Woody perennial with stiff erect or spreading stems, up to 20cm in height. Leaves: Opposite, grey/green, stiff with two or three pairs of spines on the margins. Flowers: Purple, borne among spiny bracts, the three lobed lip has dark purple veins. Fruit: Flattened capsule, hidden among spiny bracts. Seeds hairy becoming mucilaginous when wet. Flowering period: Most of the year. Habitat: Common in gravel deserts. Found in Northern Oman. Altitude: up to 800m. Uses: As a fodder for donkeys. Note: Attracts the yellow parsley butterfly (Precishierta).