Flora

Euphorbia guyoniana Boiss. & Reut., it is a perennating herb, up to 60 (-100) cm tall, ascending to erect. Leaves distant, alternate, linear-subulate, usually c. 5-10 (-15) mm long, deflexed. Ray and raylet leaves ovate-rhombic, acutish, usually 2-3. Rays terminal and axillary, 2-4, elongated, ending in single cyathium on each branch. Glands on cyathium trasversely oblong, lobes triangular, ciliate. Capsules 2.5 mm, sphaeroid, slightly keeled. Seeds c. 2 mm, ovate, with many somewhat longitudinal rows; irregularly denticulate or tuberculate, without a conspicuous caruncle.

Flowering in: Mar-May.

Al-Jafarah Plain:  Tripoli, Abu Salim, near Tripoli. on stable sand near Eucalyptus experimental plots, plants 1955

Wild, a desert species or growing in sandy habitats. I have not found a recent record of this species in Libya so far.

This species is accepted: https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:346715-1

Link of images:  https://atlas-sahara.org/Euphorbiaceae/Euphorbia%20guyoniana/Euphorbia%20guyoniana.html,   https://www.teline.fr/en/photos/euphorbiaceae/euphorbia-guyoniana,   https://botany.cz/cs/euphorbia-guyoniana/

https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:346715-1,    https://www.ipni.org/n/346715-1,     https://www.worldfloraonline.org/taxon/wfo-0000962418,     https://www.gbif.org/species/3068310,    https://africanplantdatabase.ch/en/nomen/specie/143100/euphorbia-guyoniana-boiss-reut,  https://atlas-sahara.org/Euphorbiaceae/Euphorbia%20guyoniana/Euphorbia%20guyoniana.html,   https://botany.cz/cs/euphorbia-guyoniana/,    https://www.teline.fr/en/photos/euphorbiaceae/euphorbia-guyoniana