Table 1.

Eight most dominant plant species across three sites with descriptions of plant abundance and AMF communities in roots of focal species. *Plant relative abundance data were from 2008 (Reinhart 2012).

Sites	Plant species	Relative abundance in the field (mean % cover, % of 1 m2 plots with species)*	Percentage of root samples with AMF	AMF OTU richness
1	Artemisia frigida	2.3, 90	50	1
	Bouteloua gracilis	0.5, 100	50	4
	Bromus japonicus	10.7, 100	25	5
	Carex filifolia	12.1, 100	25	1
	Hesperostipa comata	58.1, 100	62.5	5
	Koeleria macrantha	2.4, 70	50	2
	Pascopyrum smithii	0.4, 100	37.5	2
	Tragopogon dubius	4.9, 100	12.5	1
2	Artemisia frigida	1.5, 10	75	2
	Bouteloua gracilis	0.8, 80	50	5
	Bromus japonicus	3.1, 100	75	5
	Carex filifolia	12.3, 40	37.5	2
	Hesperostipa comata	52.5, 100	37.5	3
	Koeleria macrantha	1.7, 80	50	7
	Pascopyrum smithii	6.7, 90	25	2
	Tragopogon dubius	13.1, 100	50	3
3	Artemisia frigida	9.3, 90	0	0
	Bouteloua gracilis	0.1, 60	25	7
	Bromus japonicus	3.7, 90	50	1
	Carex filifolia	32.6, 100	50	2
	Hesperostipa comata	31.8, 100	62.5	6
	Koeleria macrantha	3.2, 100	0	0
	Pascopyrum smithii	4.9, 100	37.5	3
	Tragopogon dubius	0.9, 80	0	0