BCP/Cirsium arvense
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Cirsium arvense
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Profile for Cirsium arvense (Canada Thistle)
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Global data:
Temperate zone season(s): Early Summer, Mid Summer, Late Summer, Early Fall
Regional data:
Southeastern Pennsylvania: (invasive or naturalized) June, July, August, September
New Hampshire: September
Central Pennsylvania: August , October
Additional images:
This page is a profile for the plant species Cirsium arvense, used to collect records of where and when this plant was observed blooming, and for providing identification information for use in dichotomous keys. If you would like to help collect data for this or other plants, see Bloom clock project/How to Contribute for orientation.
Categories:
- BCP/Flora of Pennsylvania
- BCP/SEPA/IP
- BCP/Keyed to temperate
- BCP/SEPA/6
- BCP/Early summer
- BCP/SEPA/7
- BCP/Mid summer
- BCP/SEPA/8
- BCP/Late summer
- BCP/SEPA/9
- BCP/Early fall
- BCP/NHAMP/9
- BCP/Flora of New Hampshire
- BCP/CTPA/8
- BCP/CTPA/10
- BCP/Species
- Purple flowered plants
- BCP/Color defined
- BCP/Herbaceous
- BCP/Forb
- BCP/Family/Asteraceae
- BCP/Genus/Cirsium
- BCP/Armed plants
- BCP/Simple leaves
- BCP/Alternate leaves
- BCP/Unlobed leaves
- Bloom Clock Plants
- Bloom Clock Project Plants