blacklocust - Fabaceae Robinia pseudoacacia

Foliage

blacklocust Foliage

Bark

blacklocust Bark

Flower

blacklocust Flower

Fruit

blacklocust Fruit

Form

blacklocust Form
Download Identification Card

Video

ROPS

Taxonomy

FamilyFabaceae
GenusRobinia
Speciespseudoacacia
Common Nameblacklocust
iTree CodeROPS

Plant Form

FormTree: medium with narrow crown
Height50 feet
Spread35 feet
DeciduousYes

Identification Description

Foliageboard-oval leaflets (9-17) with smooth edges, light green; leaflets thinLeaf Type Information IconCompound - Pinnate
Needles0
Barkgray/brown furrowed, with rope-like ridges, may appears orange under the ridge
BudSmall, red or rusty colored.Bud Arrangement Information IconAlternate
TwigAlternate branching gives a zig-zag look, spiny, paired stipular spines at nodes,
Flowerwhite flowers, very fragrant, perfect (May-June)
Fruitbrown seed pod (a legume) 2-4" long
Fall Colorslight yellow-green

Site Characteristics

USDA Zones   info for zonespH LevelsSalt Tolerance
Min3aMin4.5SoilHigh
Max8aMax8.1SprayHigh

Shade ToleranceDrought ToleranceAllelopathy
IntolerantHighYes

Species Status

Nebraska Native
U.S. NativeYes Check
Region of OriginUnited States