草臥れる[kutabireru] to get tired
遺草[isou] posthumous works
一年草[ichinensou] annual (plant)
詠草[eisou] draft poem
下草[shitakusa] undergrowth

仮名草紙[kanazoushi] story in the kana
伽草子[togizoushi] fairy-tale book
海草[kaisou] marine plant
乾草[kansou] hay
甘草[kanzou] liquorice

菜蕗[fuki] giant butterbur (Petasites japonicus)
蕗草[rosou] liquorice
蕗の薹[fukinotou] edible flower bud of the fuki (Petasites japonicus) plant, an early spring delicacy

石蕗[tsuwabuki] Japanese silver leaf
伽羅蕗[kyarabuki] stalks of butterbur boiled in soy sauce
山蕗[yamabuki] wild giant butterbur