SHRUBS OF McGregor district 
269 
Summer grape {Vitis bicolor LeConte), upland woods, Mc- 
Gregor district. 
Virginia creeper (Psedera quinquefolia (E.) Greene), common 
in wood, forked tendrils with adhesive disks. 
Virginia creeper {Psedera vitacea (Knerr) • Greene), with disk 
tendrils. 
Mountain maple (Acer spicatum Lam.), common in woods 
along the river. 
Staghorn sumach (Rhus typhina L.)» common, banks of 
streams, branches densely hairy, fruit red, hairy. 
Common sumach (Rhus glabra L.). branches smooth, fruit 
smooth, red. 
Poison ivy (Rhus Toxicodendron L.)» common, climbing or 
erect shrub with three leaflets. 
Poison oak (Rhus V ernix L.)> in tamarack swamps near 
La Crosse. 
Lead plant (Amorpha canescens Nutt.), common, low shrub 
with whitened hoary leaves. 
False Indigo (Amorpha fruticosa Pursh), common, low 
grounds, greenish leaves. 
Sand cherry (Prunus pundla L.)j sand dunes and sandy 
prairies. 
Meadow sweet (Spiraea salicifolia L.)> in low grounds, white 
flowers. 
Steeple bush (Spiraea foment osa L.)^ on sand rocks. La Crosse 
region, rare. 
Nine bark (Physocarpus opulifolius Maxim), common, hill- 
sides. 
Dwarf raspberry (Rubus triflorus Richard), bogs. La Crosse 
region, also Winneshiek county, Shimek. 
Red raspberry (Rubus strigosus Michx), common in woods. 
Black cap raspberry (Rubus occidentale L.)> common in woods. 
Blackberry (Rubus nigrobaccus Bailey), common. 
Dew berry (Rubus canadensis L.), creeping on the ground. 
Shrubby cinquefoil (Potentilla fruticosa L.)> sandy rocks, La 
Crosse region, Winneshiek county, Shimek. 
Three toothed cinquefoil (Potentilla trideniata Ait.), rare, 
sandy rocks. La Crosse region, Winneshiek county, Shimek. 
Wild rose (Rosa blanda Ait.), woods. 
Prairie rose (Rosa pratincola Greene). 
Rose (Rosa humilis Marsh), Winneshiek county, Shimek. 
