Canada thistle
Cirsium arvense (L.) Scop.
|
|
| Taxonomic Rank: Magnoliopsida > Asterales > Asteraceae > Cirsium |
| Common Name Synonym(s): Californian thistle, creeping thistle, field thistle |
| Taxonomic Synonym(s): Breea arvensis (L.) Scop. Breea incana (L.) Scop. Carduus arvensis (L.) Scop. Cirsium incanum (L.) Scop. Cirsium setosum (L.) Scop. Serratula arvensis (L.) Scop. |
| Category: Plants: Forbs/Herbs |
169 Records | View Images as Host | View Thumbnails |
| Image | Descriptor | Description |
|---|---|---|
| 0024019 | Flower(s) | |
| 0024020 | Research | research site |
| 0024021 | Infestation | |
| 1196009 | Infestation | |
| 1196010 | Plant(s) | |
| 1196013 | Flower(s) | |
| 1196121 | Plant(s) | |
| 1196143 | Infestation | |
| 1196252 | Plant(s) | |
| 1196257 | Infestation | |
| 1237095 | Plant(s) | |
| 1265114 | Plant(s) | |
| 1299209 | Infestation | |
| 1334019 | Flower(s) | South Dakota |
| 1334020 | Flower(s) | South Dakota |
| 1334022 | Flower(s) | In a forested setting. South Dakota |
| 1358349 | Flower(s) | |
| 1358350 | Plant(s) | |
| 1358351 | Flower(s) | |
| 1358352 | Foliage | |
| 1358353 | Feature(s) | Stem and foliage |
| 1358354 | Foliage | |
| 1358355 | Foliage | |
| 1358356 | Plant(s) | |
| 1358357 | Flower(s) | |
| 1358358 | Plant(s) | |
| 1358359 | Flower(s) | |
| 1358360 | Flower(s) | |
| 1358361 | Foliage | |
| 1459222 | Plant(s) | Along railroad right-of-way |
| 1459754 | Infestation | In a pasture |
| 1459755 | Foliage | |
| 1459756 | Flower(s) | |
| 1459757 | Infestation | |
| 1459758 | Flower(s) | |
| 1459759 | Infestation | With white flowers |
| 1459760 | Plant(s) | |
| 1459761 | Flower(s) | Purple and (rare) white flowers in the same field |
| 1459762 | Infestation | |
| 1459763 | Plant(s) | With white flowers |
| 1459764 | Flower(s) | |
| 1459915 | Flower(s) | |
| 1551182 | Infestation | |
| 1551183 | Foliage | |
| 1551184 | Seedling(s) | |
| 1551186 | Feature(s) | |
| 1551187 | Seed(s) | |
| 1553261 | Flower(s) | |
| 1553262 | Foliage | basal rosette |
| 1553263 | Infestation | fruiting |
| 1553264 | Fruit(s) | |
| 1553265 | Foliage | basal rosette |
| 1553266 | Seedling(s) | |
| 1553267 | Seedling(s) | |
| 1553268 | Infestation | in flower |
| 1553269 | Seedling(s) | |
| 1553270 | Seedling(s) | |
| 1560035 | Seedling(s) | |
| 1560036 | Flower(s) | |
| 1560037 | Flower(s) | |
| 1560038 | Flower(s) | |
| 1560039 | Flower(s) | |
| 1560040 | Flower(s) | |
| 1560041 | Fruit(s) | |
| 1560042 | Fruit(s) | |
| 1560043 | Fruit(s) | |
| 1560044 | Seedling(s) | with cotyledons |
| 1560045 | Foliage | |
| 1560046 | Seedling(s) | |
| 1560047 | Plant(s) | in flower |
| 1560048 | Plant(s) | in flower; view from above |
| 1560050 | Foliage | |
| 1560052 | Seedling(s) | |
| 1560053 | Seedling(s) | |
| 1560054 | Seedling(s) | |
| 1560055 | Seedling(s) | with cotyledons |
| 1560056 | Seedling(s) | |
| 1560057 | Foliage | basal rosette |
| 1560058 | Foliage | basal rosette |
| 1560059 | Seedling(s) | |
| 1560060 | Seedling(s) | cotyledons |
| 1560061 | Seedling(s) | |
| 1560062 | Seedling(s) | |
| 1560063 | Foliage | basal rosette |
| 1560064 | Stem(s) | |
| 1560065 | Seedling(s) | cotyledons |
| 1560066 | Seedling(s) | |
| 1560067 | Foliage | |
| 1560069 | Seedling(s) | |
| 1560070 | Seedling(s) | cortyledons |
| 1560071 | Seedling(s) | cotyledons |
| 1560072 | Seedling(s) | cotyledons |
| 1560073 | Flower(s) | |
| 1929056 | Infestation | in canola (Rape seed) field near Consort, Alberta |
| 1929057 | Plant(s) | |
| 5090084 | Plant(s) | |
| 5090085 | Flower(s) | |
| 5090086 | Foliage | |
| 5090088 | Foliage | |
| 5090089 | Flower(s) | |
| 5230083 | Flower(s) | Female flower heads |
| 5230084 | Fruit(s) | Female flower heads |
| 5230085 | Flower(s) | Male flower heads |
| 5230086 | Flower(s) | Male flower heads |
| 5230087 | Plant(s) | |
| 5270075 | Flower(s) | Flowers-white morph |
| 5270076 | Infestation | |
| 5270077 | Flower(s) | Close-up of flowers |
| 5270078 | Plant(s) | |
| 5270079 | Flower(s) | |
| 5270080 | Infestation | |
| 5270081 | Foliage | |
| 5307004 | Diagram or Graphic | Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 553. |
| 5307005 | Seed(s) | |
| 5307006 | Diagram or Graphic | USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. |
| 5310003 | Seed(s) | |
| 5330089 | Plant(s) | |
| 5356266 | Flower(s) | |
| 5356268 | Flower(s) | |
| 5358460 | Plant(s) | Rosettes of Canada thistle (Cirsium arvense). |
| 5358615 | Plant(s) | Canada thistle plants (Cirsium arvense) going to seed along a roadside. |
| 5358628 | Plant(s) | A Canada thistle (Cirsium arvense) plant going to seed. |
| 5358629 | Plant(s) | Canada thistle (Cirsium arvense) at the rosette stage. |
| 5358630 | Foliage | Close-up view of the spines and waxy cuticle of Canada thistle (Cirsium arvense) leaves. |
| 5358631 | Plant(s) | Mature Canada thistle plant, Cirsium arvense. |
| 5358632 | Flower(s) | Close-up view of buds and flower of Canada thistle (Cirsium arvense). |
| 5360185 | Seed(s) | Seed heads (capitula) of Canada thistle |
| 5360187 | Flower(s) | Canada thistle early bud
|
| 5362875 | Seedling(s) | Seedling (or young rosette) of Canada thistle, Cirsium arvense. |
| 5362876 | Infestation | Canada thistle plants (Cirsium arvense) infesting field corn. |
| 5364422 | Seed(s) | Seeds of Canada thistle (Cirsium arvense). |
| 5374379 | Infestation | male plants on left and female on right |
| 5374380 | Flower(s) | female flowers |
| 5374381 | Flower(s) | male flowers |
| 5374382 | Plant(s) | young sprout from rhizome |
| 5376367 | Fruit(s) | |
| 5376368 | Fruit(s) | apex of an achene |
| 5376369 | Fruit(s) | base of achene |
| 5376370 | Fruit(s) | cross section of achene |
| 5385901 | Flower(s) | |
| 5385902 | Field | |
| 5385903 | Plant(s) | |
| 5385904 | Plant(s) | with mature seed |
| 5385905 | Flower(s) | |
| 5385906 | Plant(s) | with mature seed |
| 5385907 | Flower(s) | |
| 5385908 | Flower(s) | |
| 5385909 | Seed(s) | |
| 5385910 | Seed(s) | |
| 5385911 | Foliage | |
| 5385912 | Foliage | |
| 5385913 | Foliage | |
| 5385914 | Flower(s) | |
| 5391602 | Plant(s) | Weird white foliage |
| 5392045 | Fruit(s) | Seedheads |
| 5392046 | Flower(s) | |
| 5392047 | Flower(s) | Flowerheads |
| 5392048 | Plant(s) | Plants |
| 5392049 | Flower(s) | Male inflorescence |
| 5392050 | Flower(s) | |
| 5392051 | Flower(s) | |
| 5392052 | Flower(s) | |
| 5392053 | Flower(s) | |
| 5392054 | Flower(s) | |
| 5398054 | Plant(s) | leaf |
| 5398055 | Plant(s) | leaf |
| 5398056 | Plant(s) | leaf |
| 5398554 | Plant(s) | leaf |
| 5398555 | Plant(s) | leaf |
