Light blue snake weed (species: Stachytarpheta jamaicensis) in taxonomy (Lizard Island Field Guide)
Stachytarpheta jamaicensis
Light blue snake weed

©Anne Hoggett: Light blue snake weed in flower, Lizard Island airstrip

©Anne Hoggett: Non-flowering Light blue snake weed at Lizard Island airstrip

©Anne Hoggett: Flower of Light blue snake weed at Lizard Island
Kingdom Plantae
Division Charophyta
Class Equisetopsida
Order Lamiales
Family Verbenaceae
Genus Stachytarpheta
Species Stachytarpheta jamaicensis



Distinguishing features

A small shrub with serrated, opposite leaves and long, thick curved terminal spikes bearing numerous small purple flowers.


  • Size data has not been obtained.



A native of central America that has become naturalised in much of tropical Australia. It is regarded as an environmental weed in Queensland.

by Anne Hoggett


©Atlas of Living Australia: Australian distribution

Local abundance

  • Lizard Island, Queensland, Australia: Common around the airstrip; uncommon at the Research Station (actively eradicated).

Web resources


  • Colvill, A., M. Ahmet, S. Clag and B. Haigh (2004). Lizard Island fauna and flora sampling report.Queensland Parks and Wildlife Service. LIRS catalog number 10067.
  • De Sloover, J.R. and S. LiĆ©geois (1997). Eagle Island, flora and vegetation (Queensland, Australia), Bull. Jard. Bot. Nat. Belg./ Bull. Nat. Plantentuin Belg., 66: 347-383. LIRS catalog number 526.
  • Smith, G.C. (1987). The birds of Eagle Island, a tropical sand cay on the northern Great Barrier Reef, Australia, The Sunbird, 17(1): 1-11. LIRS catalog number 245.