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- USDA_Plant_Characteristics description "From USDA Plants Project: \"We have Characteristics for about 2000 conservation plant species and 500 additional cultivars. (A cultivar is a variety, strain, or race that has originated and persisted under cultivation or was specifically developed for cultivation; cultivar is the cultivated plant equivalent of botanical variety.) Mostly we have species (not cultivar) data since conservation plants are primarily native plants without named cultivars. We also have this species data for most of the plants that have cultivar data, and the data ranges for a species generally encompass the ranges for its cultivar(s). In a few cases we have cultivar data only.\n\nThese data have been gathered from the scientific literature, gray literature, agency documents, and the knowledge of plant specialists. Characteristics data values are best viewed as approximations since they are primarily based on field observations and estimates from the literature, not precise measurements or experiments. Characteristics for the many conservation plant species native to the U.S. were typically provided by experts familiar with the species in its natural setting. Most values given apply to plants nationwide. Many values are relative to other species since absolute figures are not available\"".
- USDA_Plant_Characteristics type Class.
- USDA_Plant_Characteristics isDefinedBy geospecies.owl.
- USDA_Plant_Characteristics label "USDA_Plants_Characteristics".
- USDA_Plant_Characteristics subClassOf Concept.