The primary root (radicle) is not dominant in relation to those of its secondary and tertiary branches.

A plant root system in which there are several main roots with many smaller branching roots.

FI-bres ROOT sis-tum A plant with short-lived first roots. 546

A type of root system consisting of many branching roots

A plant root system having a large number of small, finely divided, widely spreading roots, but no large taproots. Typified by grass root system. cf. taproot system.

A plant root system that consists of many roots all about the same size.

A fibrous root system (sometimes also called adventitious root system) is the opposite of a tap root system. It is usually formed by thin, moderately branching roots growing from the stem.