Zvirimwa izvi ndezvemhando mbiri, hazviwanzo monoecious. Makoni echirume ane 2<unk>5 millimetres (0.079<unk>0.197 in) akareba, uye anodonhedza mukume pakutanga kwechirimo. Makoni echirume akaderedzwa zvakanyanya, aine imwe chete yezai uye imwe mbeu. Sezvo mbeu inokura, iyo yezai inokura kuita nyama ine nyama inobatanidza mbeu. Iyo yakakura iri yakajeka, yakapfava, ine muto uye inotapira, uye inozodyiwa neshiri iyo mbeu inopararira mumadonhwe avo akaomarara. Zvisinei, mbeu dzechikadzi dzine chepfu zvakanyanya kuvanhu.
imwe inenge ine mazai nembeu imwe chete