Common name: Black Locust
Robinia pseudoacacia L. APNI* 
Description: Tree to 10 m high, spreading by root suckers.
Leaves 8–15 cm long; leaflets 11–21, oblong to obovate, 2–5 cm long, 1–2.5 cm wide, apex often notched, margins entire, sparsely hairy but ± glabrescent with age; petiole 2–4 cm long; lateral petiolules 1–3 mm long; stipular spines 5–25 mm long.
Racemes 10–15 cm long; pedicels 5–10 mm long. Calyx c. 6 mm long. Corolla 15–20 mm long, white, pink or purple.
Pod 3–8 cm long, 10–15 mm wide, glabrous; seeds few, black.
Flowering: spring.
Distribution and occurrence: Often cultivated as an ornamental, occasionally naturalized. Native of N Amer.
NSW subdivisions: *NC, *CC, *SC, *NT, *CT, *ST, *NWS, *CWS, *SWP
Other Australian states: *Qld *S.A.
See also NSW WeedWise profile.
Text by G. J. Harden; edited by P. Lu-Irving (Nov 2024)
Taxon concept: Flora of NSW 2 (1991)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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