A forb (sometimes spelled phorb) is a herbaceous flowering plant that is not a graminoid (grasses, sedges and rushes). The term is used in biology and in vegetation ecology, especially in relation to grasslands and understory.
"Forb" is derived from the Greek φορβή (phorbḗ), "pasture" or "fodder". The spelling "phorb" is sometimes used, and in older usage this sometimes includes graminids and other plants currently not regarded as forbs.
Forbs and guilds
Forbs are members of guilda plant species with broadly similar growth form. In certain contexts in ecology, guild membership may often be more important than the taxonomic relationships between organisms.
Forbs in informal classification
- Schröder, Hans (2009). Grasslands: Ecology, Management and Restoration. Commack, N.Y: Nova Science Publishers. ISBN 1-60692-024-3.
- Jaeger, Edmund C. (1959). A source-book of biological names and terms. Springfield, Ill: Thomas. ISBN 0-398-06179-3.
- Scott, Robert Pickett; Henry, George (2007). Liddell and Scott's Greek-English Lexicon, Abridged: Original Edition, republished in larger and clearer typeface. Simon Wallenburg Press. ISBN 1-84356-026-7.