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clustered thistle
Scientific Name: Cirsium brevistylum
Family: Asteraceae
Category: Dicot
Growth: Forb/herb
Duration: Annual, Biennial, Perennial
Other Names:
Indian Thistle (Cirsium brevistylum)
Cirsium brevistylum, commonly known as Indian thistle or clustered thistle, is a species native to western North America.
Considerations for Pets
- As a thistle, this plant may have spines or prickly parts.
Considerations for Children
- As a thistle, this plant may have spines or prickly parts.
Taxonomy and Nomenclature
- Scientific Name: Cirsium brevistylum
- Common Names: Indian thistle, clustered thistle, short-styled thistle
- Family: Asteraceae (Aster family)
- Synonyms: USDA Symbol: CIBR2
Distribution and Habitat
- Native to western North America.
- Frequently found in abandoned fields and areas of garrigue and steppe.
- Observed in locations such as the Strawberry Mountain Wilderness and western Montana.
Morphology and Growth Habits
- A perennial plant growing up to 1.8 meters (6 feet) tall.
- Flowers are hermaphrodite (have both male and female organs).
- Flowers are often clustered at the ends of branches, typically purple in color, and 1½ to 2 inches in diameter.
Ecology
- Pollinated by insects.
- Native thistles, including Cirsium brevistylum, provide food for insects.
Quirky Facts
- All thistles are reportedly edible.
Further Information
- Discover Life offers a page about the biology, natural history, ecology, identification, and distribution of Cirsium brevistylum.
- Dave's Garden offers a community for sharing tips and ideas for gardens, along with seeds and plants.