Figure 1.

Strobilanthes crispus. Strobilanthes crispus (Acanthaceae) Blume, also known by its vernacular name of 'pecah beling' or 'pecah kaca', is a flowering shrub distributed throughout the regions of Madagascar to the Malay Archipelago [11]. The plant can either be found wild in scrublands and river banks or cultivated. A mature plant may grow up to a height of 2 m. The stems are grayish in colour, the branches are dark green, the top surface of the leaves are darker green compared to the surface below, oblong to lanceolate in shape with the sides slightly crenated. Both surfaces of the leaves are very scabrid. The corollas are pubescent and yellowish while the calyx segments are covered with patent long and short hairs [12,35].