The abundances of plant species are often measured by plant cover, which is the relative area covered by different plant species in a small plot. Plant cover is not biased by the size and distributions of individuals, and is an important and often measured characteristic of the composition of plant communities.[1][2]
^Kent, Martin; Coker, Paddy (1994). Vegetation description and analysis : a practical approach. Chichester New York: Wiley. ISBN978-0-471-94810-0. OCLC32234336.
^Grant, S. A. (1993). Resource description: Vegetation and sward components. In A. Davies, R. D. Baker, S. A. Grant, & A. S. Laidlaw (Eds.), Sward measurement handbook (2nd ed., pp. 69–98). British Grassland Society, Reading.