her·ba·ceous /ˌ(h)ɝˈbeʃəs/
  (a.)草本的,葉狀的,綠色的
  Her·ba·ceous a.  Of or pertaining to herbs; having the nature, texture, or characteristics, of an herb; as, herbaceous plants; an herbaceous stem.
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  herbaceous
       adj : characteristic of a nonwoody herb or plant part