
Pinyin hǎi jīn shā

Definitions (CC-CANTO)
  1. Lygodium japonicu, a Japanese climbing fern
Definitions (Wiktionary)
  1. noun
    spores of Lygodium japonicum (a medicinal substance used in traditional Chinese medicine to "induce diuresis and excrete dampness".
    (syn.) 海金砂