Andrew S. MacDougall and Roy Turkington. 2005. Are invasive species the drivers or passengers of change in degraded ecosystems? Ecology 86:42–55.

Appendix C. Perennial grass species used in the seed addition experiment.

Species	Seed mass (mg)	Growth form	Phenology	Soil depth (cm)	Frequency (%)	Maximum ht (cm)
Anthoxanthum odoratum L.	0.5	bunchgrass	March–May	19.9	69.3	87
Bromus carinatus Hook. & Arn.	9.2	bunchgrass	May–July	27.3	82.5	143
Dactylis glomerata L.	1.4	bunchgrass	June–July	27.6	98.6	139
Danthonia californica Boland	1.9	bunchgrass	May–July	14.7	0.3	64
Elymus glaucus Buckl.	4.6	bunchgrass	May–June	15.7	1.0	153
Festuca roermeri Elmer	1.2	bunchgrass	May–June	11.5	0.06	68
Poa pratensis L.	0.2	rhizomatous	June–July	31.9	100	107

   Notes: Soil depths are averages from plots where the species were observed.  Frequency is the percentage of plots containing each species (n = 120 plots). Maximum height = the average maximum height of each species.