Ecosystemic Plants Ecosystemic Plants Service plants can offer diverse ecosystem services, such as managing pests and diseases and improving soil quality. What is an Ecosystemic Plant ?These plants are grown in the same agricultural parcel as cash crops, offering various ecosystem services. Registration of Ecosystem Services Plants in the French CatalogueBefore a new variety can be placed on the market in France, it must be registered in the Official French Catalogue of species and varieties. Our ServicesGEVES provides services and analyses across all cultivated species, on seeds, seedlings, and plants.