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Scientific Name
Conyza canadensis
Scientific Name w/ Auth.
Conyza canadensis (L.) Cronquist
Park
Shiloh National Military Park (SHIL)
Sensitive
No
Park Accepted
Accepted
Record Status
Approved
Park Preferred Common Names
Canadian horseweed
Park Synonyms
Conyza canadensis var. canadensis
Taxonomic Hierarchy
| Kingdom | Plantae |
| Subkingdom | Viridiplantae |
| Infrakingdom | Streptophyta |
| Superdivision | Embryophyta |
| Division | Tracheophyta |
| Subdivision | Spermatophytina |
| Class | Magnoliopsida |
| Superorder | Asteranae |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Conyza |
| Species | Conyza canadensis |
Occurrence
Present
Occurrence Notes
Data Source: PLOTS database, NatureServe 2004
Nativeness
Native
Nativeness Notes
Data Source: http://plants.usda.gov, 10 August 2007
Abundance
Common
Abundance Notes
Old fields; Data Source: Jones and White 1981;PLOTS database, NatureServe 2004
Threatened Endangered Status
State Species of Concern statuses
Ozone Sensitive Status
NatureServe GRank
NatureServe SRank
Observations
7
References
Vouchers
0
External Links
0
Evidence counts shown include evidence for related synonyms.
Created By
sjd-CUPN
Created Date
1/30/2002 12:00:00 AM
Last Modified By
cbledsoe@nps.gov
Last Modified Date
5/29/2024 5:10:48 PM
Notes
Park Species Data Source: Jones and White 1981;PLOTS database, NatureServe 2004
Other Parks
Abraham Lincoln Birthplace National Historical Park (ABLI)
Acadia National Park (ACAD)
Agate Fossil Beds National Monument (AGFO)
Amistad National Recreation Area (AMIS)
Antietam National Battlefield (ANTI)
Apostle Islands National Lakeshore (APIS)
Appalachian National Scenic Trail (APPA)
Aztec Ruins National Monument (AZRU)
Badlands National Park (BADL)
Bent's Old Fort National Historic Site (BEOL)
Big Bend National Park (BIBE)
Bighorn Canyon National Recreation Area (BICA)
Big South Fork National River and Recreation Area (BISO)
Chattahoochee River National Recreation Area (CHAT)
Cumberland Gap National Historical Park (CUGA)
Colonial National Historical Park (COLO)
Cabrillo National Monument (CABR)
Cuyahoga Valley National Park (CUVA)
Chickamauga and Chattanooga National Military Park (CHCH)
Curecanti National Recreation Area (CURE)
Casa Grande Ruins National Monument (CAGR)
Chaco Culture National Historical Park (CHCU)
Big Thicket National Preserve (BITH)
Canaveral National Seashore (CANA)
Buffalo National River (BUFF)
Cowpens National Battlefield (COWP)
Charles Pinckney National Historic Site (CHPI)
Chiricahua National Monument (CHIR)
Channel Islands National Park (CHIS)
City Of Rocks National Reserve (CIRO)
Canyon De Chelly National Monument (CACH)
Boston Harbor Islands National Recreation Area (BOHA)
Chickasaw National Recreation Area (CHIC)
Cape Hatteras National Seashore (CAHA)
Coronado National Memorial (CORO)
Black Canyon of the Gunnison National Park (BLCA)
Carlsbad Caverns National Park (CAVE)
Cape Lookout National Seashore (CALO)
Colorado National Monument (COLM)
Capulin Volcano National Monument (CAVO)
Crater Lake National Park (CRLA)
Carl Sandburg Home National Historic Site (CARL)
Fort Point National Historic Site (FOPO)
Fort Frederica National Monument (FOFR)
Johnstown Flood National Memorial (JOFL)
Fort Union National Monument (FOUN)
Knife River Indian Villages National Historic Site (KNRI)
Delaware Water Gap National Recreation Area (DEWA)
Fort Laramie National Historic Site (FOLA)
Fort Caroline National Memorial (FOCA)
Lake Roosevelt National Recreation Area (LARO)
Kalaupapa National Historical Park (KALA)
Grand Canyon National Park (GRCA)
Isle Royale National Park (ISRO)
Gateway National Recreation Area (GATE)
Fort Vancouver National Historic Site (FOVA)
Homestead National Historical Park (HOME)
Fort Donelson National Battlefield (FODO)
Fire Island National Seashore (FIIS)
Hot Springs National Park (HOSP)
Gettysburg National Military Park (GETT)
El Malpais National Monument (ELMA)
Guadalupe Mountains National Park (GUMO)
Grand Teton National Park (GRTE)
Jewel Cave National Monument (JECA)
El Morro National Monument (ELMO)
Lake Mead National Recreation Area (LAKE)
John Muir National Historic Site (JOMU)
Fort Pulaski National Monument (FOPU)
Herbert Hoover National Historic Site (HEHO)
Hopewell Culture National Historical Park (HOCU)
Glacier National Park (GLAC)
Great Smoky Mountains National Park (GRSM)
Indiana Dunes National Park (INDU)
Fort Larned National Historic Site (FOLS)
Guilford Courthouse National Military Park (GUCO)
Hubbell Trading Post National Historic Site (HUTR)
Great Sand Dunes National Park and Preserve (GRSA)
George Washington Carver National Monument (GWCA)
Fort Bowie National Historic Site (FOBO)
Kenilworth Park and Aquatic Gardens (KEAQ)
George Washington Birthplace National Monument (GEWA)
Fort Union Trading Post National Historic Site (FOUS)
Devils Tower National Monument (DETO)
Fort Sumter National Historical Park (FOSU)
Joshua Tree National Park (JOTR)
Effigy Mounds National Monument (EFMO)
Gila Cliff Dwellings National Monument (GICL)
John Day Fossil Beds National Monument (JODA)
Grand Portage National Monument (GRPO)
Kennesaw Mountain National Battlefield Park (KEMO)
Hopewell Furnace National Historic Site (HOFU)
George Washington Memorial Parkway (GWMP)
Great Falls Park (GRFA)
Ebey's Landing National Historical Reserve (EBLA)
First State National Historical Park (FRST)
Gulf Islands National Seashore (GUIS)
Mississippi National River and Recreation Areas (MISS)
Yosemite National Park (YOSE)
Organ Pipe Cactus National Monument (ORPI)
Thomas Stone National Historic Site (THST)
Tallgrass Prairie National Preserve (TAPR)
San Antonio Missions National Historical Park (SAAN)
Manassas National Battlefield Park (MANA)
Ozark National Scenic Riverways (OZAR)
Martin Van Buren National Historic Site (MAVA)
North Cascades National Park (NOCA)
Sleeping Bear Dunes National Lakeshore (SLBE)
Mesa Verde National Park (MEVE)
Petersburg National Battlefield (PETE)
Stones River National Battlefield (STRI)
Saratoga National Historical Park (SARA)
Mojave National Preserve (MOJA)
Voyageurs National Park (VOYA)
Mammoth Cave National Park (MACA)
Oregon Caves National Monument (ORCA)
Rainbow Bridge National Monument (RABR)
Theodore Roosevelt National Park (THRO)
Suitland Parkway (SUIT)
Morristown National Historical Park (MORR)
White Sands National Park (WHSA)
Mount Rushmore National Memorial (MORU)
Tumacacori National Historical Park (TUMA)
Yucca House National Monument (YUHO)
Scotts Bluff National Monument (SCBL)
Pecos National Historical Park (PECO)
Rocky Mountain National Park (ROMO)
Saint Croix National Scenic Riverway (SACN)
Walnut Canyon National Monument (WACA)
Tuzigoot National Monument (TUZI)
Monocacy National Battlefield (MONO)
Pipestone National Monument (PIPE)
Pea Ridge National Military Park (PERI)
Missouri National Recreational River (MNRR)
Petroglyph National Monument (PETR)
Wilson's Creek National Battlefield (WICR)
Presidio of San Francisco (PRSF)
Whitman Mission National Historic Site (WHMI)
Rock Creek Park (ROCR)
Prince William Forest Park (PRWI)
Sagamore Hill National Historic Site (SAHI)
Sequoia and Kings Canyon National Parks (SEKI)
Obed Wild and Scenic River (OBRI)
Lyndon B. Johnson National Historical Park (LYJO)
Little River Canyon National Preserve (LIRI)
Navajo National Monument (NAVA)
Wind Cave National Park (WICA)
Montezuma Castle National Monument (MOCA)
Petrified Forest National Park (PEFO)
Mount Rainier National Park (MORA)
Valley Forge National Historical Park (VAFO)
Tonto National Monument (TONT)
Minute Man National Historical Park (MIMA)
Pictured Rocks National Lakeshore (PIRO)
Yellowstone National Park (YELL)
Wolf Trap National Park for the Performing Arts (WOTR)
Nez Perce National Historical Park (NEPE)
Timucuan Ecological and Historic Preserve (TIMU)
War in the Pacific National Historical Park (WAPA)
Washita Battlefield National Historic Site (WABA)
Padre Island National Seashore (PAIS)
Saguaro National Park (SAGU)
Richmond National Battlefield Park (RICH)
New River Gorge National Park and Preserve (NERI)
Acadia National Park (ACAD)
Agate Fossil Beds National Monument (AGFO)
Amistad National Recreation Area (AMIS)
Antietam National Battlefield (ANTI)
Apostle Islands National Lakeshore (APIS)
Appalachian National Scenic Trail (APPA)
Aztec Ruins National Monument (AZRU)
Badlands National Park (BADL)
Bent's Old Fort National Historic Site (BEOL)
Big Bend National Park (BIBE)
Bighorn Canyon National Recreation Area (BICA)
Big South Fork National River and Recreation Area (BISO)
Chattahoochee River National Recreation Area (CHAT)
Cumberland Gap National Historical Park (CUGA)
Colonial National Historical Park (COLO)
Cabrillo National Monument (CABR)
Cuyahoga Valley National Park (CUVA)
Chickamauga and Chattanooga National Military Park (CHCH)
Curecanti National Recreation Area (CURE)
Casa Grande Ruins National Monument (CAGR)
Chaco Culture National Historical Park (CHCU)
Big Thicket National Preserve (BITH)
Canaveral National Seashore (CANA)
Buffalo National River (BUFF)
Cowpens National Battlefield (COWP)
Charles Pinckney National Historic Site (CHPI)
Chiricahua National Monument (CHIR)
Channel Islands National Park (CHIS)
City Of Rocks National Reserve (CIRO)
Canyon De Chelly National Monument (CACH)
Boston Harbor Islands National Recreation Area (BOHA)
Chickasaw National Recreation Area (CHIC)
Cape Hatteras National Seashore (CAHA)
Coronado National Memorial (CORO)
Black Canyon of the Gunnison National Park (BLCA)
Carlsbad Caverns National Park (CAVE)
Cape Lookout National Seashore (CALO)
Colorado National Monument (COLM)
Capulin Volcano National Monument (CAVO)
Crater Lake National Park (CRLA)
Carl Sandburg Home National Historic Site (CARL)
Fort Point National Historic Site (FOPO)
Fort Frederica National Monument (FOFR)
Johnstown Flood National Memorial (JOFL)
Fort Union National Monument (FOUN)
Knife River Indian Villages National Historic Site (KNRI)
Delaware Water Gap National Recreation Area (DEWA)
Fort Laramie National Historic Site (FOLA)
Fort Caroline National Memorial (FOCA)
Lake Roosevelt National Recreation Area (LARO)
Kalaupapa National Historical Park (KALA)
Grand Canyon National Park (GRCA)
Isle Royale National Park (ISRO)
Gateway National Recreation Area (GATE)
Fort Vancouver National Historic Site (FOVA)
Homestead National Historical Park (HOME)
Fort Donelson National Battlefield (FODO)
Fire Island National Seashore (FIIS)
Hot Springs National Park (HOSP)
Gettysburg National Military Park (GETT)
El Malpais National Monument (ELMA)
Guadalupe Mountains National Park (GUMO)
Grand Teton National Park (GRTE)
Jewel Cave National Monument (JECA)
El Morro National Monument (ELMO)
Lake Mead National Recreation Area (LAKE)
John Muir National Historic Site (JOMU)
Fort Pulaski National Monument (FOPU)
Herbert Hoover National Historic Site (HEHO)
Hopewell Culture National Historical Park (HOCU)
Glacier National Park (GLAC)
Great Smoky Mountains National Park (GRSM)
Indiana Dunes National Park (INDU)
Fort Larned National Historic Site (FOLS)
Guilford Courthouse National Military Park (GUCO)
Hubbell Trading Post National Historic Site (HUTR)
Great Sand Dunes National Park and Preserve (GRSA)
George Washington Carver National Monument (GWCA)
Fort Bowie National Historic Site (FOBO)
Kenilworth Park and Aquatic Gardens (KEAQ)
George Washington Birthplace National Monument (GEWA)
Fort Union Trading Post National Historic Site (FOUS)
Devils Tower National Monument (DETO)
Fort Sumter National Historical Park (FOSU)
Joshua Tree National Park (JOTR)
Effigy Mounds National Monument (EFMO)
Gila Cliff Dwellings National Monument (GICL)
John Day Fossil Beds National Monument (JODA)
Grand Portage National Monument (GRPO)
Kennesaw Mountain National Battlefield Park (KEMO)
Hopewell Furnace National Historic Site (HOFU)
George Washington Memorial Parkway (GWMP)
Great Falls Park (GRFA)
Ebey's Landing National Historical Reserve (EBLA)
First State National Historical Park (FRST)
Gulf Islands National Seashore (GUIS)
Mississippi National River and Recreation Areas (MISS)
Yosemite National Park (YOSE)
Organ Pipe Cactus National Monument (ORPI)
Thomas Stone National Historic Site (THST)
Tallgrass Prairie National Preserve (TAPR)
San Antonio Missions National Historical Park (SAAN)
Manassas National Battlefield Park (MANA)
Ozark National Scenic Riverways (OZAR)
Martin Van Buren National Historic Site (MAVA)
North Cascades National Park (NOCA)
Sleeping Bear Dunes National Lakeshore (SLBE)
Mesa Verde National Park (MEVE)
Petersburg National Battlefield (PETE)
Stones River National Battlefield (STRI)
Saratoga National Historical Park (SARA)
Mojave National Preserve (MOJA)
Voyageurs National Park (VOYA)
Mammoth Cave National Park (MACA)
Oregon Caves National Monument (ORCA)
Rainbow Bridge National Monument (RABR)
Theodore Roosevelt National Park (THRO)
Suitland Parkway (SUIT)
Morristown National Historical Park (MORR)
White Sands National Park (WHSA)
Mount Rushmore National Memorial (MORU)
Tumacacori National Historical Park (TUMA)
Yucca House National Monument (YUHO)
Scotts Bluff National Monument (SCBL)
Pecos National Historical Park (PECO)
Rocky Mountain National Park (ROMO)
Saint Croix National Scenic Riverway (SACN)
Walnut Canyon National Monument (WACA)
Tuzigoot National Monument (TUZI)
Monocacy National Battlefield (MONO)
Pipestone National Monument (PIPE)
Pea Ridge National Military Park (PERI)
Missouri National Recreational River (MNRR)
Petroglyph National Monument (PETR)
Wilson's Creek National Battlefield (WICR)
Presidio of San Francisco (PRSF)
Whitman Mission National Historic Site (WHMI)
Rock Creek Park (ROCR)
Prince William Forest Park (PRWI)
Sagamore Hill National Historic Site (SAHI)
Sequoia and Kings Canyon National Parks (SEKI)
Obed Wild and Scenic River (OBRI)
Lyndon B. Johnson National Historical Park (LYJO)
Little River Canyon National Preserve (LIRI)
Navajo National Monument (NAVA)
Wind Cave National Park (WICA)
Montezuma Castle National Monument (MOCA)
Petrified Forest National Park (PEFO)
Mount Rainier National Park (MORA)
Valley Forge National Historical Park (VAFO)
Tonto National Monument (TONT)
Minute Man National Historical Park (MIMA)
Pictured Rocks National Lakeshore (PIRO)
Yellowstone National Park (YELL)
Wolf Trap National Park for the Performing Arts (WOTR)
Nez Perce National Historical Park (NEPE)
Timucuan Ecological and Historic Preserve (TIMU)
War in the Pacific National Historical Park (WAPA)
Washita Battlefield National Historic Site (WABA)
Padre Island National Seashore (PAIS)
Saguaro National Park (SAGU)
Richmond National Battlefield Park (RICH)
New River Gorge National Park and Preserve (NERI)
