The morphological classification of napier is Pennisetum purpureum.

The current galaxy classification is based on.

* The Hubble sequence is a morphological classification scheme for galaxies invented by Edwin Hubble in 1936 * The de Vaucouleurs system for classifying galaxies is a widely used extension to the Hubble sequence, first described by Gérard de Vaucouleurs in 1959. * The Yerkes (or Morgan) scheme uses the spectra of stars in the galaxy

morphological, microscopical, chemical, physical, biological

Dichotomous keys are typically based on a morphological approach to classification, using observable physical characteristics to identify and classify organisms. This method involves sorting organisms into groups based on shared physical traits rather than evolutionary relationships.