Cirsium
| Kingdom: Plantae |
| Phylum: Magnoliophyta |
| Class: Magnoliopsida |
| Subclass: Asteridae |
| Order: Asterales |
| Family: Asteraceae |
| Genus: Cirsium |
| 9 Images of 7 Subjects | View Subject List | View Image Descriptions | View Thumbnails |
| 9 Images |
5370304 thistle Cirsium spp. Flower(s) Rebekah D. Wallace |
5422821 Canada thistle Cirsium arvense Flower(s) Caleb Slemmons |
5422822 bull thistle Cirsium vulgare Flower(s) Caleb Slemmons |
5374537 snowy thistle Cirsium occidentale var. candidissimum Plant(s) Joseph M. DiTomaso |
5374393 peregrine thistle Cirsium cymosum Plant(s) Joseph M. DiTomaso |
5374390 bull thistle Cirsium vulgare Plant(s) Joseph M. DiTomaso |
5374386 wavyleaf thistle Cirsium undulatum Plant(s) Joseph M. DiTomaso |
5374383 yellowspine thistle Cirsium ochrocentrum Plant(s) Joseph M. DiTomaso |
5374381 Canada thistle Cirsium arvense Flower(s) Joseph M. DiTomaso |
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