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fringed thistle
Scientific Name: Cirsium centaureae
Family: Asteraceae
Category: Dicot
Growth: Forb/herb
Duration: Perennial
Other Names:
Sonchus asper: The Prickly Sow-Thistle
Sonchus asper, commonly known as the prickly sow-thistle, rough milk thistle, spiny sowthistle, sharp-fringed sow thistle, or spiny-leaved sow thistle, is a widespread plant with a variety of uses.
Considerations for Pets
- The plant has spiny leaves.
Considerations for Children
- The plant has spiny leaves.
Taxonomy and Nomenclature
- Scientific Name: Sonchus asper
- Common Names: Prickly sow-thistle, rough milk thistle, spiny sowthistle, sharp-fringed sow thistle, spiny-leaved sow thistle.
- Family: Asteraceae (implied from mentions of related species like Short-fringed Knapweed)
- Sonchus asper var megalocarpus Hookf. is a listed infraspecific rank
Morphological Characteristics
- The plant is distinguished by leaves somewhat similar to dandelion, but with a fat triangle on the leaf tips.
Interactions with Other Organisms
- The fringed thistle (Cirsium species) is affected by an introduced beetle, a weevil, in subalpine meadow and riparian communities.
Related Species
- Cirsium centaureae (Fringed thistle)
- Cirsium remotifolium var. odontolepis (Pacific Fringed Thistle)
- Cirsium clavatum (Fish Lake thistle)
- Cirsium carolinianum (Soft thistle)
- Actites megalocarpus (Dune Thistle)
- Platanthera leucophaea (Eastern prairie fringed orchid)