ROOTS:
bulb
corm
clove
creeping
crown
fiberous
rhizome
tap
tubers
Fibrous roots: Some plants have small, thin roots, all of the same length.
Creeping roots: A plant that has shallow, very long roots has creeping roots.
Tap-roots: Some plants have only one root, very thick, deep, straight, called a tap- root.
Cassava or tuberous roots: A plant that stores up reserves in thick roots has tuberous roots.
Adventitious or aerial roots: In some plants roots start from the stem above the soil, that is, above the collar, and afterwards go down into the earth. Adventitious roots grow above the collar. For example, mangrove, bamboo, maize and rice all have adventitious roots.
SOURCE: https://danger.mongabay.com/survival/afm/09-01.html