NU Plant Field Guide

Green Ash

Height: 40ft-60ft

Spread: 30ft-50ft

Native: North America

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Asteridae

Order: Scrophulariales

Family: Oleaceae

Genus: Fraxinus L.

Tolerant of salinity

Susceptible to many pests/insects

Grows quickly

Gray-brown bark with diamond shaped furrows

Tolerates full solar exposure

Prefers a moderate moisture level

Cold hardiness zone 3-9

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

https://plants.sc.egov.usda.gov/core/profile?symbol=FRLA

Sugar Hackberry

Height: 60ft-80ft

Spread: 60ft-70ft

Native: Southern United States

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Hamamelididae

Order: Urticales

Family: Ulmaceae

Genus: Celtis L.

Grows small orange-red fruits fall

Grows quickly

High wind tolerance

Tolerates partial to full solar exposure

Prefers a moderate moisture level

Cold hardiness zone 6-9

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

https://plants.sc.egov.usda.gov/core/profile?symbol=CELA

Northern Catalpa

Height: 50ft-60ft

Spread: 20ft-40ft

Native: United States

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Asteridae

Order: Scrophulariales

Family: Bignoniaceae

Genus: Catalpa Scop.

Though usually shorter, they can reach up to 100ft

Grows white orchid-esque flowers in early summer

Grows quickly

Tolerates full solar exposure

Prefers a moderate to high moisture level

Cold hardiness zone 4-8

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

https://plants.sc.egov.usda.gov/core/profile?symbol=CASP8#

Black Alder

Height: 40ft-60ft

Spread: 20ft-40ft

Native: Europe, Northern Africa, and Western Asia

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Hamamelididae

Order: Fagales

Family: Betulaceae

Genus: Alnus Mill.

Susceptible to many pests and insects

Tolerant of salinity

Polished brown bark in mature trees

Grows fast in youth

Tolerates partial to full solar exposure

Prefers a moderate to high moisture level

Cold hardiness zone 3-7

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

https://plants.sc.egov.usda.gov/core/profile?symbol=ALGL2

Miyabei Maple

Height: 35ft-45ft

Spread: 30ft

Native: Japan

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Rosidae

Order: Sapindales

Family: Aceraceae

Genus: Acer L.

Grows clusters of green-yellow flowers in spring

Bark is dark gray and rough

Not susceptible to most pests

Has a shorter trunk

Tolerates partial to full solar exposure

Prefers a moderate moisture level

Cold hardiness zone 4-8

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

https://plants.sc.egov.usda.gov/java/nameSearch

Japanese Tree Lilac

Height: 20ft-25ft

Spread: 15ft-20ft

Native: Northern China

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Asteridae

Order: Scrophulariales

Family: Oleaceae

Genus: Syringa L.

Grows slowly

Tolerant of salinity

Attractive bark, smooth and reddish-brown

Grows large clusters of cream-colored flowers in summer

Tolerates partial to full solar exposure

Prefers a low to moderate moisture level

Cold hardiness zone 3-7

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

https://plants.sc.egov.usda.gov/core/profile?symbol=SYPE4

Swedish Mountain Ash

Height: 25ft-35ft

Spread: 30ft

Native: Sweden

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Rosidae

Order: Rosales

Family: Rosaceae

Genus: Sorbus L.

Not susceptible to most pests

Grows bright, orange-red clusters of fruit in late summer

Round branching pattern

Tolerates full solar exposure

Prefers a moderate moisture level

Cold hardiness zone 4-8

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

Korean Sun Pear

Height: 15ft-20ft

Spread: 15ft-20ft

Native: Korea

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Rosidae

Order: Rosales

Family: Rosaceae

Genus: Pyrus L.

Round branching pattern

Grows clusters of small white flowers in spring

Leaves drop sooner than most other trees

Tolerates full solar exposure

Prefers a low to moderate moisture level

Cold hardiness zone 4

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

http://temperate.theferns.info/plant/Pyrus+fauriei

Canada Red Chokecherry

Height: 25ft-30ft

Spread: 20ft

Native: North America

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Rosidae

Order: Rosales

Family: Rosaceae

Genus: Prunus L.

Grows clusters of white flowers in spring

Grows dark purple, round, edible fruits

Grows very fast

Tolerates full solar exposure

Prefers a moderate moisture level

Cold hardiness zone 2-7

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

https://plants.sc.egov.usda.gov/core/profile?symbol=PRVI

Persian Parrotia

Height: 20ft-30ft

Spread: 15ft-25ft

Native: Northern Iran

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoiliophyta

Class: Magnoliopsida

Subclass: Hamamelididae

Order: Hamamelidales

Family: Hamamelidaceae

Genus: Parrotia Mey.

Irregular branching patterns

Grows showy, red flowers in early spring

Ornamental. gray, mottled bark

Tolerates partial to full solar exposure

Prefers a moderate moisture level

Cold hardiness zone 4-8

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

https://plants.sc.egov.usda.gov/core/profile?symbol=PAPE18

Amur Maackia

Height: 20ft-30ft

Spread: 20ft-30ft

Native: Russia and Eastern Asia

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Rosidae

Order: Fabales

Family: Fabaceae

Genus: Maackia Rupr.

Upright arching, crown-like branching pattern

Brown, shiny bark

Grows very slowly

Tolerates full solar exposure

Prefers a moderate moisture level

Cold hardiness zone 3-7

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

https://plants.sc.egov.usda.gov/core/profile?symbol=MAAM9

Golden Rain Tree

Height: 30ft-40ft

Spread: 30ft-35ft

Native: Northern China, Korea, and Japan

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Rosidae

Order: Sapindales

Family: Sappindaceae

Genus: Koelreuteria Laxm.

Very heat tolerant

Grows clusters of yellow flowers in the summer

Tolerant of salinity

Tolerates full solar exposure

Prefers a low to moderate moisture level

Cold hardiness zone 5-9

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

https://plants.sc.egov.usda.gov/core/profile?symbol=KOPA

Washington Hawthorn

Height: 20ft-30ft

Spread: 20ft-25ft

Native: Southern United States

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Rosidae

Order: Rosales

Family: Rosaceae

Genus: Crataegus L.

Dense branching pattern

Historically susceptible to the lacebug

Grows bright red clusters of fruit through winter

Tolerates full solar exposure

Prefers a low to moderate moisture level

Cold hardiness zone 3-8

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

https://plants.sc.egov.usda.gov/core/profile?symbol=CRPH

American Smoketree

Height: 20ft-30ft

Spread: 15ft-30ft

Native: Southern United States

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Rosidae

Order: Sapindales

Family: Anacardiaceae

Genus: Cotinus Mill.

Grows a light purple flower in clusters in the spring

Stems can be orange

Has a shorter trunk

Tolerates full solar exposure

Prefers a moderate moisture level

Cold hardiness zone 4-8

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

https://plants.sc.egov.usda.gov/core/profile?symbol=COOB2

Cornelian Cherry dogwood

Height: 20ft-25ft

Spread: 20ft

Native: Western Asia and Europe

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Rosidae

Order: Cornales

Family: Cornaceae

Genus: Cornus L.

Grows small cherry-like red fruits

Grows small yellow flowers in spring

Scaly brown-gray bark

Tolerates partial to full solar exposure

Prefers a moderate moisture level

Cold hardiness zone 4-8

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

https://plants.sc.egov.usda.gov/core/profile?symbol=COMA21

Eastern Redbud

Height: 20ft-30ft

Spread: 25ft-35ft

Native: Eastern North America

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Rosidae

Order: Fabales

Family: Fabaceae

Genus: Cercis L.

Tolerates salinity

Heart shaped leaves

Grows edible purple flowers in spring

Tolerates partial to full solar exposure

Prefers a low to moderate moisture level

Cold hardiness zone 4-8

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

https://plants.sc.egov.usda.gov/core/profile?symbol=CECA4

Ironwood

Height: 25ft-30ft

Spread: 20ft-25ft

Native: Eastern North America

Kingdom: Plantae

Subkingdom: Tracheobionta

Superdivision: Spermatophyta

Division: Magnoliophyta

Class: Magnoliopsida

Subclass: Hamamelididae

Order: Fagales

Family: Betulaceae

Genus: Carpinus L.

Sensitive to salinity

Grows very slowly

Smooth, gray bark

Tolerates low to partial solar exposure

Prefers a moderate moisture level

Cold hardiness zone 3-9

Sources: http://www.hort.cornell.edu/uhi/outreach/recurbtree/pdfs/~recurbtrees.pdf

https://plants.sc.egov.usda.gov/core/profile?symbol=CACA18