Wild Florida Photo - Cirsium horridulum

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Cirsium horridulum




Florida native


A common wildflower of flatwoods and disturbed sites in nearly all of Florida. The range extends throughout the southeastern states west into Oklahoma and Texas, and up the eastern coastal states as far north as Pennsylvania, New York, New Hampshire and Maine.
Cirsium horridulum is distinguished from the other species in the state by having spiny bracts surrounding the base of the inflorescence. The dense head of disk flowers is usually purple, but may be pink, yellow or white. Purple thistle flowers are a favorite of many pollinators. The single hollow stem of this biennial herb grows to 1.5m (5 ft.) tall. The pinnately lobed leaves have spines along the margins and appear first as a large basal rosette before the tall leafy stem emerges.

View online purchase options for Palamedes Swallowtail and Friends by Paul Rebmann View online purchase options for Sulphur Butterfly on Thistle by Paul Rebmann View online purchase options for Thistle Pollinators - Large and Small by Paul Rebmann

Cirsium horridulum is a member of the Asteraceae - Aster family.

Other species of the Cirsium genus in the Wild Florida Photo database:
  View  Cirsium muticum - SWAMP THISTLE
  View  Cirsium nuttallii - NUTTALL'S THISTLE

Central Florida Wildflowers

  Roger L. Hammer
 A Field Guide to Wildflowers of the Lake Wales Ridge, Ocala National Forest, Disney Wilderness Preserve, and More than 60 State Parks and Preserves

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Central Florida Wildflowers
This guide features stunning color photographs of 300 common wildflowers from Ocala National Forest, Merritt Island National Wildlife Refuge, Loxahatchee National Wildlife Refuge, the Disney Wilderness Preserve, Archbold Biological Station, and Paynes Prairie State Park among others. Detailed descriptions and full-color photos aid the reader in identifying plants in the field.

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