Nature School Game Contact Blog Project Noah Facebook Project Noah Twitter

A global citizen science platform
to discover, share and identify wildlife

Join Project Noah!
nature school apple icon

Nature School For Teachers - Fall 2020 Launch! visit nature school

Bull Thistle / Spear Thistle

Cirsium vulgare


Biennial Flower: Summer/Fall; disc, Purplish; rays, absent; bisexual; inferior ovary; bracts narrowly pointed, rigid, not sticky, Leaves: Simple, alternate; leaf bases that extend down stem forming prickly wings Fruit: Summer/Fall; Achene


Non-native and invasive; found throughout the United States and Canada May be found in meadows, pastures, and disturbed areas such as roadsides

Species ID Suggestions

Sign in to suggest organism ID

No Comments

Spotted by

Georgia, USA

Spotted on Jun 25, 2015
Submitted on Jun 26, 2015

Related Spottings

Cirsium vulgare(Spear Thistle) Spear Thistle Bull Thistle Spear Thistle

Nearby Spottings

Angularfruit Milkvine / Eastern Anglepod Angularfruit Milkvine American Lotus Downy Milkpea
Noah Guardians
Noah Sponsors