Eldorado Canyon State Park lies eight miles southwest of the city of Boulder along the eastern edge of the Front Range of the Rocky Mountains in an ecotone between the grasslands below and coniferous forests in and above the park. The park is made up of of 1,442 acres owned by the State of ...more ↓
Polygonum douglasii is a species of flowering plant in the knotweed family known by the common name Douglas's knotweed. It is native to much of northern and western North America, where it can be found in many types of habitat, including disturbed areas. It has been found in Canada from British Columbia north to Yukon and east as far as Québec, and in the United States as ...more ↓
Polygonum aviculare or common knotgrass is a plant related to buckwheat and dock. It is also called prostrate knotweed, birdweed, pigweed and lowgrass. It is an annual found in fields and wasteland, with white flowers from June to October. It is widespread across many countries in temperate regions, apparently native to Eurasia and North ...more ↓
Fallopia convolvulus, the black-bindweed or wild buckwheat, is a fast-growing annual flowering plant in the family Polygonaceae native throughout Europe, Asia and northern Africa. It is an arable plant.
Rumex acetosella, commonly known as sheep's sorrel, red sorrel, sour weed and field sorrel, is a species of flowering plant in the buckwheat family Polygonaceae. The plant and its subspecies are common perennial weeds. It has green arrowhead-shaped leaves and red-tinted deeply ridged stems, and it sprouts from an aggressive and spreading rhizome. The ...more ↓
Rumex crispus, the curly dock, curled dock or yellow dock, is a perennial flowering plant in the family Polygonaceae, native to Europe and Western Asia.
Eriogonum umbellatum is a species of wild buckwheat known by the common name sulphurflower buckwheat, or simply sulphur flower. It is native to western North America from California to Colorado to central Canada, where it is abundant and found in many habitats. This is an extremely variable plant and hard to identify because individuals can look very different from ...more ↓
Eriogonum alatum, with the common names winged buckwheat and winged eriogonum, is a species of buckwheat.
Cerastium arvense is a species of flowering plant in the pink family known by the common names field mouse-ear and field chickweed. It is a widespread species, occurring throughout Europe and North America, as well as parts of South America. It is a variable species. There are several subspecies, but the number and defining characteristics are disputed.
Cerastium fontanum, also called mouse-ear chickweed, common mouse-ear, or starweed, is a species of mat-forming perennial or, rarely, annual plant. It is native to Europe but introduced elsewhere. Its identifying characteristics are tear-shaped leaves growing opposite one another in a star pattern, hairy leaves, and small white flowers. Mouse-ear chickweed ...more ↓
Pseudostellaria jamesiana is a species of flowering plant in the pink family known by the common names tuber starwort and sticky starwort. It is native to much of the western United States, where it can be found in sagebrush, coniferous forests, and many other types of habitat. It is a perennial herb growing from a rhizome network with tuberlike swellings. The stem ...more ↓
Saponaria officinalis is a common perennial plant from the carnation family (Caryophyllaceae). This plant has many common names, including common soapwort, bouncing-bet, crow soap, wild sweet William, and soapweed. There are about 20 species of soapworts altogether.
Dianthus armeria (Deptford Pink or Grass Pink) is a species of Dianthus ("pink") native to most of Europe, from Portugal north to southern Scotland and southern Finland, and east to Ukraine and the Caucasus. It is also found in North America.
Silene antirrhina is a species of flowering plant in the pink family known by the common names sleepy silene and sleepy catchfly. It is native to the Americas, where it is widespread throughout North America and parts of South America. It is known in Europe as an introduced species.
Silene latifolia (formerly Melandrium album), the white campion is a dioecious flowering plant in the family Caryophyllaceae, native to most of Europe, Western Asia and Northern Africa. It is a herbaceous annual, occasionally biennial or a short-lived perennial plant, growing to between 40–80 centimetres tall. It is also known in the US as bladder campion ...more ↓
Silene vulgaris, the bladder campion or maidenstears, is a plant species of the genus Silene of the pink family (Caryophyllaceae). It is native to Europe, where in some parts it is eaten, but is widespread in North America where it is considered a weed.
Mirabilis nyctaginea is a species of flowering plant in the four o'clock family known by several common names, including wild four o'clock, heartleaf four o'clock, and heartleaf umbrella wort.
Chenopodium atrovirens is a species of flowering plant in the amaranth family known by the common names pinyon goosefoot and dark goosefoot.
Chenopodium fremontii is a species of flowering plant in the amaranth family known by the common name Frémont's goosefoot. Both the species' specific epithet, and the common name derive from the 19th century western pioneer John C. Frémont.
Chenopodium leptophyllum is a species of flowering plant in the amaranth family known by the common name narrowleaf goosefoot.
Claytonia rosea, the western springbeauty, is a small white-pink herb that can be found in a north facing mountain slopes among small rocks.
Cirsium arvense is a species of Cirsium, native throughout Europe and northern Asia, and widely introduced elsewhere. The standard English name in its native area is Creeping Thistle.
Cirsium undulatum is a species of thistle known by the common names wavyleaf thistle and gray thistle. It is native to much of central and western North America from British Columbia east to Manitoba and south as far as the State of Durango in Mexico. It has also been found outside of its native range as an introduced species.
Cirsium vulgare (Spear Thistle) is a species of the genus Cirsium, native throughout most of Europe (north to 66°N, locally 68°N), western Asia (east to the Yenisei Valley), and northwestern Africa (Atlas Mountains). It is also naturalised in North America and Australia and is as an invasive weed in some areas.
Carduus nutans, with the common names Musk thistle, Nodding thistle, and Nodding plumeless thistle, is a biennial herb in the Asteraceae—sunflower family. It is native to regions of Europe and Asia....
Arctium minus, commonly known as lesser burdock, burweed, louse-bur, common burdock,button-bur, cuckoo-button, or wild rhubarb, is a biennial plant. This plant is native to Europe, but is now widespread throughout most of the United States as a common weed.
Diffuse Knapweed (Centaurea diffusa), also known as White Knapweed or Tumble Knapweed, is a member of the genus Centaurea in the family Asteraceae.
Common chicory, Cichorium intybus, is a somewhat woody, perennial herbaceous plant usually with bright blue flowers, rarely white or pink. Various varieties are cultivated for salad leaves, chicons (blanched buds), or for roots (var. sativum), which are baked, ground, and used as a coffee substitute and additive. It is also grown as a forage crop for livestock. It ...more ↓
Taraxacum officinale, the common dandelion (often simply called "dandelion"), is a flowering herbaceous perennial plant of the family Asteraceae (Compositae). It can be found growing in temperate regions of the world, in lawns, on roadsides, on disturbed banks and shores of water ways, and other areas with moist soils. T. officinale is considered a weed, ...more ↓
Hieracium albiflorum is a common and widespread North American plant in the sunflower family, known by the names white hawkweed and white-flowered hawkweed.
Hieracium fendleri is a North American plant species in the dandelion tribe within the sunflower family. It is widespread across much of the western part of the continent, from the Black Hills of Wyoming and South Dakota south as far as Guatemala.
Lactuca biennis is a North American species of wild lettuce known by the common names tall blue lettuce and blue wood lettuce. It is widespread across much of the United States and Canada from Alaska and Yukon south as far as California, New Mexico, and Georgia.
Lactuca canadensis is a species of wild lettuce known by the common names Canada lettuce, Canada wild lettuce, tall lettuce, and Florida blue lettuce. Its true native range is not clear, but it is considered to be a native of the eastern and central parts of North America. It naturalized in the western part of the continent as well as in Eurasia.
Lactuca ludoviciana, the biannual lettuce, is a North American species of wild lettuce. It is widespread across much of central and western Canada and the western and central United States from Ontario west to British Columbia and south to Louisiana, Texas, and California. Most of the known populations are on the Great Plains; populations west of there may well represent ...more ↓
Lactuca serriola, also called prickly lettuce,milk thistle (not to be confused with Silybum marianum, also called milk thistle) compass plant, and scarole, is an annual or biennial plant, slightly foetid, that is commonly considered a weed of orchards, roadsides and field crops. The closest wild relative of cultivated lettuce (Lactuca ...more ↓
Agoseris parviflora is a North American species of flowering plants in the daisy family known by the common name Steppe agoseris or sagebrush agoseris or false dandelion. It is found in the Western United states primarily in the Great Basin and the region drained by the Colorado River but also in the eastern foothills of the Sierra Nevada and on the western ...more ↓
Stephanomeria runcinata is a species of flowering plant in the aster family known by the common name desert wirelettuce.
Tragopogon dubius (western salsify, western goat's-beard, wild oysterplant, yellow salsify, yellow goat's beard, goat's beard, goatsbeard, common salsify, salsify) is a species of Salsify native to southern and central Europe and western Asia and found as far north and west as northern France. Although it has been reported from Kashmir and India, recent evidence suggests ...more ↓
Tragopogon porrifolius is a plant cultivated for its ornamental flower, edible root, and herbal properties. It also grows wild in many places and is one of the most widely known species of the salsify genus, Tragopogon. It is commonly known as purple or common salsify, oyster plant, vegetable oyster, Jerusalem star, goatsbeard or ...more ↓
Brickellia grandiflora, known by the common name tasselflower brickellbush, is a species of flowering plant in the daisy family.
Brickellia eupatorioides (false boneset) is a North American species of flowering plants in the daisy family. It is widespread in Mexico from Chihuahua to Oaxaca, and in all regions of the contiguous United States except New England, New York, and the West Coast.
Brickellia californica, known by the common name California brickellbush, is a species of flowering plant in the daisy family.
Liatris punctata is a species of flowering plant in the aster family known by the common names dotted gayfeather, dotted blazingstar, and narrow-leaved blazingstar. It is native to North America, where it occurs throughout the plains of central Canada, the central United States, and northern Mexico.
Arnica cordifolia is a species of arnica known by the common name heartleaf arnica. It is native to western North America from Alaska to California to New Mexico, and it is distributed as far east as Ontario and Michigan. It is a plant of many habitat types, including coniferous forests and mountain meadows.
Antennaria neglecta is a North American species of flowering plants in the daisy family known by the common name field pussytoes. It is widespread across much of Canada (including Northwest Territories plus all provinces except Newfoundland/Labrador) as well as the northeastern and north-central United States.
Antennaria parvifolia is a species of flowering plant in the aster family known by the common names Nuttall's pussytoes and small-leaf pussytoes (not to be confused with littleleaf pussytoes). It is native to North America, where it occurs throughout much of Canada from British Columbia to Ontario, the western and central United States, and northern Mexico. It has ...more ↓
Antennaria rosea is a North American species of flowering plant in the daisy family known by the common name rosy pussytoes. It is widespread across much of Canada including all three Arctic territories, as well as Greenland, the western and north-central United States, and the Mexican State of Baja California.
Anapahlis margaritacea, commonly known as the western pearly everlasting, is a flowering perennial plant in the Asteraceae family. Since it is the only North American species it is often simply called pearly everlasting in the United States and Canada. However, it is also native to Asia and has been widely introduced in Europe. It grows erect up to heights of about ...more ↓
Tanacetum parthenium, feverfew, is a flowering plant in the daisy family Asteraceae. It is a traditional medicinal herb which is commonly used to prevent migraine headaches, and is also occasionally grown for ornament. It is also commonly seen in the literature by its synonyms, Chrysanthemum parthenium and Pyrethrum parthenium. It is also sometimes referred ...more ↓
Artemisia biennis is a species of sagebrush known by the common name biennial wormwood that is native to Europe.
Artemisia campestris is a common and widespread species of plants in the sunflower family. It is native to a wide region of Eurasia and North America. Common names include field wormwood, beach wormwood, northern wormwood, Breckland wormwood boreal wormwood, Canadian wormwood, field sagewort and field mugwort.
Tarragon (Artemisia dracunculus), also known as estragon, is a species of perennial herb in the sunflower family. It is widespread in the wild across much of Eurasia and North America, and is cultivated for culinary and medicinal purposes.
Artemisia frigida is a widespread species of flowering plant in the aster family, which is known as the sunflower family. It is native to Europe, Asia, and much of North America. In parts of the north-central and northeastern United States it is an introduced species.
Artemisia ludoviciana is a North American species in the daisy family, known by several common names, including silver wormwood, western mugwort, Louisiana wormwood, white sagebrush, and gray sagewort.
Achillea millefolium, commonly known as yarrow /ˈjæroʊ/ or common yarrow, is a flowering plant in the family Asteraceae. It is native to temperate regions of the Northern Hemisphere in Asia, Europe, and North America. It has been introduced as a feed for livestock in places like New Zealand and Australia. However, it is a weed in those places and sometimes also in ...more ↓
Gutierrezia sarothrae is a species of flowering plant in the daisy family known by the common names broom snakeweed, broomweed, snakeweed, and matchweed. It is a subshrub native to much of the western half of North America, from western Canada to northern Mexico, and can be found in a number of arid, grassland, and mountain habitats. It can be toxic ...more ↓
Solidago nana is a North American plant species in the sunflower family, with the common names baby goldenrod and dwarf goldenrod. The species is native to deserts and mountainsides in the western United States, from the Rocky Mountains to the Great Basin in the states of Idaho, Montana, Nevada, Utah, Wyoming, Colorado, Arizona, and New Mexico.
Solidago nemoralis is a species of flowering plant in the aster family, Asteraceae. It is native to North America, where it is widely found in Canada (every province except Newfoundland and Labrador) and the United States (all states wholly or partially east of the Rocky Mountains). Its common names include gray goldenrod, gray-stem goldenrod, old-field ...more ↓
Solidago rigida, also known by the common names stiff goldenrod and stiff-leaved goldenrod is a North American plant species in the Goldenrod family. It is native to the region between the Atlantic Coast and the Rockies, from Alberta east to Ontario, south as far as New Mexico, Texas, and Georgia. In New England, it grows today only in Connecticut, though there are ...more ↓
Solidago speciosa, the showy goldenrod, is a North American species of flowering plants in the sunflower family. It grows in the province of Ontario in central Canada, as well as in the eastern and central United States (from the Atlantic coast west as far as the Great Plains, so from Maine to Georgia (except Delaware) west as far as Texas, Nebraska, and the ...more ↓
Solidago missouriensis is a species of flowering plant in the aster family known by the common names Missouri goldenrod and prairie goldenrod. It is native to North America, where it is widespread across much of Canada, the United States, and northern Mexico. It grows from British Columbia east to Manitoba, south as far as Sonora, Coahuila, Texas, and ...more ↓
Solidago canadensis (Canada golden-rod, Canada goldenrod) is an herbaceous perennial plant of the family Asteraceae native to North America. It is often grown as a wildflower.
Solidago gigantea is a North American plant species in the sunflower family. Its common names include tall goldenrod and giant goldenrod, in reference to its height of up to 2 m tall, rather large for the genus, smooth goldenrod and late goldenrod. It is a widespread species known from most of non-arctic North America east of the Rocky Mountains. It ...more ↓
Solidago velutina, the threenerve goldenrod or velvety goldenrod, is a plant species native to Mexico and to the western United States. The species has been found in southwestern Oregon, east to the Black Hills of South Dakota, and as far south as México State in the central part of the Republic of México. It is classified as a member of Subsection ...more ↓
Symphyotrichum laeve (smooth blue aster, smooth aster, smooth-leaved aster, glaucous Michaelmas-daisy or glaucous aster) is a flowering plant native to Canada and the United States.
Symphyotrichum lanceolatum (syn. Aster lanceolatus) is a species of flowering plant in the aster family, Asteraceae. It is native to Canada and the United States. Common names include panicled aster, tall white aster, eastern line aster, lance-leaf aster, narrow-leaf Michaelmas daisy, and white-panicle aster.
Symphyotrichum ericoides (syn. Aster ericoides), known as white heath aster, white aster or heath aster, is a species of flowering plant in the family Asteraceae, native to much of North America. It has also been introduced to many areas beyond its native range.
Heterotheca villosa, called the hairy goldenaster, is a North American species of flowering plant in the aster family. It widespread across the central and western parts of the continent, from Ontario west to British Columbia and south as far as Illinois, Kansas, Nuevo León, Guanajuato, and northern Baja California.
Erigeron canadensis (synonym Conyza canadensis) is an annual plant native throughout most of North America and Central America. It is also widely naturalized in Eurasia and Australia. Common names include horseweed, Canadian horseweed, Canadian fleabane, coltstail, marestail, and butterweed. It was the first weed to have developed ...more ↓
Erigeron compositus is an Arctic and alpine species of fleabane in the daisy family. Common names include dwarf mountain fleabane, cutleaf daisy, and trifid mountain fleabane
Erigeron divergens is a species of flowering plant in the daisy family known by the common name spreading fleabane. It is native to western North America, including the western half of the United States, British Columbia and Alberta in Canada, and Baja California, Chihuahua, Durango, and Sonora in Mexico.
Erigeron flagellaris is a North American species of flowering plants in the daisy family known by the common names trailing fleabane.
Erigeron formosissimus is a North American species of flowering plants in the daisy family known by the common name beautiful fleabane.
Erigeron tracyi is a North American species of flowering plant in the daisy family known by the common name running fleabane. It is native to northern Mexico (Baja California, Chihuahua, Coahuila, Durango, Sonora, Zacatecas) and the southwestern United States (Arizona, Colorado, Kansas, Nevada, New Mexico, Oklahoma, Texas, Utah).
Herrickia glauca is a North American species of flowering plants in the aster family, called the gray aster. It is native to the western United States, primarily in Arizona, New Mexico, Utah, Colorado, and Wyoming, with a few populations in Idaho and Montana.
Grindelia squarrosa (curly-top gumweed or curly-cup gumweed) is a small North American biennial or short-lived perennial plant which grows to a height of 90 cm (appx. 3 ft) and bears yellow flowers from June to September. It was used by Great Plains Tribes as a medicinal herb.
Dieteria bigelovii (Bigelow's tansyaster) is a North American species of plants in the sunflower family. It is native to the southwestern United States (Arizona, New Mexico, Utah, Colorado, and Albany County in Wyoming).
Senecio integerrimus is a species of flowering plant in the aster family known by the common names lambstongue ragwort and tall western groundsel. It is native to western and central North America, where it grows in grassland, forest, and other habitat. It is a biennial or perennial herb producing a single erect stem 20 to 70 centimeters tall from a caudex with a ...more ↓
Senecio spartioides is a species of flowering plant in the aster family known by the common name broom-like ragwort. It is native to the western United States as far east as the Dakotas and Texas, and northern Mexico. It can be found in dry, rocky, often disturbed areas in a number of habitat types. It is a subshrub which can exceed a meter in height, its arching stems ...more ↓
Bidens frondosa is a North American species of flowering plant in the aster family, sunflower family. It is widespread across much of Canada, the United States, and Mexico It is known in many other parts of the world as an introduced species, including Europe, Asia, Morocco, and New Zealand. Its many common names include devil's beggarticks, devil's-pitchfork, ...more ↓
Ambrosia artemisiifolia, with the common names common ragweed, annual ragweed, and low ragweed, is a species of the genus Ambrosia native to regions of the Americas.
Ambrosia psilostachya is a species of ragweed known by the common names Cuman ragweed and perennial ragweed, and western ragweed.
Ambrosia tomentosa, the skeletonleaf bur ragweed, silverleaf povertyweed, or skeleton-leaf bursage, is a North American species of perennial plants in the (aster family).