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Jackson Hole thistle
Scientific Name: Cirsium subniveum
Family: Asteraceae
Category: Dicot
Growth: Forb/herb
Duration: Perennial
Other Names:
Jackson Hole Thistle
This page provides information about the Jackson Hole Thistle, a native forb/herb found in the United States.
Considerations for Pets and Children
- This plant is a thistle and is therefore prickly.
Scientific Name and Common Names
- Scientific Name: Cirsium subniveum Rydb.
- Common Names: Jackson Hole Thistle, Gray Thistle
Taxonomy and Nomenclature
- Family: Asteraceae (implied from genus Cirsium)
- Rank: Species
- Synonyms: Greene's (Implied)
Distribution and Habitat
- Native to the U.S.
- Specifically found in the Jackson Hole area of Wyoming.
- Grows from desert scrub to the upper conifer forest and along mountain streams and in wet meadows.
Morphological Characteristics and Growth Habits
- Described as a forb/herb (a non-woody plant that is not a grass).
- A prickly thistle.
Ecological Role
- Some thistles, like bull thistle (Cirsium vulgare), are considered noxious weeds. The text references the need to control noxious weeds in Teton County, WY, including Canada thistle, musk thistle, and bull thistle.
Genetic Information
- The text mentions a sequence usually encoded in the trnK tRNA gene intron. It suggests this sequence assists in splicing its own and other chloroplast group II introns.
Interactions with Other Organisms
- Mention of "Fly Resting At The Bottom Of A Round Thistle Flower" indicates that the Jackson Hole thistle serves as food/shelter for insects.
- Bees utilize several thistle species.
Resources and Further Information
- USDA PLANTS Database: Referenced as a source for common names.
- Discover Life: Offers a page about the biology, natural history, ecology, identification, and distribution of Cirsium subniveum.