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Osterhout's thistle
Scientific Name: Cirsium osterhoutii
Family: Asteraceae
Category: Dicot
Growth: Forb/herb
Duration: Perennial
Other Names:
Osterhout's Thistle (Cirsium osterhoutii)
Also known as Jeweled Thistle, Osterhout's Thistle (Cirsium osterhoutii) is a forb/herb, meaning it is a non-woody plant that is not a grass. It is one of many species within the Cirsium genus, commonly known as thistles.
Considerations for Pets
- According to the provided information, Osterhout's Thistle is not considered safe for dogs or cats.
Taxonomy and Nomenclature
- Scientific Name: Cirsium osterhoutii (Rydb.) Petr.
- Common Name: Osterhout's Thistle, Jeweled Thistle
- Rank: Species
- Family: Asteraceae
- Synonym: Carduus osterhoutii Rydberg
- Variety: Cirsium clavatum var. osterhoutii (Rydb.) D.J. Keil
Morphology and Growth Habits
- Osterhout's Thistle is described as a forb/herb, meaning it's a non-woody plant that is not a grass.
Related Cirsium Species
- Cirsium clavatum (M.E. Jones) Petr. - Fish Lake Thistle
- Cirsium vulgare (bull thistle, common thistle, or spear thistle)
- Cirsium ownbeyi - Ownbey's Thistle
- Cirsium acarna - Soldier Thistle
- Cirsium acaule - Stemless Thistle, Dwarf Thistle
- Cirsium pallidum
- Cirsium hydrophilum (Greene) Jepson - Suisun Thistle
- Cirsium modestum (Osterhout) Cockerell - Lacy Thistle
- Cirsium acuatum (Osterhout) Petrak - Gray Thistle, Tracy's Thistle, Wavyleaf Thistle
- Cirsium douglasii DC. var. douglasii - Douglas' Thistle
- Cirsium laterifolium (Osterhout) Petrak - Porcupine Thistle