Table 3. (continued) Scientific name WoNS Flora Naturalised Reference to Locations Details (common name) Base in WA 26th parallel Yes Yes Yes Below Goldfields and Goldfields; Opuntia monacantha (smooth tree pear) wheatbelt Oldfield River in Ravensthorpe Opuntia polyacantha Yes Yes Below Wheatbelt No data locations Yes Below Goldfields and Zanthus Opuntia puberula wheatbelt Opuntia stricta Yes Yes Yes Both Pilbara, Largest known infestation, at Scaddan, is (prickly pear) Goldfields, estimated at being 2.5-3 km long and about 1 south coast km wide at its widest point (~300 ha) Opuntia tomentosa Yes Yes Below Goldfields Coolgardie area Januszkiewicz, pers. comm.) Opuntia WA’ Yes Yes Below Goldfields Tarmoola Station ‘sp. unknown Gwalia town site (possibly an O. microdasys hybrid, Bob Chinnock, pers. comm.) Opuntia sp. unknown Yes Yes Below Goldfields Found by Megan Muir, DPaW, as part of Great Western Woodland weed survey.
Table 3. (continued) Scientific name (common name) WoNS Flora Base Naturalised in WA Reference to 26th parallel Locations Details Opuntia monacantha (smooth tree pear) Yes Yes Yes Below Goldfields and wheatbelt Goldfields; Oldfield River in Ravensthorpe Opuntia polyacantha Yes Yes Below Wheatbelt locations No data Opuntia puberula Yes Below Goldfields and wheatbelt Zanthus Opuntia stricta (prickly pear) Yes Yes Yes Both Pilbara, Goldfields, south coast Largest known infestation, at Scaddan, is estimated at being 2.5-3 km long and about 1 km wide at its widest point (~300 ha) Opuntia tomentosa Yes Yes Below Goldfields Coolgardie area Januszkiewicz, pers. comm.) Opuntia ‘sp. WA’ unknown Yes Yes Below Goldfields Tarmoola Station Gwalia town site (possibly an O. microdasys hybrid, Bob Chinnock, pers. comm.) Opuntia sp. unknown Yes Yes Below Goldfields Found by Megan Muir, DPaW, as part of Great Western Woodland weed survey.