Dhirta biyuhu waa dhir la qabsatay in ay ku noolaadaan bey'ad biyood (biyaha cusbada ama biyaha saafiga ah). Waxaa sidoo kale loo tixraacaa sida haydaroofiit ama makrofiit si ay uga soocaan algae iyo mikrofiit kale. Makrofiit waa geed ka baxa gudaha ama meel u dhow biyaha oo ah mid soo baxaya, quusaya, ama sabeynaya. Harooyinka iyo webiyada makrofiit waxay bixiyaan daboolka kalluunka, Walaxda waayo laf dhabarta biyoodka, soo saaraan ogsajiin, iyo u dhaqmaan sidii cunto kalluunka iyo duurjoogta qaarkood.

The flower of Nymphaea alba, a species of water lily
The flower of Nymphaea alba, a species of water lily
Bud of Nelumbo nucifera, an aquatic plant.
Bud of Nelumbo nucifera, an aquatic plant.

Tixraacyada wax ka badal