polygonaceae वाक्य

An "'ochrea "'( Latin " ocrea ", greave or protective legging ), also spelled "'ocrea "', is a plant structure formed of stipules fused into a sheath surrounding the stem, and is typically found in the Polygonaceae.
In the Northern Hemisphere, these are essentially the well-known ectomycorrhizal trees and shrubs in the Betulaceae, Fagaceae, Pinaceae and Salicaceae, but in arctic and alpine habitats, Russulaceae also associate with " Bistorta vivipara " ( Polygonaceae ), " Kobresia " ( Cyperaceae ), and " Dryas octopetala " ( Rosaceae ), ectomycorrhizal plants untypic in their respective families.
According to the same author, the following families are well represented : Magnoliaceae, Lauraceae, Ranunculaceae, Berberidaceae, Hamamelidaceae, Fagaceae, Betulaceae, Juglandaceae, Caryophyllaceae, Chenopodiaceae, Polygonaceae, Plumbaginaceae, Theaceae, Salicaceae, Brassicaceae, Ericaceae, Primulaceae, Malvaceae, Euphorbiaceae, Thymelaeaceae, Rosaceae, Fabaceae, Cornaceae, Araliaceae, Apiaceae, Rhamnaceae, Gentianaceae, Boraginaceae, Scrophulariaceae, Lamiaceae, Campanulaceae, Asteraceae, Liliaceae, Iridaceae, Orchidaceae, Juncaceae, Cyperaceae, Poaceae, Pinaceae, Cupressaceae, Aspleniaceae, Polypodiaceae.