Functional aspects of Pistia stratiotes, an invasive plant of Al Jawahir (Fez) wadi lentic habitats

Excessive growth of invasive alien aquatic plants threatens local ecosystems and has both ecological economic impacts. This work highlights morphological functional aspects Pistia stratiotes L., first reported in Fez 2012. The total photosynthetic surface a plant is highly correlated (R2=0.72) to the product length maximum width external leaf. biomass was related (R2=0.71) size averaged 67.54±26.35 g dw.m-2. Its peak does not necessarily co-occur with flowering and/or high production stolons. nitrogen phosphorus mineralomasses correspond 11.46±4.55 kg N.ha-1 0.83±0.33 P.ha-1. Pistia, estimated under these conditions, ranks it among least productive Moroccan wetland plants.