PTS Pali-English dictionary - The Pali Text Society's Pali-English dictionary
Poṭaki
Poṭaki,(°ī?) (m.f.?) [etym.uncertain,prob.Non-Aryan] a kind of grass,in °tūla a kind of cotton,“grass-tuft,” thistle-down (?) Vin.II,150; IV,170 (id.,3 kinds of cotton,spelt potaki here).Poṭakila [etym.unknown,cp.poṭaki & (lexic.) Sk.poṭagala a kind of reed; the variant is poṭagala] a kind of grass,Saccharum spontaneum Th.1,27=233; J.VI,508 (=p.°-tiṇaṁ nāma C.).(Page 474)
U Hau Sein’s Pāḷi-Myanmar Dictionary ပါဠိျမန္မာ အဘိဓာန္(ဦးဟုတ္စိန္)