Stemless Thistle
Stemless Thistle
Stemless Thistle (Onopordum acaulon)Class: Plants (Plantae) - Land Plants (Charophyta) - Land Plants (Equisetopsida)
Order: Sunflowers (Asterales)
Family: Daisy (Asteraceae)     iNaturalist Observation
Species: Stemless Thistle (Onopordum acaulon)
This Photo:     🔍In Bud🔎
Other names: Flat thistle, Horse Thistle, Stemless Onopordon or White thistle

Thank you Kai-Philipp Schablewski for confirming the id of this species for us

General Species Information:
Found on Ellura (in the Murray Mallee, SA) and elsewhere
Scattered seedlings have been found & removed. All clear at this stage.
Seedlings are soft and easy to handle. Mature plants are very prickly & large, making removal difficult. Slow growing and easy to find seedlings with regular inspections.
Silver grey in colour and has no discernible stem

Copyright © 2010-2024 Brett & Marie Smith. All Rights Reserved. Photographed 21-Nov-2010
This species is classed as If (Foreign Introduction)