Jacaranda Juss.

Mostly medium-sized to large trees (some Brazilian species are shrubs or subshrubs). Leaves usually bipinnate (rarely pinnate or even simple in some Brazilian species). Inflorescence a few-to many-flowered terminal or axillary panicle, sometimes from the old wood. Flowers with the calyx short and broadly campanulate to cupular, more or less truncate, usually 5-denticulate or acutely 5-lobed; corolla blue or blue-purple tubular-campanulate, pubescent to essentially glabrous outside; anthers glabrous, often 1-thecate, the staminode elongate, ex-ceeding the stamens, variously glandular-pubescent especially at the tip; pollen grains 3-colpate, the exine smooth; ovary flattened-cylindrical, glabrous or pu-bescent (even in the same species), the ovules ca. 8-seriate in each locule; disc pulvinate. Fruit an oblong capsule strongly flattened perpendicularly to the septum, dehiscing perpendicularly to the septum and parallel to the plane of compression, the valves variously glabrous or lepidote, often with undulate mar-gins; seeds thin, winged, the wings membranaceous, hyaline or brownish.