Charming, but prickly at times.

Parkinsonia aculeata
Jerusalem thorn, Mexican palo verde
Small delicate fragrant light yellow flower with five separated petals, the uppermost lightly spotted with reddish brown on opening and gradually changing entirely to rust; borne in loose axillary racemes. A small extremely spiny tree with long needlelike leaves bearing tiny leaflets.

Photo Courtesy: .Bambo