The leaves are bluish-green, simple, lanceolate, with wavy and sometimes lobed margins, covered in spines on both the margins and beneath.
ðə lˈiːvz ɑːɹ blˈuːɪʃɡɹˈiːn, sˈɪmpəl, lˈænsɪˌɑːleɪt, wɪð wˈeɪvi ænd sˈʌmtaɪmz lˈoʊbd mˈɑːɹdʒɪnz, kˈʌvɚd ɪn spˈaɪnz ˌɔn bˈoʊθ ðə mˈɑːɹdʒɪnz ænd bᵻnˈiːθ.