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Colorado State University is one of our nation's leading research universities with world-class research in infectious disease, atmospheric science, clean energy technologies, and environmental science. It was founded in 1870 as the Colorado Agricultural College, six years before the Colorado Territory became a state. Colorado State University, located in Fort Collins, Colorado, is situated on nearly 5,000 acres of land, including the main campus, a foothills campus, an agricultural campus, and a mountain campus (Pingree Park). Colorado State also has 4,600 acres for research centers, Cooperative Extension offices, and Colorado State Forest Service stations. |
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Phil Westra(X)
| 89 Images of 28 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5362842 | spurred anoda | Anoda cristata | Spurred anoda (Anoda cristata) plant in flower. |
| 1624071 | jointed goatgrass | Aegilops cylindrica | Native to Asia, has seeds that are similar in size and shape to wheat. This make contaminated shipments of wheat very difficult to clean. |
| 1624074 | jointed goatgrass | Aegilops cylindrica | A native to Asia, is a serious problem in wheat producing areas of the United States. It hybridizes with wheat and outcompetes the crop for nutrients and water. |
| 5362816 | Mexican fireweed | Kochia scoparia | Pollen grain of kochia (Kochia scoparia) under a scanning electron microscope. |
| 5362836 | velvetleaf | Abutilon theophrasti | Close-up view of the seed capsule of velvetleaf (Abutilon theophrasti). |
| 5362862 | nightshade | Solanum spp. | The flowers of a hairy nightshade. |
| 5362882 | common milkweed | Asclepias syriaca | Common milkweed (Asclepias syriaca) seedlings. |
| 5362881 | common milkweed | Asclepias syriaca | Common milkweed (Asclepias syriaca) seedlings. |
| 5362880 | common milkweed | Asclepias syriaca | Common milkweed (Asclepias syriaca) in bloom. |
| 5362879 | field bindweed | Convolvulus arvensis | Seed capsules of field bindweed (Convolvulus arvensis). |
| 5362878 | field bindweed | Convolvulus arvensis | Pink form of field bindweed (Convolvulus arvensis) flowers. |
| 5362877 | field bindweed | Convolvulus arvensis | Field bindweed plant(s), Convolvulus arvensis, emerging from underground rootstocks. |
| 5362875 | Canada thistle | Cirsium arvense | Seedling (or young rosette) of Canada thistle, Cirsium arvense. |
| 5362874 | shepherd's-purse | Capsella bursa-pastoris | Flowers and developing seedpods of shepherd's purse (Capsella bursa-pastoris). |
| 5362873 | common cocklebur | Xanthium strumarium | Close-up view of the flower of common cocklebur (Xanthium strumarium). |
| 5362872 | common cocklebur | Xanthium strumarium | Common cocklebur (Xanthium strumarium) seedling with 2 true leaves. |
| 5362869 | common purslane | Portulaca oleracea | Common purslane plant (Portulaca oleracea) in flower. |
| 5362867 | common purslane | Portulaca oleracea | Close-up of a seedling common purslane plant (Portulaca oleracea). |
| 5362866 | common purslane | Portulaca oleracea | Close-up of a seedling common purslane plant (Portulaca oleracea). |
| 5362865 | black nightshade | Solanum nigrum | Potted plants of American black nightshade (Solanum nigrum). |
| 5362864 | Colorado potato beetle | Leptinotarsa decemlineata | Eggs of the Colorado potato beetle (Leptinotarsa decemlineata) on the underside of a black nightshade leaf (Solanum nigrum). |
| 5362863 | hairy nightshade | Solanum physalifolium | Hairy nightshade plant (Solanum sarrachoides) -- young plant. |
| 5362861 | hairy nightshade | Solanum physalifolium | Immature fruits of hairy nightshade (Solanum sarrachoides), showing a star pattern. |
| 5362860 | black nightshade | Solanum nigrum | Fruits of eastern black nightshade (Solanum nigrum). |
| 5362859 | hairy nightshade | Solanum physalifolium | Fruits of hairy nightshade (Solanum sarrachoides), which do not darken to a blackish color. |
| 5362858 | hairy nightshade | Solanum physalifolium | Calyx details on the fruits of hairy nightshade (Solanum sarrachoides). |
| 5362857 | black nightshade | Solanum nigrum | Fruits of eastern black nightshade (Solanum nigrum) on the left, compared with those of hairy nightshade (S. sarrachoides) on the right. |
| 5362856 | hairy nightshade | Solanum physalifolium | Seedling hairy nightshade plant (Solanum sarrachoides) with first set of true leaves. |
| 5362855 | hairy nightshade | Solanum physalifolium | Seedling hairy nightshade plant (Solanum sarrachoides). |
| 5362854 | cutleaf nightshade | Solanum triflorum | Cutleaf nightshade plant (Solanum triflorum). |
| 5362852 | buffalobur | Solanum rostratum | Buffalobur plant (Solanum rostratum). |
| 5362851 | jimsonweed | Datura stramonium | Close-up view of a jimsonweed (Datura stramonium) pod. |
| 5362850 | jimsonweed | Datura stramonium | Close-up view of jimsonweed (Datura stramonium) flowers and buds. |
| 5362848 | jimsonweed | Datura stramonium | Close-up view of a jimsonweed (Datura stramonium) seedling, with cotyledons. |
| 5362847 | puncturevine | Tribulus terrestris | Close-up view of a flower and ripening seeds of puncturevine (Tribulus terrestris). |
| 5362846 | puncturevine | Tribulus terrestris | Seedling puncturevine (Tribulus terrestris) plant. |
| 5362845 | puncturevine | Tribulus terrestris | Seedling puncturevine (Tribulus terrestris) with cotyledons. |
| 5362844 | common mallow | Malva neglecta | Small plant of common mallow (Malva neglecta). |
| 5362843 | spurred anoda | Anoda cristata | Seed capsule of spurred anoda (Anoda cristata). |
| 5362841 | spurred anoda | Anoda cristata | Seedling spurred anoda (Anoda cristata) plants at the 2-leaf stage. |
| 5362840 | Venice mallow | Hibiscus trionum | Close-up view of the flower of Venice mallow (Hibiscus trionum). |
| 5362839 | Venice mallow | Hibiscus trionum | Small Venice mallow plant (Hibiscus trionum). |
| 5362837 | Venice mallow | Hibiscus trionum | Close-up view of the seedling of Venice mallow (Hibiscus trionum). |
| 5362835 | velvetleaf | Abutilon theophrasti | Infestation of velvetleaf (Abutilon theophrasti) in a waste area in Morgan County, Colorado. |
| 5362833 | velvetleaf | Abutilon theophrasti | Velvetleaf plant (Abutilon theophrasti) in bloom. |
| 5362831 | velvetleaf | Abutilon theophrasti | Seedling velvetleaf (Abutilon theophrasti). |
| 5362828 | toothed spurge | Euphorbia dentata | Close-up view of the flowers of toothed spurge (Euphorbia dentata). |
| 5362827 | toothed spurge | Euphorbia dentata | Toothed spurge (Euphorbia dentata) -- medium-size plants. |
| 5362826 | toothed spurge | Euphorbia dentata | Close-up view of a seedling of toothed spurge (Euphorbia dentata) at the 2-leaf stage. |
| 5362825 | toothed spurge | Euphorbia dentata | Close-up view of a seedling of toothed spurge (Euphorbia dentata). |
| 5362824 | common sunflower | Helianthus annuus | Common sunflower (Helianthus annuus) growing as a weed. |
| 5362823 | common sunflower | Helianthus annuus | Seedlings of common sunflower (Helianthus annuus). |
| 5362822 | common sunflower | Helianthus annuus | Seedlings of common sunflower (Helianthus annuus). |
| 5362821 | common sunflower | Helianthus annuus | Seedlings of common sunflower (Helianthus annuus) with cotyledons. |
| 5362820 | Russian-thistle | Salsola tragus | Close-up view of a Russian thistle (Salsola iberica, S. tragus) flower. |
| 5362818 | Russian-thistle | Salsola tragus | Close-up view of a Russian thistle (Salsola iberica, S. tragus) seedling. |
| 5362819 | Russian-thistle | Salsola tragus | Close-up view of a Russian thistle (Salsola iberica, S. tragus) seedling. |
| 5362817 | Mexican fireweed | Kochia scoparia | Close-up view of the red flowers of kochia (Kochia scoparia). |
| 5362815 | Mexican fireweed | Kochia scoparia | Very close-up view of the yellow flowers of kochia (Kochia scoparia). |
| 5362814 | Mexican fireweed | Kochia scoparia | Close-up view of the flowers of kochia (Kochia scoparia). |
| 5362813 | Mexican fireweed | Kochia scoparia | Close-up view of the green stem of kochia (Kochia scoparia). |
| 5361308 | Mexican fireweed | Kochia scoparia | Close-up view of the red stem of kochia (Kochia scoparia). |
| 5361307 | Mexican fireweed | Kochia scoparia | Close-up view of variation in leaf shape and size in kochia (Kochia scoparia). |
| 5361303 | Mexican fireweed | Kochia scoparia | Dense stand of kochia (Kochia scoparia) seedlings beneath mother plant. |
| 5361302 | Mexican fireweed | Kochia scoparia | Dense stand of kochia (Kochia scoparia) seedlings in spring. |
| 5361301 | Mexican fireweed | Kochia scoparia | Seedling kochia (Kochia scoparia) with multiple side shoots. |
| 5361300 | Mexican fireweed | Kochia scoparia | Seedling of kochia (Kochia scoparia) in early spring. |
| 5361299 | lambsquarters | Chenopodium album | Common lambsquarters (Chenopodium album) seedling at the 2-leaf stage. |
| 5361298 | redroot pigweed | Amaranthus retroflexus | Redroot pigweed (Amaranthus retroflexus) growing among weedy grasses. |
| 5361296 | redroot pigweed | Amaranthus retroflexus | Intermediate-size seedling of redroot pigweed (Amaranthus retroflexus). |
| 5361294 | redroot pigweed | Amaranthus retroflexus | Seedling of redroot pigweed (Amaranthus retroflexus) at the 2-leaf stage. |
| 5361293 | redroot pigweed | Amaranthus retroflexus | Seedling of redroot pigweed (Amaranthus retroflexus) at the cotyledon stage. |
| 5362876 | Canada thistle | Cirsium arvense | Canada thistle plants (Cirsium arvense) infesting field corn. |
| 5362834 | velvetleaf | Abutilon theophrasti | |
| 5362832 | velvetleaf | Abutilon theophrasti | Velvetleaf (Abutilon theophrasti) seedlings among young field corn plants. |
| 5361306 | Mexican fireweed | Kochia scoparia | Mature patch of triazine resistant kochia (Kochia scoparia) in field corn. |
| 5361305 | Mexican fireweed | Kochia scoparia | Dense patch of triazine resistant kochia (Kochia scoparia) in field corn. |
| 5361304 | Mexican fireweed | Kochia scoparia | Seedlings of kochia (Kochia scoparia) among field corn seedlings. |
| 5361297 | redroot pigweed | Amaranthus retroflexus | Close-up view of a dense infestation of redroot pigweed (Amaranthus retroflexus) in field corn. |
| 5361295 | redroot pigweed | Amaranthus retroflexus | Infestation of redroot pigweed (Amaranthus retroflexus) in field corn. |
| 5362871 | lanceleaf sage | Salvia reflexa | Lanceleaf sage (Salvia reflexa) growing as a weed in a carrot field. |
| 5362870 | lanceleaf sage | Salvia reflexa | Lanceleaf sage (Salvia reflexa) growing as a weed among dry beans. |
| 5362853 | buffalobur | Solanum rostratum | Buffalobur plants (Solanum rostratum) blooming in a crop of dry beans. |
| 5362849 | jimsonweed | Datura stramonium | Distant view of jimsonweed plants (Datura stramonium) growing in a dry bean field. |
| 5362829 | wild buckwheat | Fallopia convolvulus | Seedling of wild buckwheat (Polygonum convolvulus). |
| 5362830 | wild buckwheat | Fallopia convolvulus | Seedling of wild buckwheat (Polygonum convolvulus). |
| 5362868 | common purslane | Portulaca oleracea | Large common purslane (Portulaca oleracea) plant growing in an onion field. |
| 5362838 | Venice mallow | Hibiscus trionum | Seedlings of Venice mallow (Hibiscus trionum) in an onion field. |
| 5361455 | garden onion | Allium cepa | Demonstration of topping onions by hand, during harvest. |
