blacklocust - Fabaceae Robinia pseudoacacia

Foliage

blacklocust Foliage

Bark

blacklocust Bark

Flower

blacklocust Flower

Fruit

blacklocust Fruit

Form

blacklocust Form

Taxonomy

Cladeangiosperm
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 thin Leaf Type  Information Icon Compound - Pinnate
Barkgray/brown furrowed, with rope-like ridges, may appears orange under the ridge
BudSmall, red or rusty colored. Bud Arrangement Information Icon Alternate
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 zones pH LevelsSalt Tolerance
Min3a Min4.5 SoilHigh
Max8a Max8.1 SprayHigh

Shade ToleranceDrought ToleranceAllelopathy
Intolerant High Yes

Species Status

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