also: しょうら
noun
old man's beard; Usnea lichen
Refers to any lichen of the genus Usnea, commonly called old man's beard. The reading さるおがせ is standard; katakana サルオガセ is frequent in scientific contexts.
See also: サルオガセ
松蘿は湿度の高い森でよく見られる地衣類です。
Usnea is a lichen often found in humid forests.
noun
pine tree vines; deep entanglement
Only with reading しょうら
Archaic figurative use, restricted to the reading しょうら. Describes vines on pine trees or, metaphorically, a deeply entangled situation.
古歌では「松蘿」をしょうらと読み、松に絡まる蔓を詠んだ。
In old poems, 松蘿 is read as しょうら and refers to vines entwining pine trees.
地衣類 is the general term for lichens, while 松蘿 specifically denotes the Usnea genus.
The kanji 松 (pine) and 蘿 (moss/lichen) combine to describe a lichen that grows on pine trees. The reading さるおがせ is a jukujikun, while しょうら is the on-reading. The exact origin of さるおがせ is uncertain.