M. Thulin (1993) 1: 179-186

Plants pubescent to villus annuals. Leaves stipulate; stipules linear to lanceolate, up to 8 mm long; blades 2-6 cm long with 5-8 pairs of leaflets; leaflets 4-18 mm long, 1.5-5 mm wide. Flowers pedicellate; pedicels 5-10 mm long; sepals linear-lanceolate, 3-6 mm long; petals yellow, 4-8 mm long; stamens 8-10 mm long, with filaments up to 3 mm long; gynoecia: styles very short or absent; stigmas more or less pyramidal, about 1 mm ong. Fruits disc-shaped; mericarps 4-5 mm long, 2-3 mm across, with 2 pairs of spines.

Tribulus terrestris grows in open or disturbed places, often on dry sand, at 30-1350 m. In 1993, it had been recorded from N1, N3, C1, and S1-S3 of the Flora of Somalia. It grows in tropical and subtropical regions throughout the world. 

©The Trustees of the Royal Botanic Gardens Kew. Reproduced with permission.

Mary E. Barkworth

Habit: prostrate annual herb, often with long branches, often weedy.

Leaves: opposite, even-pinnate, with 5-8 pairs of leaflets.

Flowers yellow, with 5 separate or almost separate petals.

Fruits disc-like with 4-5 mericarps each bearing 2 pairs of stiff spines. 

Tribulus terrestris  is a common, often weedy, species in sandy soils. It English name, "puncture vine" reflects the ability of the mericarps to  penetrate bicycle tires. feet, and shoes. 

Awale & Jama (2018). Hordhaca dhirta badhtamaha Soomaalilaand.

Geed-qori gu’yaal jire ah oo taagan oo leh jirrid laamo badan, oo gas badan, oo illaa 50 cm gaadha. Caleemo isku qumman, oo cufan, oo caleentiiba ka kooban tahay illaa toddoba yaryar mataano ah. Ubax keli keli u baxay, oo huruud khafiifa ah, oo leh Shan laace oo kala madax bannaan oo meel ku wada yaal. Midho Shan waaxood u qaybsan, oo middiiba ay afar qodxood oo gaar ah leedahay iyo gas.

Sabo: Meelaha burciidda leh, inta badan goobaha la deggen yahay, joog gaadhaya illaa 1200 m.

Filiqsanaanta: Harame ka baxa kulaale xigeennada.