Nomenclature Scientific Plant Classification  Early Classification  Started by the Greek philosopher Theophrastus  Classified all plants into annuals, biennials, and perennials, according to life span  Herbs, shrubs, and trees, according to their growth habit  Modern Taxonomy  Modern classification of plants is based on Linnaeus (Carl von Lenné), a 18 th century Swedish physician and the father of taxonomy who revolutionized the field of plant and animal classification  Use of binomial nomenclature - Genus and species for scientific names  Use of trinomial nomenclature for horticultural crops  Genus, species, and cultivar for cultivated crops
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