Bull's Head (species: Tribulus cistoides) in Lizard Island Field Guide (Lizard Island Field Guide)

Lizard Island Field Guide > Terrestrial Life > Terrestrial Plants > Herbs and Non-woody vines > Tribulus cistoides (gallery)

Tribulus cistoides

Bull's Head

©Anne Hoggett: Tribulus cistoides at Lizard Island: fruit at upper left of flower and pinnate leaves.

©Anne Hoggett: Fruit (at left) and flower of Tribulus cistoides at Lizard Island

©Anne Hoggett: Prostrate spreading habit of Tribulus cistoides. Lizard Island.

Kingdom Plantae

Division Tracheophyta

Class Magnoliopsida

Order Zygophyllales

Family Zygophyllaceae

Genus Tribulus

Species Tribulus cistoides

Colours

Distinguishing features still need to be specified.

Plantae: Caltrop (species: Tribulus terrestris)
has smaller flowers (5 to 15 mm diameter) than Tribulus cistoides (25 to 45 mm diameter) according to Varghese et al (2016) based on comparisons in India and the Arabian Peninsula.

Byrnes, N.B., S.L. Everist, S.T. Reynolds, A. Specht and R.L. Specht (1977). The vegetation of Lizard Island, North Queensland, Proceedings of the Royal Society of Queensland, 88: 1-15. LIRS catalog number 3.
De Sloover, J.R. and M. Dufrene (1999). Flora and vegetation of Turtell V, Turtell Islands Group (Queensland, Australia), Bull. Jard. Bot. Nat. Belg./ Bull. Nat. Plantentuin Belg., 67: 45-97. LIRS catalog number 577.
De Sloover, J.R. and A.-L. Jacquemart (2008). Nymph Island (Great Barrier Reef, Qld., Australia): Flora and vegetation of a low wooded island, Scripta Botanica Belgica, 43: 1-88. LIRS catalog number 1210.
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