Euryops arabicus Steud  

Usually shrubs or shrublets. Leaves alternate, long-linear, lanceolate or obovate, entire to pinnatisect Capitala heterogamous, radiate, usually terminal, corymbose, yellow. Involucral bracts 1-2-seriate, conate or distinct. Receptacle naked. Ray florets pistillate, fertile, ligulate. Disc florets hermaphrodite, fatile, tubular, tube 5-lobed. Anthers obtuse at base. Style branches linear-oblong, flattened, penicillate Achenes terete, ribbed or smooth. Pappus of few to many caducous bristles or absent.
About 70 species distributed in South Africa to Socotra and Arabia. Represented by 2 species in Saudi Arabia

Euryops arabicus Steudel Ex Jaub, & Spach, Illustr. 4: 88, t. 355. (1852). plate comp. 73, a
Euryops pinifolius auct. Geir A. Rich (1848)
Arabic names: Som, graves, jabbar, shjarl kans

Erect, much-branched small shrub up to c. 50 cm tall. Branches covered with remnants of old leaf-bases. Leaves sessile, alternate but crowded towards the branch tops, linear, glabrous, green, up to c. 40 mm long, vaguely resembling pine-leaves. Heads yellow radiate c. 10 mm across, axillary, peduncled, massed towards the tops of branches. Achenes cylindrical, ribbed, pubescent. Pappus of short white bristles.
Saudi Arabia: A distinctive high altitude plant of the Asir

Distribution: Ethiopia, Saudi Arabia, Yemen

E. arabicus
Leaves unlobed. Achenes densely lanate hairy.co1 dmA ) quid 3- Pappus hairs dull white

E. jaberiana
Leaves 3-lobed at the tips. Achenes glabrescent.a bra delonin A Pappus hairs transparent

Caule erecto, frutescente, ramoso, ramis glabris, undique foliis tectis. Foliis sesilibus, apicem dense aggregatus, 3-5 cm longa, 3-lobatus ad apicem, loba linearibus integris, c. 1 cm long. Involucri campanulate, 1-seriatis, coalitis ad medium, lobis acutis-acuminatis. Capitula heterogama, radiatus, radii flosculi pistillate; disci flosculi hermaphroditi, duo flavus. Achen c. 2 mm longum, brunneus nervatus, glabrescent. Pappi 2-3 mm longa, caducus, setis barbellatis, hyalinus

Distribution: Endemic to northern Saudi Arabia
A small, glabrous shrub up to 45 cm tall. Leaves sessile, yellowish-green, dense around the stem, linear, 3 5 cm x 1-1.5 mm, 3-lobed at the tips, lobes obtuse to somewhat acute, entire. Involucre campanulate, 5 mm long; bracts 8-10, uniseriate, connate± to the middle, lobes triangular, yellowish-green, usually with brown, longitudinal streaks, acute to acuminate. Heads solitary, axillary appearing corymbose towards the top; peduncles 5-7 cm long, slightly dilated at the top, longer than leaves; heterogamous, radiate. Ray florets yellow, 7-10 mm long, pistillate. Disc florets bisexual, yellowish2-3 mm long. Pappus hairs 10 15, unequal, simple, dentate throughout, almost transparent, 2-3 mm long, caducous. Achenes 1-2 mm long, glabrescent, terete, brown ribbed. odm Note: The genus is mainly from South Africa. E. arabicus is the only species found outside of Africa and endemic to Arabia. In Saudi Arabia it occurs in southern heights in the Juniperus procera zone. It is interesting to note that no species of Euryops is found in the neighboring countries except those mentioned above.

The present species is represented by 2 collections, S. Chaudhary and J. Thomas (16873-RIY) and I. S. Collenette 5295 (5903-RIY). Both were collected from the mountains in the N. Hijaz several hundred kms away from the place of distribution of E. arabicus in S. Hijaz and in the Juniperus phoenicea zone. The important features which differentiate the present taxon from E. arabicus are (i) 3-lobed leaves at the tips (ii) pappus hairs transparent or rarely dull white, and (iii) glabrescent achenes. In E. arabicus i) the leaves are unlobed, ii) pappus hairs are dull white and iii) achenes densely lanate hairy

The name is given in honor of Prof. Dr. Jaber Salem Mossa of the College of Pharmacy, King Sand Univ. Riyadh, a taxonomist/chemotaxonomist, in recognition of his contributions and help in the study of the flora of Saudi Arabia