Plants of Barr Lake State Park

Covering more than 1,900 surface acres, Barr Lake is one of the largest prairie reservoirs in Colorado open to public recreation. Barr Lake provides habitat for more than 340 species of birds and its significance is recognized on both national and international levels. Nearly 700 acres of ...more ↓

rough horsetail ¹
Equisetum hyemale

Smooth Horsetail ²
Equisetum laevigatum

One-seed Juniper ³
Juniperus monosperma

Rocky Mountain juniper ⁴
Juniperus scopulorum

Alfalfa ²
Medicago sativa

white sweetclover ⁵
Melilotus albus

yellow sweet clover ⁵
Melilotus officinalis

Rusty lupine ²
Lupinus pusillus

Manystem Pea ⁶
Lathyrus polymorphus

Ground-plum ²
Astragalus crassicarpus

wild licorice ⁷
Glycyrrhiza lepidota

purple prairie clover ⁸
Dalea purpurea

black locust ⁹
Robinia pseudoacacia

Lance-leaved scurf-pea ¹⁰
Ladeania lanceolata

prairie rose ¹¹
Rosa arkansana

Woods' rose ¹²
Rosa woodsii

chokecherry ¹³
Prunus virginiana

American Plum ¹⁴
Prunus americana

stinging nettle ¹⁵
Urtica dioica

Siberian elm ²
Ulmus pumila

common hop ¹⁶
Humulus lupulus

Russian olive ¹⁷
Elaeagnus angustifolia

Silverberry ¹⁸
Elaeagnus commutata

Ten-petal Stickleaf ¹⁹
Mentzelia decapetala

Bractless Blazingstar ²⁰
Mentzelia nuda

white-stem stickleaf ²¹
Mentzelia albicaulis

swamp milkweed ²²
Asclepias incarnata

showy milkweed ²³
Asclepias speciosa

butterfly milkweed ²⁴
Asclepias tuberosa

Hemp dogbane ²⁵
Apocynum cannabinum

common purslane ²⁶
Portulaca oleracea

viviparous foxtail cactus ²⁷
Escobaria vivipara

brittle prickly-pear ²⁸
Opuntia fragilis

starvation prickly-pear ²⁹
Opuntia polyacantha

water smartweed ³⁰
Persicaria amphibia

pale smartweed ⁷
Persicaria lapathifolia

Pinkweed ³¹
Persicaria pensylvanica

common knotweed ³²
Polygonum arenastrum

prostrate knotweed ³³
Polygonum aviculare

curly dock ³⁴
Rumex crispus

snowball sand verbena ³⁵
Abronia fragrans

saltcedar ³⁶
Tamarix ramosissima

Fourwing Saltbush ³⁷
Atriplex canescens

Common Orache ³⁸
Atriplex patula

lamb's quarters ³⁹
Chenopodium album

Redroot Pigweed ⁴⁰
Amaranthus retroflexus

kochia ⁴¹
Bassia scoparia

Slender Russian-thistle ⁴²
Salsola collina

Prickly Russian thistle ⁴³
Salsola tragus

Creeping Thistle ⁴⁴
Cirsium arvense

yellowspine thistle ⁴⁵
Cirsium ochrocentrum

wavyleaf thistle ⁴⁶
Cirsium undulatum

bull thistle ⁴⁷
Cirsium vulgare

Musk Thistle ⁴⁸
Carduus nutans

lesser burdock ⁴⁹
Arctium minus

Cotton Thistle ⁵⁰
Onopordum acanthium

diffuse knapweed ⁵¹
Centaurea diffusa

common dandelion ⁵²
Taraxacum officinale

spiny sow thistle ⁵³
Sonchus asper

prickly lettuce ⁵⁴
Lactuca serriola

blue lettuce ²
Lactuca tatarica

rush skeletonplant ⁵⁵
Lygodesmia juncea

yellow salsify ⁵⁶
Tragopogon dubius

False boneset ³²
Brickellia eupatorioides

dotted gayfeather ²
Liatris punctata

sand sagebrush ⁵⁷
Artemisia filifolia

silver wormwood ⁵⁸
Artemisia ludoviciana

common yarrow ⁵⁹
Achillea millefolium

pineapple-weed ⁶⁰
Matricaria discoidea

broom snakeweed ²
Gutierrezia sarothrae

western goldenrod ⁶¹
Euthamia occidentalis

rubber rabbitbrush ²
Ericameria nauseosa

stiff goldenrod ²
Solidago rigida

Missouri goldenrod ⁶²
Solidago missouriensis

Rubber Rabbitbrush ⁶³
Chrysothamnus nauseosus

white prairie aster ⁶⁴
Symphyotrichum falcatum

Harsh False Goldenaster ⁶⁵
Heterotheca hirsutissima

hairy goldenaster ⁶⁶
Heterotheca villosa

Horseweed ⁶⁷
Erigeron canadensis

spreading fleabane ⁶⁸
Erigeron divergens

trailing fleabane ⁶⁹
Erigeron flagellaris

Daisy Fleabane ¹⁷
Erigeron strigosus

Curly-cup Gumweed ¹⁷
Grindelia squarrosa

Bigelow's tansyaster ⁷⁰
Dieteria bigelovii bigelovii

broom-like ragwort ⁴³
Senecio spartioides

Fendler's ragwort ⁶⁹
Packera fendleri

Bigelow's beggarticks ⁷¹
Bidens bigelovii

Nodding Bur-marigold ⁷²
Bidens cernua

devil's beggartick ⁷³
Bidens frondosa

Marshelder ⁷⁴
Cyclachaena xanthiifolia

Common Ragweed ⁷⁵
Ambrosia artemisiifolia

Western Ragweed ⁷⁶
Ambrosia psilostachya

giant ragweed ⁷⁷
Ambrosia trifida

poverty weed ²
Iva axillaris

rough cocklebur ⁷⁸
Xanthium strumarium

upright prairie coneflower ⁷⁹
Ratibida columnifera

common sunflower ⁸⁰
Helianthus annuus

prairie sunflower ⁷
Helianthus petiolaris

cowpen daisy ⁸¹
Verbesina encelioides

great blanketflower ⁸²
Gaillardia aristata

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

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Plants of Barr Lake State Park

rough horsetail 1 Equisetum hyemale

Smooth Horsetail 2 Equisetum laevigatum

One-seed Juniper 3 Juniperus monosperma

Rocky Mountain juniper 4 Juniperus scopulorum

Alfalfa 2 Medicago sativa

white sweetclover 5 Melilotus albus

yellow sweet clover 5 Melilotus officinalis

Rusty lupine 2 Lupinus pusillus

Manystem Pea 6 Lathyrus polymorphus

Ground-plum 2 Astragalus crassicarpus

wild licorice 7 Glycyrrhiza lepidota

purple prairie clover 8 Dalea purpurea

black locust 9 Robinia pseudoacacia

Lance-leaved scurf-pea 10 Ladeania lanceolata

prairie rose 11 Rosa arkansana

Woods' rose 12 Rosa woodsii

chokecherry 13 Prunus virginiana

American Plum 14 Prunus americana

stinging nettle 15 Urtica dioica

Siberian elm 2 Ulmus pumila

common hop 16 Humulus lupulus

Russian olive 17 Elaeagnus angustifolia

Silverberry 18 Elaeagnus commutata

Ten-petal Stickleaf 19 Mentzelia decapetala

Bractless Blazingstar 20 Mentzelia nuda

white-stem stickleaf 21 Mentzelia albicaulis

swamp milkweed 22 Asclepias incarnata

showy milkweed 23 Asclepias speciosa

butterfly milkweed 24 Asclepias tuberosa

Hemp dogbane 25 Apocynum cannabinum

common purslane 26 Portulaca oleracea

viviparous foxtail cactus 27 Escobaria vivipara

brittle prickly-pear 28 Opuntia fragilis

starvation prickly-pear 29 Opuntia polyacantha

water smartweed 30 Persicaria amphibia

pale smartweed 7 Persicaria lapathifolia

Pinkweed 31 Persicaria pensylvanica

common knotweed 32 Polygonum arenastrum

prostrate knotweed 33 Polygonum aviculare

curly dock 34 Rumex crispus

snowball sand verbena 35 Abronia fragrans

saltcedar 36 Tamarix ramosissima

Fourwing Saltbush 37 Atriplex canescens

Common Orache 38 Atriplex patula

lamb's quarters 39 Chenopodium album

Redroot Pigweed 40 Amaranthus retroflexus

kochia 41 Bassia scoparia

Slender Russian-thistle 42 Salsola collina

Prickly Russian thistle 43 Salsola tragus

Creeping Thistle 44 Cirsium arvense

yellowspine thistle 45 Cirsium ochrocentrum

wavyleaf thistle 46 Cirsium undulatum

bull thistle 47 Cirsium vulgare

Musk Thistle 48 Carduus nutans

lesser burdock 49 Arctium minus

Cotton Thistle 50 Onopordum acanthium

diffuse knapweed 51 Centaurea diffusa

common dandelion 52 Taraxacum officinale

spiny sow thistle 53 Sonchus asper

prickly lettuce 54 Lactuca serriola

blue lettuce 2 Lactuca tatarica

rush skeletonplant 55 Lygodesmia juncea

yellow salsify 56 Tragopogon dubius

False boneset 32 Brickellia eupatorioides

dotted gayfeather 2 Liatris punctata

sand sagebrush 57 Artemisia filifolia

silver wormwood 58 Artemisia ludoviciana

common yarrow 59 Achillea millefolium

pineapple-weed 60 Matricaria discoidea

broom snakeweed 2 Gutierrezia sarothrae

western goldenrod 61 Euthamia occidentalis

rubber rabbitbrush 2 Ericameria nauseosa

stiff goldenrod 2 Solidago rigida

Missouri goldenrod 62 Solidago missouriensis

Rubber Rabbitbrush 63 Chrysothamnus nauseosus

white prairie aster 64 Symphyotrichum falcatum

Harsh False Goldenaster 65 Heterotheca hirsutissima

hairy goldenaster 66 Heterotheca villosa

Horseweed 67 Erigeron canadensis