Lewis & Short

pūbens, entis, adj. [pubes], arrived at the age of puberty, pubescent (poet.).

  1. I. Lit.: frater, Claud. Cons. Prob. et Olybr. 142: anni, Aus. Idyll. ap. Monos. Membr. 12, 2.
  2. II. Transf., of plants, in full vigor, juicy, flourishing, exuberant: herbae, Verg. G. 3, 126; id. A. 4, 514: frondes salicum, Aus. Ep. 2, 14: gramina, id. Idyll. 10, 203: rosae, Stat. S. 3, 3, 129.