| usnea | (n) widely distributed lichens usually having a greyish or yellow pendulous freely branched thallus, Syn. genus Usnea |
| usneaceae | (n) fruticose lichens having prostrate or erect or pendulous thalli: genera Usnea, Evernia, Ramalina, Alectoria, Syn. family Usneaceae |
| Usnea | ‖n. [ NL., from Ar. usnah moss. ] (Bot.) A genus of lichens, most of the species of which have long, gray, pendulous, and finely branched fronds. Usnea barbata is the common bearded lichen which grows on branches of trees in northern forests. [ 1913 Webster ] |
| 猿麻桛(oK) | [さるおがせ;サルオガセ, saruogase ; saruogase] (n) (uk) old man's beard (any lichen of genus Usnea) [Add to Longdo] |