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Plants of Roxborough State Park

Roxborough State Park is located approximately twenty-five miles southwest of Denver in Douglas County. Over 105,000 people visit this day-use park each year. Local schools, scouting groups, and clubs make up a significant portion of park visitation. Families and groups of international ...more ↓

Creeping Thistle ¹
Cirsium arvense

wavyleaf thistle ²
Cirsium undulatum

bull thistle ³
Cirsium vulgare

plumeless thistle ⁴
Carduus acanthoides

musk thistle ⁵
Carduus nutans

Lesser Burdock ⁶
Arctium minus

Cotton Thistle ⁷
Onopordum acanthium

Russian knapweed ⁸
Leuzea repens

diffuse knapweed ⁹
Centaurea diffusa

spotted knapweed ²
Centaurea stoebe

Chicory ¹⁰
Cichorium intybus

common dandelion ¹¹
Taraxacum officinale

prickly lettuce ¹²
Lactuca serriola

blue lettuce ¹³
Lactuca tatarica

rush skeletonplant ¹⁴
Lygodesmia juncea

orange agoseris ¹⁵
Agoseris aurantiaca

Pale agoseris ²
Agoseris glauca

Prairie False Dandelion ¹⁶
Nothocalais cuspidata

viper grass ¹⁷
Scorzonera laciniata

yellow salsify ¹⁸
Tragopogon dubius

Spotted Joe-Pye Weed ¹⁹
Eutrochium maculatum

dotted gayfeather ²⁰
Liatris punctata

heartleaf arnica ²¹
Arnica cordifolia

hillside arnica ²²
Arnica fulgens

small-leaf pussytoes ²³
Antennaria parvifolia

pink everlasting ²⁴
Antennaria rosea

fringed sagebrush ²⁵
Artemisia frigida

silver wormwood ²⁶
Artemisia ludoviciana

common yarrow ²⁷
Achillea millefolium

broom snakeweed ²
Gutierrezia sarothrae

rubber rabbitbrush ²
Ericameria nauseosa

Dwarf Goldenrod ²⁸
Solidago nana

Showy Goldenrod ¹⁶
Solidago speciosa

Missouri goldenrod ²⁹
Solidago missouriensis

giant goldenrod ³⁰
Solidago gigantea

velvety goldenrod ³¹
Solidago velutina

Smooth Blue Aster ³²
Symphyotrichum laeve

Smooth White Aster ³³
Symphyotrichum porteri

Fendler's aster ³⁴
Symphyotrichum fendleri

late purple aster ³⁵
Symphyotrichum patens

White Heath Aster ³⁶
Symphyotrichum ericoides

largeflower Townsend daisy ³⁷
Townsendia grandiflora

Harsh False Goldenaster ³⁸
Heterotheca hirsutissima

hairy goldenaster ²
Heterotheca villosa

Horseweed ³⁹
Erigeron canadensis

spreading fleabane ¹³
Erigeron divergens

trailing fleabane ⁴⁰
Erigeron flagellaris

Shaggy Fleabane ⁴¹
Erigeron pumilus

aspen fleabane ⁴²
Erigeron speciosus

Three-nerve Fleabane ⁴³
Erigeron subtrinervis

Daisy Fleabane ⁴⁴
Erigeron strigosus

Curly-cup Gumweed ⁴⁴
Grindelia squarrosa

subalpine gumweed ⁴⁵
Grindelia subalpina

Bigelow's Tansyaster ⁴⁶
Dieteria bigelovii

Hoary Aster ¹⁵
Dieteria canescens

Spiny Ironplant ⁴⁷
Machaeranthera pinnatifida

Tall western groundsel ⁴⁸
Senecio integerrimus

broom-like ragwort ¹⁵
Senecio spartioides

Fendler's ragwort ⁴⁹
Packera fendleri

Three-tooth Groundsel ¹⁴
Packera tridenticulata

Marshelder ⁵⁰
Cyclachaena xanthiifolia

western ragweed ⁵¹
Ambrosia psilostachya

giant ragweed ⁵²
Ambrosia trifida

rough cocklebur ⁵³
Xanthium strumarium

upright prairie coneflower ⁵⁴
Ratibida columnifera

Sunflower ⁵⁵
Helianthus annuus

Prairie Sunflower ³¹
Helianthus petiolaris

Little Sunflower ⁵⁶
Helianthus pumilus

Jerusalem artichoke ⁵⁷
Helianthus tuberosus

showy goldeneye ¹³
Heliomeris multiflora

fetid marigold ⁵⁸
Dyssodia papposa

great blanketflower ⁵⁹
Gaillardia aristata

Indian blanket ⁶⁰
Gaillardia pulchella

Hybrid Blanketflower ⁶¹
Gaillardia × grandiflora

Oppositeleaf False Bahia ²
Picradeniopsis oppositifolia

Creeping Bellflower ²
Campanula rapunculoides

Harebell ⁶²
Campanula rotundifolia

Edited by Colorado Parks and Wildlife, some rights reserved (CC BY-SA)

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Plants of Roxborough State Park

Creeping Thistle 1 Cirsium arvense

wavyleaf thistle 2 Cirsium undulatum

bull thistle 3 Cirsium vulgare

plumeless thistle 4 Carduus acanthoides

musk thistle 5 Carduus nutans

Lesser Burdock 6 Arctium minus

Cotton Thistle 7 Onopordum acanthium

Russian knapweed 8 Leuzea repens

diffuse knapweed 9 Centaurea diffusa

spotted knapweed 2 Centaurea stoebe

Chicory 10 Cichorium intybus

common dandelion 11 Taraxacum officinale

prickly lettuce 12 Lactuca serriola

blue lettuce 13 Lactuca tatarica

rush skeletonplant 14 Lygodesmia juncea

orange agoseris 15 Agoseris aurantiaca

Pale agoseris 2 Agoseris glauca

Prairie False Dandelion 16 Nothocalais cuspidata

viper grass 17 Scorzonera laciniata

yellow salsify 18 Tragopogon dubius

Spotted Joe-Pye Weed 19 Eutrochium maculatum

dotted gayfeather 20 Liatris punctata

heartleaf arnica 21 Arnica cordifolia

hillside arnica 22 Arnica fulgens

small-leaf pussytoes 23 Antennaria parvifolia

pink everlasting 24 Antennaria rosea

fringed sagebrush 25 Artemisia frigida

silver wormwood 26 Artemisia ludoviciana

common yarrow 27 Achillea millefolium

broom snakeweed 2 Gutierrezia sarothrae

rubber rabbitbrush 2 Ericameria nauseosa

Dwarf Goldenrod 28 Solidago nana

Showy Goldenrod 16 Solidago speciosa

Missouri goldenrod 29 Solidago missouriensis

giant goldenrod 30 Solidago gigantea

velvety goldenrod 31 Solidago velutina

Smooth Blue Aster 32 Symphyotrichum laeve

Smooth White Aster 33 Symphyotrichum porteri

Fendler's aster 34 Symphyotrichum fendleri

late purple aster 35 Symphyotrichum patens

White Heath Aster 36 Symphyotrichum ericoides

largeflower Townsend daisy 37 Townsendia grandiflora

Harsh False Goldenaster 38 Heterotheca hirsutissima

hairy goldenaster 2 Heterotheca villosa

Horseweed 39 Erigeron canadensis

spreading fleabane 13 Erigeron divergens

trailing fleabane 40 Erigeron flagellaris

Shaggy Fleabane 41 Erigeron pumilus

aspen fleabane 42 Erigeron speciosus

Three-nerve Fleabane 43 Erigeron subtrinervis

Daisy Fleabane 44 Erigeron strigosus

Curly-cup Gumweed 44 Grindelia squarrosa

subalpine gumweed 45 Grindelia subalpina

Bigelow's Tansyaster 46 Dieteria bigelovii

Hoary Aster 15 Dieteria canescens

Spiny Ironplant 47 Machaeranthera pinnatifida

Tall western groundsel 48 Senecio integerrimus

broom-like ragwort 15 Senecio spartioides

Fendler's ragwort 49 Packera fendleri

Three-tooth Groundsel 14 Packera tridenticulata

Marshelder 50 Cyclachaena xanthiifolia

western ragweed 51 Ambrosia psilostachya

giant ragweed 52 Ambrosia trifida

rough cocklebur 53 Xanthium strumarium

upright prairie coneflower 54 Ratibida columnifera

Sunflower 55 Helianthus annuus

Prairie Sunflower 31 Helianthus petiolaris

Little Sunflower 56 Helianthus pumilus

Jerusalem artichoke 57 Helianthus tuberosus

showy goldeneye 13 Heliomeris multiflora

fetid marigold 58 Dyssodia papposa

great blanketflower 59 Gaillardia aristata

Indian blanket 60 Gaillardia pulchella

Hybrid Blanketflower 61 Gaillardia × grandiflora

Oppositeleaf False Bahia 2 Picradeniopsis oppositifolia

Creeping Bellflower 2 Campanula rapunculoides

Harebell 62 Campanula rotundifolia