The beginnings of modern-style classification systems can be traced to the 1500s-1600s when several attempts were made to scientifically classify plants.

In the last two decades of the 20th century, DNA was used to more accurately classify plants.

Linnaeus developed systematic methods for classifying and naming plants and animals.

He taught Linnaeus to classify plants according to Tournefort's system.

In his works he classified plants according to their fruits and seeds, rather than alphabetically or by medicinal properties.

Man's attempts to classify plants, minerals, fossils, flora and fauna started in the Renaissance, if not before.

Humans everywhere classify animals and plants into obvious species-like groups.

Naturalists find new species and classify plants and animals.

Students are taught to measure soil quality, monitor tree renewal and classify plants and animals.

Instead he classified plants by observation according to similarities and differences.