Concept
Version 7
Created by Boundless
The Evolution of Roots in Seedless Plants
Root types
(a) Tap root systems have a main root that grows down, while (b) fibrous root systems consist of many small roots.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"Robert Bear and David Rintoul, The Plant Body. November 17, 2013."
http://cnx.org/content/m47400/latest/
OpenStax CNX
CC BY 3.0.