Tasmanian blue gum,

Eucalyptus globulus (Tasmanian blue gum) [leaf, calyx] (Myrtaceae) Eucalyptus globulus, E. macrocarpa (Myrtaceae)... 

Widespread Gossypium herbaceum (Malvaceae) [flower], Moms alba (mulberry) (Moraceae) [leaf] Widespread Chamaemelum nobile (Asteraceae), Quercus tinctoria (Fagaceae) [bark], Hypericum brasiliense (Hypericaceae) [leaf, flower], Eucalyptus gbbulus (Tasmanian blue gum), Myrcia multiflora (Myrtaceae) [leaf], Polygonum spp. (Polygonaceae)... 

Common/vernacular names Blue gum, Tasmanian blue gum, fever tree, and gum tree. 

Eucalyptus globulus Tasmanian blue gum Insect repellent... 

Some Australian native plants had been associated with the treatment and/or prevention of mosquito-borne disease. There have been suggestions that the bark of tropical rainforest tree Alstonia scholaris (L.) R. Br. (dita bark) has been used as an antimalarial, but clinical trials have shown that alkaloids in the bark of this, and the closely related species Alstonia constricta F. Muell. (bit-terbark), have little antimalarial activity. Eucalyptus globulus Labill (Tasmanian blue gum) had sometimes been referred to as fever prevention tree with a belief that the use of the oil prevented malaria. Similarly, many anecdotal reports of Melaleuca quinquenervia (Cav.) S. T. Blake (broadleaved paperbark) may prevent disease by repelling mosquitoes. Unfortunately, there is no current evidence that Australian native plants provide a suitable treatment for malaria. ... 

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