Native Plants

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Smith, R.W.

Cirsium hillii

Cirsium hillii (Canby) Fernald

Hill's Thistle, Hollow-rooted Thistle, Prairie Thistle

Asteraceae (Aster Family)

Synonym(s): Cirsium pumilum ssp. hillii, Cirsium pumilum var. hillii

USDA Symbol: CIHI

USDA Native Status: L48 (N), CAN (N)

From the Image Gallery

3 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: Up to about 2 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: Pink
Bloom Time: Jun , Jul , Aug

Distribution

USA: IA , IL , IN , MI , MN , PA , WI
Canada: ON

Growing Conditions

Water Use: Medium
Light Requirement: Sun , Part Shade

Value to Beneficial Insects

Provides Nesting Materials/Structure for Native Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Additional resources

USDA: Find Cirsium hillii in USDA Plants
FNA: Find Cirsium hillii in the Flora of North America (if available)
Google: Search Google for Cirsium hillii

Metadata

Record Modified: 2022-12-23
Research By: Joseph A. Marcus

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