gametophyte vegetative stage thallus vegetative whole plant development stage PO:0025347 May succeed a protonema whole plant development stage or may directly succeed spore germination. A gametophyte vegetative whole plant development stage during which a thallus is being produced but no gametangia are being produced. etapa de desarrollo del talo vegetativo de la plant entera (Spanish, exact) plant_structure_development_stage rwalls 2011-10-19T12:20:16Z 葉状体栄養生長期 (Japanese, exact)