Region: paleotropical.
habita: cold desert biosphere.
Use: herbal medicine; Ayurveda, Patala = Stereospermum suaveolens.
Content: naphthoquinone lapachol; 6-sitosterol, n-triacontanol; dehydro-a-lapachone; dehydrotectol; flavone glycoside scutellarein, dinatin-7-glucuronide; non-drying oil, bitter substances, sterols, glycosides, glyco alkaloids; scutellarein, dehydrotectol; ceryl alcohol; oleic, palmitic, stearic acid; Lapachol, showed highly significant activity against walker 256 carcinoma.
Botany: tree, 25 m high; stem brown to creamy, rough, with vertical fissures, cracks, ridges, transverse fine lenticels, internally dark brown, lamellation of stratification due to presence of concentric bands of fibers.