A novel method of cross shire transect evaluation was adapted for this broadscale evaluation, or cross sectioned analysis of North Eastern NSW’s roadsides.

1. Main roads travel, by car, every month to and from Lismore to Mullumbimby and Murwillumbah, by roadways heavily and lightly infested respectively, including stopping points/plant identification and or collection under most heavily infested areas/sites, eg entire Camphor laurel canopy cover of roads and roadsides.
2. Photography. Specific photos of invasive toxic and invasive noxious weed species under Camphor laurels - taken in cases of consistently repetitive (not one off) infestations – both in and under Camphor laurels.
3. 1. Photographs of sites with multiple numbers of noxious and toxic weeds growing underneath Camphor laurel trees, to help identify location and relative toxicity and type of Camphor laurel trees.
4. Weed species not previously identified or collected by the author, ie unknown.
5. Roadsides are defined as being the area of normally vegetated land between road verge and private fencelines. Description of roadways assessed:
6. 1. Lismore to Bangalow (highway)
   2. Lismore to Corndale to Mullumbimby (district road)
   3. Mullumbimby to Billinudgel to Murwillumbah (district road)
   4. Murwillumbah to Nimbin to Lismore (highway)
7. 1. Together, all these roads and highways are considered representative of NSW’s Northeast region’s road system.