We have collected various kind of phenotypes, including those of morphology, responsibility to environmental factors. They are standardized by combination of ontology terms and properties. Phenotypes for morphology are standardized using Plant Ontology (PO) or Trait Ontology (TO), with Phenotype Ontology (PATO). PATO is the vocabulary covering terms of characcteristics such as "large" and "long". PO and TO are the vocabularies covering names of organs and developmental stages. Phenotypes of biochemical characteristics or stress tolerance can be expressed using Gene Ontology (GO), ChEBI etc. Some phenotypes are observed under some specific environements such as "long-day condition". Such phenotypes have links to environmental factors standardized and listed in another class.