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Invasive
great mullein
Verbascum thapsus
9,111 observations
showy milkweed
Asclepias speciosa
7,595 observations
blue columbine
Aquilegia coerulea
7,093 observations
creeping mahonia
Berberis repens
6,704 observations
Rocky Mountains Ponderosa Pine
Pinus scopulorum
6,668 observations
fireweed
Chamaenerion angustifolium
6,617 observations
Rubber Rabbitbrush
Ericameria nauseosa
6,521 observations
quaking aspen
Populus tremuloides
6,347 observations
Lanceleaf Stonecrop
Sedum lanceolatum
5,995 observations
sulfur buckwheat
Eriogonum umbellatum
5,770 observations
Great Plains yucca
Yucca glauca
5,648 observations
prairie pasqueflower
Pulsatilla nuttalliana
5,503 observations
common yarrow
Achillea millefolium
5,481 observations
Gunnison's Mariposa Lily
Calochortus gunnisonii
5,225 observations
common starlily
Leucocrinum montanum
5,108 observations
Plains Pricklypear
Opuntia polyacantha
5,072 observations
Invasive
field bindweed
Convolvulus arvensis
4,946 observations
Whipple's penstemon
Penstemon whippleanus
4,934 observations
Scarlet Gilia
Ipomopsis aggregata
4,624 observations
chokecherry
Prunus virginiana
4,469 observations
western harebell
Campanula petiolata
4,435 observations
Scarlet Globemallow
Sphaeralcea coccinea
4,401 observations
Mountain Ball Cactus
Pediocactus simpsonii
4,271 observations
Invasive
Redstem Stork's-bill
Erodium cicutarium
4,221 observations
Invasive
musk thistle
Carduus nutans
4,110 observations
Alderleaf Mountain Mahogany
Cercocarpus montanus
4,068 observations
Front Range Beardtongue
Penstemon virens
4,043 observations
monument plant
Frasera speciosa
3,854 observations
bearberry
Arctostaphylos uva-ursi
3,562 observations
shrubby cinquefoil
Dasiphora fruticosa
3,539 observations
Lambert's Locoweed
Oxytropis lambertii
3,447 observations
Invasive
Balkan toadflax
Linaria dalmatica
3,375 observations
wax currant
Ribes cereum
3,360 observations
Elephant's-Head lousewort
Pedicularis groenlandica
3,337 observations
dotted gayfeather
Liatris punctata
3,323 observations
Western Spiderwort
Tradescantia occidentalis
3,302 observations
Rocky Mountain Beeplant
Cleomella serrulata
3,300 observations
common juniper
Juniperus communis
3,294 observations
Western Wallflower
Erysimum capitatum
3,275 observations
Invasive
Yellow Sweetclover
Melilotus officinalis
3,271 observations
fringed sagebrush
Artemisia frigida
3,237 observations
common cowparsnip
Heracleum maximum
3,191 observations
creeping thistle
Cirsium arvense
3,125 observations
Douglas-fir
Pseudotsuga menziesii
3,087 observations
twinberry honeysuckle
Lonicera involucrata
3,071 observations
Invasive
Smooth Brome
Bromus inermis
3,037 observations
thistle poppy
Argemone polyanthemos
3,012 observations
golden currant
Ribes aureum
2,968 observations
pinewoods geranium
Geranium caespitosum
2,842 observations
Rocky mountain marsh-marigold
Caltha chionophila
2,820 observations
Frequently Asked Questions
- The 10 most common plants in Colorado are:
- great mullein (Verbascum thapsus)
- showy milkweed (Asclepias speciosa)
- blue columbine (Aquilegia coerulea)
- creeping mahonia (Berberis repens)
- Rocky Mountains Ponderosa Pine (Pinus scopulorum)
- fireweed (Chamaenerion angustifolium)
- Rubber Rabbitbrush (Ericameria nauseosa)
- quaking aspen (Populus tremuloides)
- Lanceleaf Stonecrop (Sedum lanceolatum)
- sulfur buckwheat (Eriogonum umbellatum)
- The most observed plant in Colorado is great mullein (Verbascum thapsus), with 9,111 recorded observations.
- Some of the most commonly observed invasive plants in Colorado include:
- great mullein (Verbascum thapsus)
- field bindweed (Convolvulus arvensis)
- Redstem Stork's-bill (Erodium cicutarium)
- musk thistle (Carduus nutans)
- Balkan toadflax (Linaria dalmatica)