#3418 - Salsola sp. - Russian Thistle
I'm not entirely sure on which exact species, but given the taxonomic surprises in the genus in recent years, that's not actually surprising.
Amaranths also variously known as saltwort (for their salt tolerance), tumbleweed or roly-poly. Salsola is derived from the Latin for 'salted'.
The most notorious Salsola was until recently the famous tumbleweed of the American West, Salsola tragus (AKA Kali tragus) but it was recently discovered that it's at least three species. And it's not native to the Americas - they're fearsomely invasive weeds accidently imported in flax seed from Russia in the 1870s. A large specimen of Salsola tragus may produce around 200,000 seeds, scattered across the landscape as the shrub dries out, snaps off, and rolls away with the breeze.
The plants in Australia that we thought were S. tragus are now thought to be native, and are being called Salsola australis at least until somebody can properly revise them.
Some species including tragus are edible when young, and some used as fodder, but may contain large amounts of oxalates.
Penguin Island, Perth.










