From 1900 he taught classes in general and systematic botany.
This work also was a survey of the practices of systematic botany.
His early exposure to systematic botany continued to be useful in his career.
He taught a course in Systematic Botany for gardeners there as well.
In 1989, he was named curator of systematic botany, the first and last paying job he ever had.
The garden has an active research department, specializing in systematic botany and floristics.
It is "the first textbook of descriptive systematic botany and botanical Latin".
His numerous publications have been chiefly in the field of Systematic Botany.
He thereby initiated the use of chromosome numbers in systematic botany, a field later known as cytotaxonomy.
Wright became a full professor in systematic botany at this university in 1960, a position he held until his retirement in 1988.