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Cirsium horridulum

Common Name(s):
Bristle thistle, Bull thistle, Horrid thistle, Purple thistle, Spiny thistle, Yellow thistle
Categories:
Herbs, Native Plants, Wildflowers
Comment:

Cirsium horridulum, also known as Yellow Thistle is a herbaceous perennial that may grow 2 to 5 foot,  

Regions:  Piedmont, Coastal Plains

Seasons of Interest: 

  Blooms:  Spring            Nut/Fruit/Seed: Fall  

Wildlife Value:  This plant is moderately resistant to damage from deer.  It is the host plant for the Little Metalmark and Painted Lady Butterflies.  Flowers are attractive to hummingbirds and butterflies.  Songbirds eat the seeds.   Members of the genus Cirsium support the following specialized bees: Melissodes (Heliomelissodes) desponsusOsmia (Helicosmia) chalybea and Osmia (Helicosmia) texana.

 

Season:
Late spring into early summer
Light:
Sun
Height:
2-5 ft.
Foliage:
Yellow thistle has very spiny, deeply incised, extremely bristly, clasping leaves. It grows 1-5 1/2 feet tall, and the leaves are 8-24 inches long. The leaves are woolly when young.
Flower:
Yellow thistle has a tall branching stem with large yellow or red-purple flower heads. The flower head is 3-in. Its spiny bracts may be purple or white. In rare instances the blossom is yellow.
Habit:
Deciduous
Site:
Yellow Thistle is often found along the edges of salt marshes, fields, shores, savannahs, roadsides and waste places. It is also a pasture weed in the South. It grows best in sandy soil.
Exposure:
Full sun
Life Cycle:
Perennial
Tags:
annual, host plant, bees, nectar, pollinator, specialized bees, hummingbirds, wildlife, songbirds, butterflies

NCCES plant id: 2525

Cirsium horridulum Cirsium horridulum
Kerry Woods, CC BY-NC-ND - 2.0
Cirsium horridulum Cirsium horridulum bloom stalk
Eleanor, CC BY-NC-2.0
cirsium horridulum Cirsium horridulum bloom detail
Bob Peterson, CC BY - 2.0