Description & Remarks
A medium subshrub, to 30 cm tall, to 35 cm wide. Grows in extreme desert from the Dead Sea Valley and southward.
The plant is vivid green a bit greyish in winter and spring and green to yellow-grey in summer.
The whole plat is covered with dense erect bristly hairs. The leaves are lanceolate or oval-elongated, undulate or have slightly undulated margins, its veins are deeply embedded in the upper side and exerted in the lower side.
The flowers are big (5 mm), completely yellow all over, and have triangular and pointed petal lobes. The colour of the corolla fades into white or grey as the flower matures so only few young and completely yellow flowers occur in the inflorescence beside the completely white ones. These bi-coloured inflorescence is unique to this species and in the genus Heliotropium in the country, while the other species have white flowers with yellow stain in their center (except H. digynum that grows in dunes in the desert and have crème-yellow flowers).
Dar Ben-Natan 2019
The scientific name of this species is called after Wadi-el-Arba’in in south Sinai, where it was first recorded.
Translation – Sara Deutch
- Hebrew with Vowels:
- עֹקֶץ-עַקְרָב מִדְבָּרִי