writing brush (old) / Castanopsis fordii, a species of evergreen tree common in the south of China whose calybia (nuts) resemble the tip of a writing brush
hair / feather / down / wool / mildew / mold / coarse or semifinished / young / raw / careless / unthinking / nervous / scared / (of currency) to devalue or depreciate / classifier for Chinese fractional monetary unit ( = 角[jiao3] , = one-tenth of a yuan or 10 fen 分[fen1])