MISSOURI BOTANICAL GARDEN BULLETIN 129 
Botanical name Common name 
2. LESS SMOKY CITY CONDITIONS 
Baccharis halimifolia..........cceeeee Groundsel bush 
Calycanthwus florvidus...ccccccccccsees Strawberry bush 
Cephalanthus occidentalis........-... Button-bush 
Cornus alternifolia.......ccccccece ...Alternate-leaved dogwood 
COrnus AMOMUN (66a calcce cies cvicee ce Silky cornel 
COTTUS DONACWIOLAT pewisievasrs ce sete ees Gray cornel 
Halesia terrvapigrd wncccelce ss cceese se 60's Silver-bell 
ICHALS ICODGUANG sick ca nies st ca cect ees Dwarf sumac 
NUS TYUDNANG oo odaes es eie «caw olen ea se Staghorn sumac 
FOO TAS DtIG, 2.25.5 « ocie a slals oeisie's avers Rose acacia 
PREG SCLSO ET G10. 1c sie isialantieciitee che cess ee Prairie rose 
Spiraea salicifolia var. alba.......... Willow-leaved spiraea 
Spiraea Dowuglastt......ccccccccccsecs Douglas’ spiraea 
XIV. NATIVE PLANTS FOR GROUND COVERS 
Low, compact plants which will spread sufficiently to cover 
the ground are often useful in the planting of gardens. This 
class of planting material is extensively used in the Eastern 
states to cover embankments, terraces, bare edges of shrubbery 
plantations, thereby connecting them with the lawn, and un- 
der deep-rooting trees in place of grass. The species adapted 
for this purpose, when we exclude exotic materials, are not 
numerous but sufficient for a variety of uses. Two species, 
Lysimachia Nummularia and Vinca minor, are not native but 
are so generally found escaped from cultivation that they may 
almost be regarded as indigenous. Clay loam is the preferred 
soil condition for plants of this type. 
Approx. 
Common Approx. Color of : 
Botanical name nanié height. flowers voedeg Remarks 
oom 
Achillea Millefolium.Yarrow ...... 1-3’ ..White....June-Oct.. If closely cut 
Achillea Mille- forms dense mat. 
folium rubrum..... Yarrow o.ccs 13) cscs ee June-Oct.. If closely cut 
Achillea Mille- forms dense mat. 
folium roseum..... Yarrow ..c.6. 1-3’ ..Purple....June-Oct...If closely cut 
Convallaria majalis. ..Lily-of-the- forms dense mat. 
valley ..... 6-8” ..White.... April-May Foliage dies early. 
Lysimachia 
Nummularia ...... Moneywort ..2-4” ..Yellow...June-Aug..Much used on 
Malwa rotundifolia...Dwarf terraces. 
mallow 6.268". WB e sce: <re PMISEV ni SV pipe e's Uptataeaie le cle cranaterete 
Potentilla canadensis.Five-finger ......... Yellow....April-Aug. Prostrate, long 
Sedum pulchellum...Widow’s runners. 
CTORS) 15.0 a705 6-12”. .Rose- 
DUE Dee Pe ULL 6 3's 5 5 9 oe he ss sleleete 
Vinca minor......... Periwinkle ..4-6” ..Blue..... April-May.Used for grave 
covers. 
