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About Weeds of the U.S.
NRCS Invasive Species Policy
Invasive Species Executive Order 13112
U.S. Weeds with Scientific Name =H*
66 records returned
Click on an accepted name below to view its PLANTS Profile with more information, and
web links if available. Invasive plants that are synonyms are indented beneath the
current PLANTS accepted name.
You may view invasive lists by source by clicking
on the source acronyms at the top of the report.
| U.S. |
USDA, Animal and Plant Health Inspection Service (APHIS), Plant Protection and Quarantine (PPQ). Federal noxious weed list (1 February 2012). USDA, APHIS, PPQ, Washington, DC. |
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USDA, Animal and Plant Health Inspection Service (APHIS), Plant Protection and Quarantine (PPQ). State Plant Regulatory Officials letters. National Plant Board |
| STATE |
Assorted authors. 200_. State noxious weed lists for 46 states. State agriculture or natural resource departments. |
| Cal-IPC |
California Invasive Plant Council. California Invasive Plant Inventory. Cal-IPC Publication 2006-02 (1 February 2007). California Invasive Plant Council, Berkeley, California. |
| FLEPPC |
Florida Exotic Pest Plant Council. Invasive plant list (19 October 1999). Florida Exotic Pest Plant Council, Florida. |
| HEAR |
USDI, Geological Survey. Information index for selected alien plants in Hawaii (20 October 2003). Hawaiian Ecosystems at Risk Project, Biological Resources Division, Haleakala Field Station, Makawao, Hawaii. |
| KY |
Haragan, P.D. Weeds of Kentucky and adjacent states: a field guide. The University Press of Kentucky, Lexington, Kentucky. |
| N'EAST |
Uva, R.H., J.C. Neal, & J.M. DiTomaso. Weeds of the Northeast. Cornell University Press, Ithaca, New York. |
| NE&GP |
Stubbendieck, J., G.Y. Friisoe, & M.R. Bolick. Weeds of Nebraska and the Great Plains. Nebraska Department of Agriculture, Bureau of Plant Industry, Lincoln, Nebraska. |
| SEEPPC |
Southeast Exotic Pest Plant Council. Invasive exotic pest plants in Tennessee (19 October 1999). Research Committee of the Tennessee Exotic Pest Plant Council, Tennessee. |
| SWSS |
Southern Weed Science Society. Weeds of the United States and Canada. CD-ROM. Southern Weed Science Society, Champaign, Illinois. |
| WI |
Hoffman, R. & K. Kearns (eds.). Wisconsin manual of control recommendations for ecologically invasive plants. Wisconsin Dept. Natural Resources, Madison, Wisconsin. |
| WSWS |
Whitson, T.D. (ed.) et al. Weeds of the West. Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming, Laramie, Wyoming. |
| Symbol |
Common Name
Scientific Name |
Source |
Native Status* |
HECO11 |
'awapuhi-ke'oke'o
Hedychium coronarium |
HEAR |
L48 (I), HI (I), PR (I) |
HISY |
althea
Hibiscus syriacus |
SEEPPC |
L48 (I) |
HEAN3 |
annual sunflower
Helianthus annuus |
STATE, NE&GP, SWSS, WSWS |
L48 (N), AK (I), HI (I), PR (I), CAN (I), SPM (I) |
HEFL5 |
awapuhi melemele
Hedychium flavescens |
HEAR |
HI (I), PR (I) |
HAGL |
barilla
Halogeton glomeratus |
STATE, Cal-IPC, WSWS |
L48 (I) |
HEAM |
bitter sneezeweed
Helenium amarum |
KY, SWSS |
L48 (N) |
HEAU |
bitterweed
Helenium autumnale |
NE&GP |
L48 (N), CAN (N) |
HYNI |
black henbane
Hyoscyamus niger |
STATE, WSWS |
L48 (I), CAN (I) |
HITR |
bladder ketmia
Hibiscus trionum |
STATE, KY, N'EAST, NE&GP, SWSS, WSWS |
L48 (I), CAN (I) |
HACA2 |
bloodwoodtree
Haematoxylum campechianum |
HEAR |
HI (I), PR (I), VI (I) |
HELI2 |
blue mudplantain
Heteranthera limosa |
SWSS |
L48 (N), PR (N) |
HECI |
blueweed
Helianthus ciliaris |
STATE, SWSS, WSWS |
L48 (N) |
HESU3 |
camphorweed
Heterotheca subaxillaris |
NE&GP, WSWS |
L48 (N) |
HICA3 |
Canadian hawkweed
Hieracium canadense |
WI |
L48 (N) |
HYCA11 |
Canary Island St. Johnswort
Hypericum canariense |
HEAR |
L48 (I), HI (I) |
HYPE3 |
comb hyptis
Hyptis pectinata |
STATE |
L48 (I), HI (I), PR (N), VI (N) |
HOVU |
common barley
Hordeum vulgare |
SWSS |
L48 (I), AK (I), HI (I), CAN (W), GL (W) |
HYRA3 |
common cat's-ear
Hypochaeris radicata |
STATE, HEAR, WSWS |
L48 (I), AK (I), HI (I), CAN (I), SPM (I) |
HEMA80
HELA4 |
common cowparsnip
Heracleum maximum
Heracleum lanatum |
WSWS |
L48 (N), AK (N), CAN (N), SPM (N) |
HEAU |
common sneezeweed
Helenium autumnale |
NE&GP |
L48 (N), CAN (N) |
HYPE |
common St. John's wort
Hypericum perforatum |
STATE, Cal-IPC, NE&GP, SEEPPC, SWSS, WI, WSWS |
L48 (I), HI (I), CAN (I), SPM (I) |
HEAN3 |
common sunflower
Helianthus annuus |
STATE, NE&GP, SWSS, WSWS |
L48 (N), AK (I), HI (I), PR (I), CAN (I), SPM (I) |
HOLA |
common velvetgrass
Holcus lanatus |
Cal-IPC, HEAR, N'EAST, WSWS |
L48 (I), AK (I), HI (I), PR (I), CAN (I) |
HEMA80
HELA4 |
cow parsnip
Heracleum maximum
Heracleum lanatum |
WSWS |
L48 (N), AK (N), CAN (N), SPM (N) |
HEMA3 |
dame's rocket
Hesperis matronalis |
STATE, NE&GP, SEEPPC, WI |
L48 (I), AK (I), CAN (I) |
HEMA3 |
dames violet
Hesperis matronalis |
STATE, NE&GP, SEEPPC, WI |
L48 (I), AK (I), CAN (I) |
HELI2 |
ducksalad
Heteranthera limosa |
SWSS |
L48 (N), PR (N) |
HYPO3 |
East Indian hygrophila
Hygrophila polysperma |
US, STATE, FLEPPC |
L48 (I) |
HEHE |
English ivy
Hedera helix |
STATE, Cal-IPC, SEEPPC, WI |
L48 (I), HI (I), CAN (I) |
HEHI12 |
English ivy
Hedera hibernica |
STATE |
L48 (I) |
HYRA3 |
false dandelion
Hypochaeris radicata |
STATE, HEAR, WSWS |
L48 (I), AK (I), HI (I), CAN (I), SPM (I) |
HEAU |
false sunflower
Helenium autumnale |
NE&GP |
L48 (N), CAN (N) |
HYPE3 |
fausse menthe
Hyptis pectinata |
STATE |
L48 (I), HI (I), PR (N), VI (N) |
HICA10
HIPR |
field hawkweed
Hieracium caespitosum
Hieracium pratense |
STATE
STATE, N'EAST |
L48 (I), CAN (I) |
HYVE3 |
Florida elodea
Hydrilla verticillata |
US, STATE, Cal-IPC, FLEPPC, SEEPPC |
L48 (I) |
HITR |
flower-of-an-hour
Hibiscus trionum |
STATE, KY, N'EAST, NE&GP, SWSS, WSWS |
L48 (I), CAN (I) |
HOJU |
foxtail barley
Hordeum jubatum |
NE&GP, SWSS, WSWS |
L48 (N), AK (N), CAN (N), SPM (N) |
HYMO6 |
frogbit
Hydrocharis morsus-ranae |
STATE |
L48 (I), CAN (I) |
HYRA3 |
frogbit
Hypochaeris radicata |
STATE, HEAR, WSWS |
L48 (I), AK (I), HI (I), CAN (I), SPM (I) |
HEMA17 |
giant hogweed
Heracleum mantegazzianum |
US, STATE |
L48 (I), CAN (I) |
HECO11 |
gingerlily
Hedychium coronarium |
HEAR |
L48 (I), HI (I), PR (I) |
HETU |
girasole
Helianthus tuberosus |
N'EAST, NE&GP, SWSS |
L48 (N), CAN (N) |
HESU3 |
golden aster
Heterotheca subaxillaris |
NE&GP, WSWS |
L48 (N) |
HYRA3 |
gosmore
Hypochaeris radicata |
STATE, HEAR, WSWS |
L48 (I), AK (I), HI (I), CAN (I), SPM (I) |
HYRA3 |
hairy cat's ear
Hypochaeris radicata |
STATE, HEAR, WSWS |
L48 (I), AK (I), HI (I), CAN (I), SPM (I) |
HAGL |
halogeton
Halogeton glomeratus |
STATE, Cal-IPC, WSWS |
L48 (I) |
HOMUL
HOLE |
hare barley
Hordeum murinum ssp. leporinum
Hordeum leporinum |
WSWS |
L48 (I), HI (I), CAN (I) |
HIERA |
hawkweed
Hieracium |
STATE |
|
HEHE5 |
heliopsis sunflower
Heliopsis helianthoides |
NE&GP |
L48 (N), CAN (N) |
HIBE2 |
hiptage
Hiptage benghalensis |
FLEPPC, HEAR |
|
HOGL2 |
hog potato
Hoffmannseggia glauca |
SWSS, WSWS |
L48 (N) |
HYVE3 |
hydrilla
Hydrilla verticillata |
US, STATE, Cal-IPC, FLEPPC, SEEPPC |
L48 (I) |
HYPO3 |
Indian swampweed
Hygrophila polysperma |
US, STATE, FLEPPC |
L48 (I) |
HUJA |
Japanese hops
Humulus japonicus |
STATE |
L48 (I), CAN (I) |
HYRU2 |
jaragua
Hyparrhenia rufa |
HEAR |
L48 (I), HI (I), PR (I) |
HETU |
Jerusalem artichoke
Helianthus tuberosus |
N'EAST, NE&GP, SWSS |
L48 (N), CAN (N) |
HETU |
Jerusalem sunflower
Helianthus tuberosus |
N'EAST, NE&GP, SWSS |
L48 (N), CAN (N) |
HEGA |
Kahili ginger
Hedychium gardnerianum |
HEAR |
HI (I) |
HERE |
kidneyleaf mudplantain
Heteranthera reniformis |
SWSS |
L48 (N), PR (N) |
HYPE |
Klamathweed
Hypericum perforatum |
STATE, Cal-IPC, NE&GP, SEEPPC, SWSS, WI, WSWS |
L48 (I), HI (I), CAN (I), SPM (I) |
HOMUL
HOLE |
leporinum barley
Hordeum murinum ssp. leporinum
Hordeum leporinum |
WSWS |
L48 (I), HI (I), CAN (I) |
HEPE8 |
licorice plant
Helichrysum petiolare |
Cal-IPC |
L48 (I) |
HOPU |
little barley
Hordeum pusillum |
NE&GP, SWSS |
L48 (N), CAN (N) |
HOPU |
little wildbarley
Hordeum pusillum |
NE&GP, SWSS |
L48 (N), CAN (N) |
HITI |
mahoe
Hibiscus tiliaceus |
FLEPPC |
L48 (I), HI (I) |
HICA10 |
meadow hawkweed
Hieracium caespitosum |
STATE |
L48 (I), CAN (I) |
HICA10
HIPR |
meadow hawkweed
Hieracium caespitosum
Hieracium pratense |
STATE
STATE, N'EAST |
L48 (I), CAN (I) |
HIFL3 |
meadow hawkweed
Hieracium ×floribundum |
STATE |
L48 (I), CAN (I), SPM (I) |
HIPI2 |
meadow hawkweed
Hieracium piloselloides |
STATE |
L48 (I), CAN (I) |
HYPE3 |
mint weed
Hyptis pectinata |
STATE |
L48 (I), HI (I), PR (N), VI (N) |
HYPO3 |
Miramar weed
Hygrophila polysperma |
US, STATE, FLEPPC |
L48 (I) |
HAMA7
ERMA16 |
moon cactus
Harrisia martinii
Eriocereus martinii |
STATE |
HI (I) |
HIPI |
mouseear hawkweed
Hieracium pilosella |
STATE |
L48 (I), AK (I), CAN (I), SPM (I) |
HYSU3 |
mumutun
Hyptis suaveolens |
STATE |
HI (I), PR (N), VI (N) |
HYPE3 |
mumutun lahe
Hyptis pectinata |
STATE |
L48 (I), HI (I), PR (N), VI (N) |
HENU |
Nuttall sunflower
Helianthus nuttallii |
WSWS |
L48 (N), CAN (N) |
HEFU |
orange day lily
Hemerocallis fulva |
WI |
L48 (I), CAN (I) |
HIAU |
orange hawkweed
Hieracium aurantiacum |
STATE, WI, WSWS |
L48 (I), AK (I), CAN (I), SPM (I) |
HEHE5 |
oxeye
Heliopsis helianthoides |
NE&GP |
L48 (N), CAN (N) |
HESU4 |
pearlflower
Heterocentron subtriplinervium |
HEAR |
HI (I) |
HOGL2 |
pignut
Hoffmannseggia glauca |
SWSS, WSWS |
L48 (N) |
HOGL2
HODE |
pignut
Hoffmannseggia glauca
Hoffmannseggia densiflora |
SWSS, WSWS
STATE |
L48 (N) |
HIAT2 |
polar hawkweed
Hieracium atratum |
STATE |
|
HEPE |
prairie sunflower
Helianthus petiolaris |
SWSS |
L48 (N), CAN (N) |
HYPE3 |
purple top
Hyptis pectinata |
STATE |
L48 (I), HI (I), PR (N), VI (N) |
HISY |
rose of Sharon
Hibiscus syriacus |
SEEPPC |
L48 (I) |
HITR |
rosemallow
Hibiscus trionum |
STATE, KY, N'EAST, NE&GP, SWSS, WSWS |
L48 (I), CAN (I) |
HEHI |
rough falsepennyroyal
Hedeoma hispida |
NE&GP |
L48 (N), CAN (N) |
HEHI |
rough pennyroyal
Hedeoma hispida |
NE&GP |
L48 (N), CAN (N) |
HAHA8 |
Russian salt tree
Halimodendron halodendron |
STATE |
L48 (I), CAN (I) |
HEGR4 |
Sawtooth sunflower
Helianthus grosseserratus |
NE&GP |
L48 (N), CAN (I) |
HITI |
sea hibiscus
Hibiscus tiliaceus |
FLEPPC |
L48 (I), HI (I) |
HISY |
shrub althea
Hibiscus syriacus |
SEEPPC |
L48 (I) |
HILA4 |
smooth hawkweed
Hieracium laevigatum |
STATE |
L48 (N) |
HEHE5 |
smooth oxeye
Heliopsis helianthoides |
NE&GP |
L48 (N), CAN (N) |
HYRA3 |
spotted catsear
Hypochaeris radicata |
STATE, HEAR, WSWS |
L48 (I), AK (I), HI (I), CAN (I), SPM (I) |
HYPE |
St. John's wort
Hypericum perforatum |
STATE, Cal-IPC, NE&GP, SEEPPC, SWSS, WI, WSWS |
L48 (I), HI (I), CAN (I), SPM (I) |
HEAN3 |
sunflower
Helianthus annuus |
STATE, NE&GP, SWSS, WSWS |
L48 (N), AK (I), HI (I), PR (I), CAN (I), SPM (I) |
HECO10 |
tanglehead
Heteropogon contortus |
STATE |
L48 (N), HI (N), PR (N), VI (N) |
HECI |
Texas blueweed
Helianthus ciliaris |
STATE, SWSS, WSWS |
L48 (N) |
HYPE3 |
timothi ni vavalangi
Hyptis pectinata |
STATE |
L48 (I), HI (I), PR (N), VI (N) |
HOLA |
velvetgrass
Holcus lanatus |
Cal-IPC, HEAR, N'EAST, WSWS |
L48 (I), AK (I), HI (I), PR (I), CAN (I) |
HITR |
Venice mallow
Hibiscus trionum |
STATE, KY, N'EAST, NE&GP, SWSS, WSWS |
L48 (I), CAN (I) |
HYVE3 |
water thyme
Hydrilla verticillata |
US, STATE, Cal-IPC, FLEPPC, SEEPPC |
L48 (I) |
HYAM2 |
West Indian marsh grass
Hymenachne amplexicaulis |
FLEPPC |
L48 (N), PR (N) |
HECO11 |
white ginger
Hedychium coronarium |
HEAR |
L48 (I), HI (I), PR (I) |
HEPO4 |
white moho
Heliocarpus popayanensis |
HEAR |
HI (I) |
HOMUL
HOLE |
wild barley
Hordeum murinum ssp. leporinum
Hordeum leporinum |
WSWS |
L48 (I), HI (I), CAN (I) |
HYSU3 |
wild spikenard
Hyptis suaveolens |
STATE |
HI (I), PR (N), VI (N) |
HEAN3 |
wild sunflower
Helianthus annuus |
STATE, NE&GP, SWSS, WSWS |
L48 (N), AK (I), HI (I), PR (I), CAN (I), SPM (I) |
HEFL5 |
yellow ginger
Hedychium flavescens |
HEAR |
HI (I), PR (I) |
HICA10 |
yellow hawkweed
Hieracium caespitosum |
STATE |
L48 (I), CAN (I) |
HICA10
HIPR |
yellow hawkweed
Hieracium caespitosum
Hieracium pratense |
STATE
STATE, N'EAST |
L48 (I), CAN (I) |
HICA3 |
yellow hawkweed
Hieracium canadense |
WI |
L48 (N) |
HICA10
HIPR |
yellow kingdevil
Hieracium caespitosum
Hieracium pratense |
STATE
STATE, N'EAST |
L48 (I), CAN (I) |
HEAM |
yellowdicks
Helenium amarum |
KY, SWSS |
L48 (N) |
HECI |
yerba parda
Helianthus ciliaris |
STATE, SWSS, WSWS |
L48 (N) |
HOLA |
Yorkshire fog
Holcus lanatus |
Cal-IPC, HEAR, N'EAST, WSWS |
L48 (I), AK (I), HI (I), PR (I), CAN (I) |
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