hypericum

 
Pronunciation: /hʌɪˈpɛrɪkəm/

noun

  • a yellow-flowered plant of a genus that includes the St John’s worts, tutsan, and rose of Sharon.
    • Genus Hypericum, family Guttiferae

Origin:

Latin, from Greek hupereikon, from huper 'over, above' + ereikē 'heath'