Plants of Colorado
The plants most often spotted in Colorado, ranked by recent research-grade observations.
Most-observed plants in Colorado
great mullein
Verbascum thapsus
9,308 observations
blue columbine
Aquilegia coerulea
8,486 observations
showy milkweed
Asclepias speciosa
8,322 observations
creeping mahonia
Berberis repens
6,981 observations · iNaturalist
Rocky Mountains Ponderosa Pine
Pinus scopulorum
6,786 observations · iNaturalist
fireweed
Chamaenerion angustifolium
6,755 observations · iNaturalist
Rubber Rabbitbrush
Ericameria nauseosa
6,682 observations · iNaturalist
quaking aspen
Populus tremuloides
6,664 observations
Lanceleaf Stonecrop
Sedum lanceolatum
6,176 observations · iNaturalist
sulfur buckwheat
Eriogonum umbellatum
5,909 observations
Great Plains yucca
Yucca glauca
5,839 observations
Plains Pricklypear
Opuntia polyacantha
5,739 observations
prairie pasqueflower
Pulsatilla nuttalliana
5,676 observations · iNaturalist
common yarrow
Achillea millefolium
5,618 observations
field bindweed
Convolvulus arvensis
5,521 observations
Scarlet Globemallow
Sphaeralcea coccinea
5,426 observations
Gunnison's Mariposa Lily
Calochortus gunnisonii
5,335 observations · iNaturalist
common starlily
Leucocrinum montanum
5,208 observations · iNaturalist
Whipple's penstemon
Penstemon whippleanus
5,008 observations · iNaturalist
chokecherry
Prunus virginiana
4,825 observations
Scarlet Gilia
Ipomopsis aggregata
4,788 observations
Mountain Ball Cactus
Pediocactus simpsonii
4,538 observations · iNaturalist
western harebell
Campanula petiolata
4,486 observations · iNaturalist
Redstem Stork's-bill
Erodium cicutarium
4,406 observations · iNaturalist
Front Range Beardtongue
Penstemon virens
4,366 observations · iNaturalist
musk thistle
Carduus nutans
4,268 observations · iNaturalist
Alderleaf Mountain Mahogany
Cercocarpus montanus
4,123 observations · iNaturalist
monument plant
Frasera speciosa
4,112 observations · iNaturalist
bearberry
Arctostaphylos uva-ursi
3,654 observations
Western Spiderwort
Tradescantia occidentalis
3,604 observations
shrubby cinquefoil
Dasiphora fruticosa
3,600 observations
Western Wallflower
Erysimum capitatum
3,550 observations · iNaturalist
Lambert's Locoweed
Oxytropis lambertii
3,531 observations
Elephant's-Head lousewort
Pedicularis groenlandica
3,496 observations
common juniper
Juniperus communis
3,493 observations
wax currant
Ribes cereum
3,480 observations · iNaturalist
Balkan toadflax
Linaria dalmatica
3,469 observations · iNaturalist
fringed sagebrush
Artemisia frigida
3,394 observations · iNaturalist
Yellow Sweetclover
Melilotus officinalis
3,393 observations
Rocky Mountain Beeplant
Cleomella serrulata
3,354 observations · iNaturalist
dotted gayfeather
Liatris punctata
3,347 observations · iNaturalist
common cowparsnip
Heracleum maximum
3,315 observations
creeping thistle
Cirsium arvense
3,237 observations · iNaturalist
thistle poppy
Argemone polyanthemos
3,220 observations · iNaturalist
Douglas-fir
Pseudotsuga menziesii
3,210 observations
twinberry honeysuckle
Lonicera involucrata
3,164 observations
Smooth Brome
Bromus inermis
3,099 observations
golden currant
Ribes aureum
3,086 observations
Green-flower Hedgehog Cactus
Echinocereus viridiflorus
3,086 observations
Rocky mountain marsh-marigold
Caltha chionophila
2,991 observations · iNaturalist