Offline access enabled

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 ↓

musk thistle ¹
Carduus nutans

Lesser Burdock ²
Arctium minus

Cotton Thistle ³
Onopordum acanthium

Russian knapweed ⁴
Leuzea repens

diffuse knapweed ⁵
Centaurea diffusa

spotted knapweed ⁶
Centaurea stoebe

Chicory ⁷
Cichorium intybus

common dandelion ⁸
Taraxacum officinale

prickly lettuce ⁹
Lactuca serriola

blue lettuce ¹⁰
Lactuca tatarica

rush skeletonplant ¹¹
Lygodesmia juncea

orange agoseris ¹²
Agoseris aurantiaca

Pale agoseris ⁶
Agoseris glauca

Prairie False Dandelion ¹³
Nothocalais cuspidata

viper grass ¹⁴
Scorzonera laciniata

yellow salsify ¹⁵
Tragopogon dubius

Spotted Joe-Pye Weed ¹⁶
Eutrochium maculatum

dotted gayfeather ¹⁷
Liatris punctata

heartleaf arnica ¹⁸
Arnica cordifolia

hillside arnica ¹⁹
Arnica fulgens

small-leaf pussytoes ²⁰
Antennaria parvifolia

pink everlasting ²¹
Antennaria rosea

fringed sagebrush ²²
Artemisia frigida

silver wormwood ²³
Artemisia ludoviciana

common yarrow ²⁴
Achillea millefolium

broom snakeweed ⁶
Gutierrezia sarothrae

rubber rabbitbrush ⁶
Ericameria nauseosa

Dwarf Goldenrod ²⁵
Solidago nana

Showy Goldenrod ¹³
Solidago speciosa

Missouri goldenrod ²⁶
Solidago missouriensis

giant goldenrod ²⁷
Solidago gigantea

velvety goldenrod ²⁸
Solidago velutina

Smooth Blue Aster ²⁹
Symphyotrichum laeve

Smooth White Aster ³⁰
Symphyotrichum porteri

Fendler's aster ³¹
Symphyotrichum fendleri

late purple aster ³²
Symphyotrichum patens

White Heath Aster ³³
Symphyotrichum ericoides

largeflower Townsend daisy ³⁴
Townsendia grandiflora

Harsh False Goldenaster ³⁵
Heterotheca hirsutissima

hairy goldenaster ⁶
Heterotheca villosa

Horseweed ³⁶
Erigeron canadensis

spreading fleabane ¹⁰
Erigeron divergens

trailing fleabane ³⁷
Erigeron flagellaris

Shaggy Fleabane ³⁸
Erigeron pumilus

aspen fleabane ³⁹
Erigeron speciosus

Three-nerve Fleabane ⁴⁰
Erigeron subtrinervis

Daisy Fleabane ⁴¹
Erigeron strigosus

Curly-cup Gumweed ⁴¹
Grindelia squarrosa

subalpine gumweed ⁴²
Grindelia subalpina

Bigelow's Tansyaster ⁴³
Dieteria bigelovii

Hoary Aster ¹²
Dieteria canescens

Spiny Ironplant ⁴⁴
Machaeranthera pinnatifida

Tall western groundsel ⁴⁵
Senecio integerrimus

broom-like ragwort ¹²
Senecio spartioides

Fendler's ragwort ⁴⁶
Packera fendleri

Three-tooth Groundsel ¹¹
Packera tridenticulata

Marshelder ⁴⁷
Cyclachaena xanthiifolia

western ragweed ⁴⁸
Ambrosia psilostachya

giant ragweed ⁴⁹
Ambrosia trifida

rough cocklebur ⁵⁰
Xanthium strumarium

upright prairie coneflower ⁵¹
Ratibida columnifera

Sunflower ⁵²
Helianthus annuus

Prairie Sunflower ²⁸
Helianthus petiolaris

Little Sunflower ⁵³
Helianthus pumilus

Jerusalem artichoke ⁵⁴
Helianthus tuberosus

showy goldeneye ¹⁰
Heliomeris multiflora

fetid marigold ⁵⁵
Dyssodia papposa

great blanketflower ⁵⁶
Gaillardia aristata

Indian blanket ⁵⁷
Gaillardia pulchella

Hybrid Blanketflower ⁵⁸
Gaillardia × grandiflora

Oppositeleaf False Bahia ⁶
Picradeniopsis oppositifolia

Creeping Bellflower ⁶
Campanula rapunculoides

Harebell ⁵⁹
Campanula rotundifolia

redstem filaree ⁶⁰
Erodium cicutarium

sticky geranium ⁶¹
Geranium viscosissimum

Northern Cranesbill ⁶²
Geranium bicknellii

pinewoods geranium ⁶³
Geranium caespitosum

western poison ivy ⁴¹
Toxicodendron rydbergii

fragrant sumac ⁶⁴
Rhus aromatica

smooth sumac ⁶⁵
Rhus glabra

Skunkbush Sumac ⁶⁶
Rhus trilobata

Rocky Mountain maple ⁶⁷
Acer glabrum

boxelder maple ⁶⁸
Acer negundo

scarlet beeblossom ⁴
Oenothera suffrutescens

White-stem Evening Primrose ⁶⁹
Oenothera albicaulis

White-stemmed Evening-primrose ⁷⁰
Oenothera nuttallii

fireweed ⁷¹
Chamaenerion angustifolium

Gambel oak ⁷²
Quercus gambelii

grey alder ⁷³
Alnus incana

Lanceleaf Figwort ⁷⁴
Scrophularia lanceolata

common mullein ⁷⁵
Verbascum thapsus

wholeleaf Indian paintbrush ⁷⁶
Castilleja integra

giant red Indian paintbrush ⁷⁷
Castilleja miniata

Canadian wood betony ⁴¹
Pedicularis canadensis

Yellow Owl's-clover ⁷⁸
Orthocarpus luteus

wild bergamot ⁷⁹
Monarda fistulosa

Catnip ⁸⁰
Nepeta cataria

common selfheal ⁸¹
Prunella vulgaris

Mintweed ⁸²
Salvia reflexa

Britton's Skullcap ⁸³
Scutellaria brittonii

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

Photo Credits

1. (c) Jon Sullivan, some rights reserved (CC BY)
2. (c) Willie Angus, some rights reserved (CC BY-NC)
3. (c) Alwyn Ladell, some rights reserved (CC BY-NC-ND)
4. (c) Stan Shebs, some rights reserved (CC BY-SA)
5. (c) Franz Xaver, some rights reserved (CC BY-SA)
6. (c) Matt Lavin, some rights reserved (CC BY-SA)
7. (c) David Hofmann, some rights reserved (CC BY-NC-ND)
8. (c) Dorota (Dorothy), some rights reserved (CC BY-SA)
9. (c) George F Mayfield, some rights reserved (CC BY-SA)
10. (c) Anthony Mendoza, some rights reserved (CC BY-NC-SA)
11. (c) Ken Bosma, some rights reserved (CC BY-NC), uploaded by Ken Bosma
12. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
13. (c) Joshua Mayer, some rights reserved (CC BY-SA)
14. (c) Nathan Taylor, some rights reserved (CC BY-NC), uploaded by Nathan Taylor
15. (c) José María Escolano, some rights reserved (CC BY-NC-SA)
16. (c) Rob Curtis, some rights reserved (CC BY-NC-SA), uploaded by Rob Curtis
17. (c) Kenneth Bader, some rights reserved (CC BY-NC), uploaded by Kenneth Bader
18. (c) 2009 Barry Breckling, some rights reserved (CC BY-NC-SA)
19. (c) 2001 John Game, some rights reserved (CC BY-NC)
20. (c) Ali, some rights reserved (CC BY-NC), uploaded by Ali
21. (c) 2010 Keir Morse, some rights reserved (CC BY-NC-SA)
22. (c) Carolannie--slow return, some rights reserved (CC BY-NC-ND)
23. (c) Bob O'Kennon, some rights reserved (CC BY-NC), uploaded by Bob O'Kennon
24. (c) Steve Guttman, some rights reserved (CC BY-NC-ND)
25. (c) Susan, some rights reserved (CC BY-NC), uploaded by Susan
26. (c) Moosicorn Ranch, some rights reserved (CC BY-NC-ND)
27. (c) Hermann Falkner, some rights reserved (CC BY-NC)
28. (c) Patrick Alexander, some rights reserved (CC BY-NC-ND)
29. (c) Peter Gorman, some rights reserved (CC BY-NC-SA)
30. (c) David Andreas De Rivera Tønnessen, some rights reserved (CC BY-NC), uploaded by David Andreas De Rivera Tønnessen
31. (c) Mark Fishbein, some rights reserved (CC BY-NC), uploaded by Mark Fishbein
32. (c) Fritz Flohr Reynolds, some rights reserved (CC BY-NC)
33. (c) Lauren Baur, some rights reserved (CC BY-NC-ND), uploaded by Lauren Baur
34. (c) Rosemary J. Smith, some rights reserved (CC BY-NC), uploaded by Rosemary J. Smith
35. (c) Bobby McCabe, some rights reserved (CC BY), uploaded by Bobby McCabe
36. (c) Matthew Herron, some rights reserved (CC BY-NC), uploaded by Matthew Herron
37. (c) Jeff Thompson, some rights reserved (CC BY-NC), uploaded by Jeff Thompson
38. (c) 2000 California Academy of Sciences, some rights reserved (CC BY-NC-SA)
39. (c) Hans-Jürgen Becker, some rights reserved (CC BY-NC-SA)
40. (c) 2011 Robert Sivinski, some rights reserved (CC BY-NC)
41. (c) Dan Mullen, some rights reserved (CC BY-NC-ND)
42. (c) Danny Edelson, some rights reserved (CC BY-NC-SA), uploaded by Danny Edelson
43. (c) johnbregar, some rights reserved (CC BY-NC)
44. (c) ellen hildebrandt, some rights reserved (CC BY-NC), uploaded by ellen hildebrandt
45. (c) scottmo, some rights reserved (CC BY-NC), uploaded by scottmo
46. (c) Barry Breckling, some rights reserved (CC BY-NC-SA)
47. (c) avarlamov, some rights reserved (CC BY-NC)
48. (c) Flickr, some rights reserved (CC BY-NC)
49. (c) zen Sutherland, some rights reserved (CC BY-NC-SA)
50. (c) Dinesh Valke, some rights reserved (CC BY-NC-SA)
51. (c) Belinda Lo, some rights reserved (CC BY-NC-SA)
52. (c) Matthias Barth, some rights reserved (CC BY-NC)
53. (c) 2014 Richard Spellenberg, some rights reserved (CC BY-NC-SA)
54. (c) Tero Laakso, some rights reserved (CC BY-SA)
55. (c) Alfredo Eloisa, some rights reserved (CC BY-NC)
56. (c) jpoyston, some rights reserved (CC BY-NC)
57. (c) Mary Keim, some rights reserved (CC BY-NC-SA)
58. (c) enbodenumer, some rights reserved (CC BY-NC-SA)
60. (c) Franco Folini, some rights reserved (CC BY)
61. (c) beautifulcataya, some rights reserved (CC BY-NC-ND)
62. (c) Superior National Forest, some rights reserved (CC BY)
63. (c) lexieruby999, some rights reserved (CC BY-NC)
64. (c) Kingsbrae Garden, some rights reserved (CC BY-NC-SA)
65. (c) Ron Marusak, some rights reserved (CC BY-NC), uploaded by Ron Marusak
66. (c) privera5, some rights reserved (CC BY-NC)
67. (c) Carol Jacobs-Carre, some rights reserved (CC BY-NC-ND)
68. (c) Salomé Bielsa, some rights reserved (CC BY-NC-SA)
69. (c) Matt Webb, some rights reserved (CC BY-NC), uploaded by Matt Webb
70. (c) Sarah Vinge-Mazer, some rights reserved (CC BY-NC-SA), uploaded by Sarah Vinge-Mazer
71. (c) Phil Sellens, some rights reserved (CC BY)
72. (c) Cullen Hanks, some rights reserved (CC BY-NC), uploaded by Cullen Hanks
73. (c) Jean Besset, some rights reserved (CC BY-NC), uploaded by Jean Besset
74. (c) Alex Abair, some rights reserved (CC BY-NC), uploaded by Alex Abair
75. (c) Steve Chilton, some rights reserved (CC BY-NC-ND)
76. (c) Richard Reynolds, some rights reserved (CC BY-NC), uploaded by Richard Reynolds
77. (c) J Brew, some rights reserved (CC BY-SA)
78. (c) randomtruth, some rights reserved (CC BY-NC-SA)
79. (c) Dylan, some rights reserved (CC BY-NC), uploaded by Dylan
80. (c) F. D. Richards, some rights reserved (CC BY-SA)
81. (c) Don Loarie, some rights reserved (CC BY)
82. (c) Carlos G Velazco-Macias, some rights reserved (CC BY-NC), uploaded by Carlos G Velazco-Macias
83. (c) Heidi Eaton, some rights reserved (CC BY-NC), uploaded by Heidi Eaton

Plants of Roxborough State Park

musk thistle 1 Carduus nutans

Lesser Burdock 2 Arctium minus

Cotton Thistle 3 Onopordum acanthium

Russian knapweed 4 Leuzea repens

diffuse knapweed 5 Centaurea diffusa

spotted knapweed 6 Centaurea stoebe

Chicory 7 Cichorium intybus

common dandelion 8 Taraxacum officinale

prickly lettuce 9 Lactuca serriola

blue lettuce 10 Lactuca tatarica

rush skeletonplant 11 Lygodesmia juncea

orange agoseris 12 Agoseris aurantiaca

Pale agoseris 6 Agoseris glauca

Prairie False Dandelion 13 Nothocalais cuspidata

viper grass 14 Scorzonera laciniata

yellow salsify 15 Tragopogon dubius

Spotted Joe-Pye Weed 16 Eutrochium maculatum

dotted gayfeather 17 Liatris punctata

heartleaf arnica 18 Arnica cordifolia

hillside arnica 19 Arnica fulgens

small-leaf pussytoes 20 Antennaria parvifolia

pink everlasting 21 Antennaria rosea

fringed sagebrush 22 Artemisia frigida

silver wormwood 23 Artemisia ludoviciana

common yarrow 24 Achillea millefolium

broom snakeweed 6 Gutierrezia sarothrae

rubber rabbitbrush 6 Ericameria nauseosa

Dwarf Goldenrod 25 Solidago nana

Showy Goldenrod 13 Solidago speciosa

Missouri goldenrod 26 Solidago missouriensis

giant goldenrod 27 Solidago gigantea

velvety goldenrod 28 Solidago velutina

Smooth Blue Aster 29 Symphyotrichum laeve

Smooth White Aster 30 Symphyotrichum porteri

Fendler's aster 31 Symphyotrichum fendleri

late purple aster 32 Symphyotrichum patens

White Heath Aster 33 Symphyotrichum ericoides

largeflower Townsend daisy 34 Townsendia grandiflora

Harsh False Goldenaster 35 Heterotheca hirsutissima

hairy goldenaster 6 Heterotheca villosa

Horseweed 36 Erigeron canadensis

spreading fleabane 10 Erigeron divergens

trailing fleabane 37 Erigeron flagellaris

Shaggy Fleabane 38 Erigeron pumilus

aspen fleabane 39 Erigeron speciosus

Three-nerve Fleabane 40 Erigeron subtrinervis

Daisy Fleabane 41 Erigeron strigosus

Curly-cup Gumweed 41 Grindelia squarrosa

subalpine gumweed 42 Grindelia subalpina

Bigelow's Tansyaster 43 Dieteria bigelovii

Hoary Aster 12 Dieteria canescens

Spiny Ironplant 44 Machaeranthera pinnatifida

Tall western groundsel 45 Senecio integerrimus

broom-like ragwort 12 Senecio spartioides

Fendler's ragwort 46 Packera fendleri

Three-tooth Groundsel 11 Packera tridenticulata

Marshelder 47 Cyclachaena xanthiifolia

western ragweed 48 Ambrosia psilostachya

giant ragweed 49 Ambrosia trifida

rough cocklebur 50 Xanthium strumarium

upright prairie coneflower 51 Ratibida columnifera

Sunflower 52 Helianthus annuus

Prairie Sunflower 28 Helianthus petiolaris

Little Sunflower 53 Helianthus pumilus

Jerusalem artichoke 54 Helianthus tuberosus

showy goldeneye 10 Heliomeris multiflora

fetid marigold 55 Dyssodia papposa

great blanketflower 56 Gaillardia aristata

Indian blanket 57 Gaillardia pulchella

Hybrid Blanketflower 58 Gaillardia × grandiflora

Oppositeleaf False Bahia 6 Picradeniopsis oppositifolia

Creeping Bellflower 6 Campanula rapunculoides

Harebell 59 Campanula rotundifolia

redstem filaree 60 Erodium cicutarium

sticky geranium 61 Geranium viscosissimum

Northern Cranesbill 62 Geranium bicknellii

pinewoods geranium 63 Geranium caespitosum

western poison ivy 41 Toxicodendron rydbergii

fragrant sumac 64 Rhus aromatica