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Category: Cirsium

Cirsium cymosum var. canovirens

February 19, 2021 Dan Nelson 10 Comments

When many of us think of thistles we do so with less than charitable thoughts, because most of the thistles…

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Posted in: Angiosperms (Flowering Plants), Asteraceae (Sunflowers), Asterales, Cirsium, Eudicots, Plants, Species Profiles Filed under: Cirsium cymosum var. canovirens, Grey Green Thistle

Cirsium vulgare (Bull Thistle)

August 19, 2020 Dan Nelson Leave a comment

These plants are 1.5-5’ tall, with prickly stems, and sessile, clasping, narrow lobed leaves ending in a spine. Flower heads…

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Posted in: Angiosperms (Flowering Plants), Asteraceae (Sunflowers), Asterales, Cirsium, Eudicots, Plants, Species Profiles Filed under: Bull Thistle, Cirsium vulgare

Cirsium arvense (Canada Thistle, Creeping Thistle)

Dan Nelson Leave a comment

The most common common name for this plant is Canada Thistle, a misnomer because it is actually native to Eurasia…

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Posted in: Angiosperms (Flowering Plants), Asteraceae (Sunflowers), Asterales, Cirsium, Eudicots, Plants, Species Profiles Filed under: Canada Thistle, Cirsium arvense, Creeping Thistle

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