Landscape Trees By Scientific Name Q-S

Scientific Name	Common Name	Comments
Quercus alba	White Oak	Size: large size tree (75' tall by 55' wide) Flowers/fruits: not significant Fall color: exceptional maroon fall color Culture: probably best in rich, deep soils Disease/insect: none significant Use: excellent, large, shade tree White oak group (rounded leaf lobes). Acorn germinates in the fall
Quercus Nigra	Water Oak	Size: medium to large sized tree (60' tall by 60' wide) Flowers/fruits: not significant Fall color: no fall color; semi-evergreen. Distinctive leaf shape Culture: adaptable to soils Disease/insect: none significant Use: shade tree Red oak group
Quercus palustris	Pin Oak	Size: medium to large sized tree (65' tall by 45' wide) Flowers/fruits: not significant. Small acorn Fall color: excellent maroon fall color Culture: fairly adaptable to most soils except high pH (Iron chlorosis) Disease/insect: none significant Use: street tree. Shade tree Red oak group (lobes pointed) Likely confused with Q. coccinea (Scarlet Oak) and Q. shumardii (Shumard Oak) in trade
Quercus phellos	Willow Oak	Size: medium to large sized tree (60' tall by 60' wide) Flowers/fruits: not significant Fall color: fair. Dull orange at best. Narrow willow-like leaves Culture: very adaptable to soils Disease/insect: none significant Use: probably in top three most common shade trees sold in Arkansas Red oak group (bristle tip; acorns ripen in 2 years)
Quercus robur	English Oak	Size: large sized tree (70' tall by 70' wide) Flowers/fruit: not significant Fall color: none Culture: very adaptable to soils Disease/insect: powdery mildew Use: never see the species in landscapes, however, the upright cultivar ('Fastigiata') is fairly common White oak group
Quercus rubra	Northern Red Oak	Size: medium to large sized tree (65' tall by 65' wide) Flowers/fruits: not significant Fall color: exceptional maroon fall color Culture: very adaptable Disease/insect: none significant Use: great shade tree Red oak group
Salix alba 'Tristis'	Weeping Willow	Size: Cascading habit; 30' tall by 35' wide Flowers/fruits: not significant Fall color: none Culture: loves wet soils, however tolerates dry soils Disease/insect: none serious Use: Useful near ponds, streams; Do not plant near septic lines; Short-lived
Salix matsudana 'Tortuosa'	Corkscrew Willow	Size: large shrub/small tree (18' tall by 12' wide) Unique twisting stems Brittle stems/messy
Sassafras albidum	Sassafras	Size: small sized native tree (22' tall by 15' wide) Flowers: pastel yellow-green in early spring Fruit: not significant Fall color: exceptional flame fall color Leaves variable in shape (look like gloves) Culture: full sun. Best in well drained soils Disease/insect: none serious Use: usually in fence rows; extremely difficult to transplant
Styrax japonicum	Japanese Snowbell	Size: small sized flowering tree (18' tall by 12' wide) Flowers: spectacular white bell-shaped flowers in May Fruit: not significant Fall color: none Culture: requires adequate moisture during summer if located in full sun Disease/insect: none serious Use: excellent, small flowering tree