裏白

Literally, “back white”, 裏(うら) (ura, “back, reverse”) + 白(しろ) (shiro, “white”)

• IPA^(key): [ɯ̟ɾa̠ʑiɾo̞]

裏(うら)白(じろ) or 裏白(ウラジロ) • (urajiro) 

1. something white on the back
2. Gleichenia japonica

   Synonyms: 山草 (yamakusa), 桫欏 (hego)

3. (poetry) clipping of 裏白連歌 (urajiro renga)
4. (architecture) clipping of 裏白戸 (urajiro-to, “plaster coated sliding door used as a fire-proof door in 蔵 (kura, “traditional storehouses”)”)
5. synonym of 河原柴胡 (kawara saiko, “Potentilla chinensis”)
6. synonym of 藪煙草 (yabu tabako, “Carpesium abrotanoides”)
7. synonym of 竹似草 (takenigusa, “five-seeded plume-poppy, Macleaya cordata”)
8. synonym of 裏白樺 (urajiro-kanba, “Betula corylifolia”)
9. synonym of 山艾 (yama yomogi, “Artemisia montana”)
10. synonym of 白だも (shiradamo, “Neolitsea sericea”)

As with many terms that name organisms, this term is often spelled in katakana, especially in biological contexts (where katakana is customary).