Farfugium hiberniflorum (formerly Ligularia sp.)

Family: Asteraceae
English: Silverleaf or leopard plant (sp)
Japanese: カンツワブキ (Kan tsuwabuki)

there is also a "Farfugium tatwakii," the Yakushima tsuwabuki, with a reclassification dated 2004, but I wonder if this isn't an oversight. If the link still works, check out Molecular phylogeny and habitat diversification of the genus Farfugium (Asteraceae) based on nuclear rDNA and plastid DNA and Plant Hunting in Yakushima for a good read. )

References:
屋久島の植物　 川原勝征,初島住彦(監修),1995：八重岳書房
「BG Plants 和名－学名インデックス」（YList） 米倉浩司・梶田忠 (2003-)　，http://bean.bio.chiba-u.jp/bgplants/ylist_main.html（2014年12月2日）.
Tropicos.org. Missouri Botanical Garden. http://www.tropicos.org/Name/2739607 (2 Dec 2014)
Molecular phylogeny and habitat diversification of the genus Farfugium (Asteraceae) based on nuclear rDNA and plastid DNA
Plant Hunting in Yakushima

This is Yakushima's endemic sibling of F. japonicum, which has been planted and encouraged to grow throughout the lowlands, because it's beautiful and also because new leaf stalks are delicious when peeled and boiled. The habitat of the less common and not-so-tasty-looking F. hiberniflorum tends to be restricted to the mountains. Look for the jagged leaves on sandy cliff sides.