Key to Tasmanian Dicots
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Lactuca (Asteraceae) 2:388
Tasmania has two introduced species of Lactuca (lettuces). These are both short-lived herbs with rosettes and erect, leafy stems. L. serriola is a common weed along roads and on waste ground and has distinctively spiny leaves (which may be unlobed or have shallow pinnate lobes). L. saligna  is less common and has narrow, smooth leaves.
 
 

Key to species 
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Contact: Greg.Jordan@utas.edu.au