© 2009 K

ay Yatskievych

Robinia pseudoacaciaBlack Locust

Indiana Species Pages© 8 July 2009 Kay Yatskievych • Kay.Yatskievych@mobot.org

© 2009 S

am P

ostlethw

ait

© 2009 S

am P

ostlethw

ait

© 2009 S

am P

ostlethw

ait

• http://www.mobot.org/MOBOT/Research/curators/kay.shtml

Family: Fabaceae [Gleason andCronquist 1991; Judd et al. 2007]

Notes:Robinia pseudoacacia is native inIndiana, but probably only in thesoutheastern part of the state.

Petals 5, 15–25 mm long, white; calyx irregu-larly 5-toothed; stamens 10; ovary 1. BloomsMay 9–June 13.

Tree to 25 m. Woods, woods margins, roadsides.

Spines to 2 cm, usuallypresent at bases of leaves.

Inflorescence to 20 cm;leaf to 40 cm.