common crupina
(Crupina vulgaris)
This species is Introduced in the United States
Native Range
Europe, Asia, and northern Africa
Appearance
Common crupina is an herbaceous winter annual typically growing 1–3 ft (30–90 cm) tall from long taproots. Plants produce rigid, upright stems that are often branched in their upper halves. Seedling leaves are fleshy and round while stem leaves are alternate and deeply lobed with toothed margins and short hairs. Flower heads are produced at stem and branch tips. They are narrow, up to ¾ in (2 cm) long, and produce five purplish-pink florets. The bracts are dark green at first but turn purplish during seed maturation. Seeds are dark brown, barrel-shaped, and have a ring of dark bristly pappus.
Impact
Common crupina creates dense infestations that displace desirable forage species and contaminate hay. When common crupina replaces fibrous-rooted grass species, there is an increased risk of soil erosion. In some native ecosystems in the Northwest, common crupina infestations have reduced biodiversity.
Reference
West, N.M., M.A. Tancos, and J.E. Andreas. 2024. Common Crupina (Crupina vulgaris): History and Ecology in North America. In: R.L. Winston, Ed. Biological Control of Weeds in North America. North American Invasive Species Management Association, Milwaukee, WI. NAISMA-BCW-2024-41-COMMON CRUPINA-P. https://bugwoodcloud.org/resource/files/33591.pdf
Resources
- Federal Noxious Weed Disseminules of the U.S. - USDA-APHIS
- Wikipedia - Wikimedia Foundation, Inc
- Idaho's Noxious Weeds - The Idaho Association of Soil Conservation Districts
Selected Images
Maps
EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org
State Lists - This map identifies those states that have this species on their invasive species list or law.
Invasive Listing Sources
- Alberta Weed Control Act
- California Invasive Plant Council
- California Noxious Weeds
- Colorado Noxious Weeds
- Federal Noxious Weeds
- Florida Noxious Weeds
- Idaho Noxious Weeds
- John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995.
- Massachusetts Noxious Weeds
- Massachusetts Prohibited Plant List
- National Park Service, Mid-Atlantic Exotic Plant Management Team Invasive Plant List
- Nevada EDRR
- Nevada Noxious Weeds
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- Ontario’s Invading Species Awareness Program Tracked Species List
- Oregon Noxious Weeds
- Pacific Northwest Exotic Pest Plant Council, 1998
- South Carolina Plant Pest List
- USDA APHIS Regulated Pest List
- Utah Noxious Weeds - Early Detection Rapid Response Watch List
- Washington Noxious Weeds
- WeedUS - Database of Plants Invading Natural Areas in the United States
Taxonomic Rank
| Domain: Eukarya |
| Kingdom: Plantae |
| Phylum: Magnoliophyta |
| Class: Magnoliopsida |
| Superorder: Asteranae |
| Order: Asterales |
| Family: Asteraceae |
| Subfamily: Carduoideae |
| Tribe: Cardueae |
| Genus: Crupina |
| Crupina vulgaris |
References
Common Name Reference: USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.
Scientific Name Reference: USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.