Quite a complex poem this one, due its use of two kakekotoba ‘pivot words’ – essentially phrases that could be interpreted in two different ways. Here, the poet mentions sinobugusa, a type of fern. Sinobu, however, could also mean ‘remember’, while the verb yaturu could mean both ‘waste away’ and ‘grow wildly’ so the first two lines are simultaneously kimi ni sinobu ‘remembering you’ and sinobu/kusa ni yatururu ‘overgrown by ferns’ and ‘waste away among the ferns’.