Plants of St. Vrain State Park

St. Vrain State Park is centrally located in the northern Front Range in western Weld County about five miles east of the City of Longmont. It is a popular recreation destination, especially for people from Longmont and other parts of the northern Front Range and, to a lesser extent, from the ...more ↓

Smooth Horsetail ¹
Equisetum laevigatum

Alfalfa ¹
Medicago sativa

white sweet clover ²
Melilotus albus

yellow sweet clover ²
Melilotus officinalis

wild licorice ³
Glycyrrhiza lepidota

desert false indigo ⁴
Amorpha fruticosa

Rough Cinquefoil ⁵
Potentilla norvegica

Sulphur Cinquefoil ⁶
Potentilla recta

American Plum ⁷
Prunus americana

Russian Olive ⁸
Elaeagnus angustifolia

swamp milkweed ⁹
Asclepias incarnata

showy milkweed ¹⁰
Asclepias speciosa

hemp dogbane ¹¹
Apocynum cannabinum

Texas Bluebell ¹²
Eustoma grandiflorum

common purslane ¹³
Portulaca oleracea

Grassland Pricklypear ¹⁴
Opuntia cymochila

brittle prickly-pear ¹⁵
Opuntia fragilis

Plains Pricklypear ¹⁶
Opuntia polyacantha

plains prickly pear ¹⁷
Opuntia macrorhiza

pale smartweed ³
Persicaria lapathifolia

spotted lady's thumb ¹⁸
Persicaria maculosa

Douglas' knotweed ¹⁹
Polygonum douglasii

Oval Leaf Knotweed ²⁰
Polygonum arenastrum

Black-bindweed ²¹
Fallopia convolvulus

Tall Dock ²²
Rumex altissimus

curly dock ²³
Rumex crispus

White willow dock ¹⁹
Rumex triangulivalvis

common soapwort ⁵
Saponaria officinalis

Greater Sea-spurry ²⁴
Spergularia media

red tamarisk ²⁵
Tamarix ramosissima

pitseed goosefoot ¹
Chenopodium berlandieri

Leafy Goosefoot ²⁶
Chenopodium foliosum

Oak-leaved goosefoot ²⁷
Chenopodium glaucum

mealy goosefoot ²⁸
Chenopodium incanum

Red Goosefoot ²⁹
Chenopodium rubrum

Redroot Pigweed ³⁰
Amaranthus retroflexus

Fivehorn smotherweed ³¹
Bassia hyssopifolia

Kochia ³²
Bassia scoparia

Slender Russian-thistle ³³
Salsola collina

Prickly Russian Thistle ²⁸
Salsola tragus

Canada thistle ³⁴
Cirsium arvense

spear thistle ³⁵
Cirsium vulgare

musk thistle ³⁶
Carduus nutans

lesser burdock ³⁷
Arctium minus

Cotton Thistle ³⁸
Onopordum acanthium

Russian knapweed ³⁹
Leuzea repens

diffuse knapweed ⁴⁰
Centaurea diffusa

chicory ⁴
Cichorium intybus

common dandelion ⁴¹
Taraxacum officinale

Perennial Sow Thistle ⁴²
Sonchus arvensis

prickly lettuce ⁴³
Lactuca serriola

yellow salsify ⁴⁴
Tragopogon dubius

Cottonbatting plant ⁴⁵
Pseudognaphalium stramineum

Rubber Rabbitbrush ¹
Ericameria nauseosa

Canada goldenrod ²
Solidago canadensis

Smooth White Aster ⁴⁶
Symphyotrichum porteri

Eaton's aster ⁴⁷
Symphyotrichum bracteolatum

Horseweed ⁴⁸
Conyza canadensis

curlycup gumweed ⁸
Grindelia squarrosa

Tahoka daisy ⁴⁹
Machaeranthera tanacetifolia

devil's beggartick ⁵⁰
Bidens frondosa

Marsh Elder ⁴⁷
Cyclachaena xanthifolia

Western ragweed ⁵¹
Ambrosia psilostachya

Annual ragweed ⁵²
Ambrosia artemisiifolia elatior

rough cocklebur ⁵³
Xanthium strumarium

upright prairie coneflower ⁵⁴
Ratibida columnifera

common sunflower ⁵⁵
Helianthus annuus

cowpen daisy ⁵⁶
Verbesina encelioides

great blanketflower ⁵⁷
Gaillardia aristata

Indian blanket ⁵⁸
Gaillardia pulchella

redstem filaree ⁵⁹
Erodium cicutarium

Fragrant sumac ⁶⁰
Rhus aromatica

Skunkbush Sumac ⁶¹
Rhus trilobata

Great Willowherb ⁴⁴
Epilobium hirsutum

muchbranched groundsmoke ³
Gayophytum ramosissimum

Grand Ammannia ⁶²
Ammannia robusta

moth mullein ¹
Verbascum blattaria

great mullein ²
Verbascum thapsus

Field mint ⁶³
Mentha arvensis

American Bugleweed ⁸
Lycopus americanus

Rough Bugleweed ⁸
Lycopus asper

Catnip ⁶⁴
Nepeta cataria

prostrate vervain ²⁸
Verbena bracteata

blue vervain ⁸
Verbena hastata

Balkan toadflax ²⁸
Linaria dalmatica

common toadflax ⁸
Linaria vulgaris

Hairy purslane speedwell ⁶⁵
Veronica peregrina

chain speedwell ²⁹
Veronica catenata

Greater plantain ⁶⁶
Plantago major

thistle poppy ⁶⁷
Argemone polyanthemos

cursed crowfoot ³
Ranunculus sceleratus

jimsonweed ⁶⁸
Datura stramonium

long-leaved groundcherry ⁶⁹
Physalis longifolia

Hoe Nightshade ⁷⁰
Solanum physalifolium

buffalo bur ⁸
Solanum rostratum

cutleaf nightshade ²⁴
Solanum triflorum

field bindweed ⁷¹
Convolvulus arvensis

Fuller's teasel ⁷²
Dipsacus fullonum

Velvetleaf ⁷³
Abutilon theophrasti

dwarf mallow ⁷⁴
Malva neglecta

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

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Plants of St. Vrain State Park

Smooth Horsetail 1 Equisetum laevigatum

Alfalfa 1 Medicago sativa

white sweet clover 2 Melilotus albus

yellow sweet clover 2 Melilotus officinalis

wild licorice 3 Glycyrrhiza lepidota

desert false indigo 4 Amorpha fruticosa

Rough Cinquefoil 5 Potentilla norvegica

Sulphur Cinquefoil 6 Potentilla recta

American Plum 7 Prunus americana

Russian Olive 8 Elaeagnus angustifolia

swamp milkweed 9 Asclepias incarnata

showy milkweed 10 Asclepias speciosa

hemp dogbane 11 Apocynum cannabinum

Texas Bluebell 12 Eustoma grandiflorum

common purslane 13 Portulaca oleracea

Grassland Pricklypear 14 Opuntia cymochila

brittle prickly-pear 15 Opuntia fragilis

Plains Pricklypear 16 Opuntia polyacantha

plains prickly pear 17 Opuntia macrorhiza

pale smartweed 3 Persicaria lapathifolia

spotted lady's thumb 18 Persicaria maculosa

Douglas' knotweed 19 Polygonum douglasii

Oval Leaf Knotweed 20 Polygonum arenastrum

Black-bindweed 21 Fallopia convolvulus

Tall Dock 22 Rumex altissimus

curly dock 23 Rumex crispus

White willow dock 19 Rumex triangulivalvis

common soapwort 5 Saponaria officinalis

Greater Sea-spurry 24 Spergularia media

red tamarisk 25 Tamarix ramosissima

pitseed goosefoot 1 Chenopodium berlandieri

Leafy Goosefoot 26 Chenopodium foliosum

Oak-leaved goosefoot 27 Chenopodium glaucum

mealy goosefoot 28 Chenopodium incanum

Red Goosefoot 29 Chenopodium rubrum

Redroot Pigweed 30 Amaranthus retroflexus

Fivehorn smotherweed 31 Bassia hyssopifolia

Kochia 32 Bassia scoparia

Slender Russian-thistle 33 Salsola collina

Prickly Russian Thistle 28 Salsola tragus

Canada thistle 34 Cirsium arvense

spear thistle 35 Cirsium vulgare

musk thistle 36 Carduus nutans

lesser burdock 37 Arctium minus

Cotton Thistle 38 Onopordum acanthium

Russian knapweed 39 Leuzea repens

diffuse knapweed 40 Centaurea diffusa

chicory 4 Cichorium intybus

common dandelion 41 Taraxacum officinale

Perennial Sow Thistle 42 Sonchus arvensis

prickly lettuce 43 Lactuca serriola

yellow salsify 44 Tragopogon dubius

Cottonbatting plant 45 Pseudognaphalium stramineum

Rubber Rabbitbrush 1 Ericameria nauseosa

Canada goldenrod 2 Solidago canadensis

Smooth White Aster 46 Symphyotrichum porteri

Eaton's aster 47 Symphyotrichum bracteolatum

Horseweed 48 Conyza canadensis

curlycup gumweed 8 Grindelia squarrosa

Tahoka daisy 49 Machaeranthera tanacetifolia

devil's beggartick 50 Bidens frondosa

Marsh Elder 47 Cyclachaena xanthifolia

Western ragweed 51 Ambrosia psilostachya

Annual ragweed 52 Ambrosia artemisiifolia elatior

rough cocklebur 53 Xanthium strumarium

upright prairie coneflower 54 Ratibida columnifera

common sunflower 55 Helianthus annuus

cowpen daisy 56 Verbesina encelioides

great blanketflower 57 Gaillardia aristata

Indian blanket 58 Gaillardia pulchella

redstem filaree 59 Erodium cicutarium

Fragrant sumac 60 Rhus aromatica

Skunkbush Sumac 61 Rhus trilobata

Great Willowherb 44 Epilobium hirsutum

muchbranched groundsmoke 3 Gayophytum ramosissimum

Grand Ammannia 62 Ammannia robusta

moth mullein 1 Verbascum blattaria

great mullein 2 Verbascum thapsus

Field mint 63 Mentha arvensis