Katherine L. Gross, Gary G. Mittelbach, and Heather L. Reynolds. 2005. Grassland invasibility and diversity: responses to nutrients, seed input, and disturbance. Ecology 86:476–486.

Appendix B (Table B1). A table showing species added as seed to the experimental seed addition treatments.

Scientific Name	Common Name	Family	Life form	Mean seed or fruit mass (mg)
Amorpha canescens Pursh	Lead plant	FABACEAE	shrub	2.460
Andropogon gerardii Vitman	Big bluestem	POACEAE	grass	1.057
Aquilegia canadensis L.	Columbine	RANUNCULACEAE	forb	0.900
Asclepias tuberosa  L.*	Butterflyweed	ASCLEPIADACEAE	forb	6.300
Aster oolentangiensis Riddell	Sky blue aster	ASTERACEAE	forb	0.290
Aster laevis L.	Smooth blue aster	ASTERACEAE	forb	0.540
Aster novae-angliae L.	New England aster	ASTERACEAE	forb	0.280
Aster pilosus Willd.	Frost aster	ASTERACEAE	forb	0.120
Baptisia lactea (Raf.) Thieret	White wild indigo	FABACEAE	forb	15.360
Cacalia atriplicifolia L.	Pale Indian plantain	ASTERACEAE	forb	4.380
Ceanothus americanus L.	New Jersey tea	RHAMNACEAE	shrub	3.73
Coreopsis lanceolata L.*	Lanceleaf coreopsis	ASTERACEAE	forb	0.940
Coreopsis tripteris L.*	Tall coreopsis	ASTERACEAE	forb	1.224
Desmodium canadense (L.) DC.	Showy tick-trefoil	FABACEAE	forb	6.316
Desmodium illinoense A. Gray	Illinoistick trefoil	FABACEAE	forb	6.400
Heliopsis helianthoides (L.) Sweet	False sunflower	ASTERACEAE	forb	4.240
Helianthus occidentalis Riddell*	Western sunflower	ASTERACEAE	forb	1.920
Koeleria macrantha (Ledeb.) Schultes	Junegrass	POACEAE	grass	0.120
Kuhnia eupatorioides L.	False boneset	ASTERACEAE	forb	1.060
Lespedeza capitata Michaux*	Round headed bush-clover	FABACEAE	forb	3.600
Liatris aspera Michaux*	Rough blazing star	ASTERACEAE	forb	1.940
Lupinus perennis L.*	Wild lupine	FABACEAE	forb	27.640
Monarda fistulosa L.	Bee balm	LAMIACEAE	forb	0.410
Monarda punctata L.*	Horsemint	LAMIACEAE	forb	0.310
Oenothera biennis L.	Evening primrose	ONAGRACEAE	forb	0.420
Panicum virgatumL.	Switchgrass	POACEAE	grass	1.152
Penstemon digitalis Sims	Foxglove beardtongue	SCROPHULARIACEAE	forb	0.210
Prunus serotina  Ehrh.*	Wild black cherry	ROSACEAE	tree	148.950
Potentilla arguta Pursh	Prairie cinquefoil	ROSACEAE	forb	0.150
Pycnanthemum virginianum (L.) B. L. Rob. & Fernald	Mountain mint	LAMIACEAE	forb	0.140
Quercus macrocarpa  Michaux	Burr oak	FAGACEAE	tree	3190.000
Quercus velutina  Lam.	Black oak	FAGACEAE	tree	2006.600
Ratibida pinnata (Vent.) Barnhart	Gray-headed coneflower	ASTERACEAE	forb	0.780
Rosa Carolina L.*	Wild rose	ROSACEAE	shrub	11.360
Rudbeckia hirta L.	Black-eyed Susan	ASTERACEAE	forb	0.280
Sassafras albidum (Nutt.) Nees*	Sassafras	LAURACEAE	tree	147.410
Schizachyrium scoparium (Michaux) Nash*	Little bluestem	POACEAE	grass	1.014
Silphium terebinthinaceum Jacq.	Prairie dock	ASTERACEAE	forb	16.700
Solidago rigida L.	Stiff goldenrod	ASTERACEAE	forb	0.710
Solidago speciosa Nutt.	Showy goldenrod	ASTERACEAE	forb	0.238
Sorghastrum nutans (L.) Nash	Indiangrass	POACEAE	grass	1.776
Sporobolus cryptandrus (Torrey) Gray	Sand dropseed	POACEAE	grass	0.120
Tephrosia virginiana (L.) Pers.	Goat’s rue	FABACEAE	forb	10.900
Tradescantia ohiensis Raf.*	Spiderwort	COMMELINACEAE	forb	3.430
Vaccinium angustifolium  Aiton	Low bush blueberry	ERICACEAE	shrub	44.600
Verbena stricta Vent.	Hoary vervain	VERBENACEAE	forb	0.740

   Notes: Species occurring in the experimental area or the area surrounding the plots (noted as "residents" in text) are indicated with an asterisk (*).  Authorities for scientific names from Voss (1972, 1985, 1996).

LITERATURE CITED

Voss, E. G. 1972.  Michigan Flora – A guide to the identification and occurrence of native and naturalized seed-plants of the state. Part I: Gymnosperms and Monocots, Cranbrook Institute of Science and University of Michigan Herbarium, Bloomfield Hills, Michigan, USA.

Voss, E. G. 1985.  Michigan Flora – A guide to the identification and occurrence of native and naturalized seed-plants of the state. Part II: Dicots (Saururaceae-Cornaceae), Cranbrook Institute of Science and University of Michigan Herbarium, Bloomfield Hills, Michigan, USA.

Voss, E. G. 1996.  Michigan Flora – A guide to the identification and occurrence of native and naturalized seed-plants of the state. Part III: Dicots (Pyrolaceae-Compositae), Cranbrook Institute of Science and University of Michigan Herbarium, Bloomfield Hills, Michigan, USA.