Appearance: Evergreen, unarmed tree to 15 m (50 ft) tall, with compact spread, often multi-stemmed; young growth glaucous.
Leaves: Alternate, simple, reduced to flattened blade-like phyllodes slightly curved, 11–20 cm (5–8 in) long, with 3–7 main parallel veins and a marginal gland near the base; surfaces dark green.
Flowers: Loose, yellow-orange spikes at leaf axils or in clusters of spikes at stem tips; flowers mimosa-like, with numerous free stamens.
Fruit: Flat, oblong pod, twisted at maturity, splitting to reveal flat black seeds attached by orange, string-like arils.
Ecological threat: Has invaded pinelands, scrub, and hammocks in south Florida. Displaces native vegetation, and threatens to shade out rare plants. FLEPPC Category I
Distribution: SW, SE
Text from Invasive and Non-Native Plants You Should Know, Recognition Cards, 2007. UF/IFAS Center for Aquatic and Invasive Plants, Publ. No. SP 431.
1. Identification and Biology of Nonnative Plants in Florida’s Natural Areas – Second Edition, by K.A. Langeland, H.M. Cherry, et al. University of Florida-IFAS Publication # SP 257. 2008.
2. Strangers in Paradise, Impact and Management of Nonindigenous Species in Florida, Chapter 2: Florida’s Invasion by Nonindigenous Plants: History, Screening, and Regulation, by D.R. Gordon and K.P. Thomas, pp. 21-37. Island Press, Washington, DC, 1997.
3. Invasive and Non-native Plants You Should Know - Recognition Cards, by A. Richard and V. Ramey. University of Florida-IFAS Publication # SP 431. 2007.
4. Integrated Management of Nonnative Plants in Natural Areas of Florida, by K. A. Langeland, J. A. Ferrell, B. Sellers, G. E. MacDonald, and R. K. Stocker. University of Florida-IFAS Publication # SP 242. 2011.