From Japanese-German FreeDict Dictionary ver. 0.2.0:
[news2] [nf42] 葦 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, [news2] [nf34] 蘆 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, 葭 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, 芦 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, [news2] [nf34] [nf42] あし /ˈäɕi/, よし /jˈo̞ɕi/, () アシ /ˈäɕi/, () ヨシ /jˈo̞ɕi/
(noun (common) (futsuumeishi))
(nouns which may take the genitive case particle `no')
Note: word usually written using kana alone(n) Schilf, (n) Schilfrohr, (n) Ried, Phragmites communis