Noxious Weeds of United States 
The weeds considered noxious by the states and the District of Columbia 
are given in the following list. There is considerable variation in the common 
names used for the same weeds in different parts of the country and in all cases 
the scientific names given do not clear up this confusion. 
most commonly used names will be found the states legislating against that 
particular weed or species (spp.) of weeds. No effort has been made to show 
how the weeds are classified or legislated against by the states, this may 
be obtained from the State Seed Laws (see page 106 and following). é 
A 
Alkali mallow (Sida hederacea). See 
Mallow, alkali. 
Alyssum, Hoary (Berteroa incana). See 
Hoary alyssum. 
Australian burnweed (Erechtites pre- 
nanthoides). See Burnweed, Austra- 
lian. 
Austrian fieldcress (Radicula austriaca, 
Rorippa austriaca). See Fieldcress, 
Austrian. 
Austrian peaweed (Swainsona salsula). 
Colo., Wyo. 
B 
Ball cress (Hymenophysa pubescens). 
See Hoary cress. 
Ball mustard (Neslia paniculata). See 
Mustard, ball. 
Barley, wild (Hordeum jubatum, H. 
murinum) Squirrel-tail grass. Ariz. 
Bassia, five-hook (Bassia hyssopifolia). 
Nev. 
Bearded darnell (Lolium temulentum). 
See Darnell, bearded. 
Bermuda grass (Cynodon dactylon, Ca- 
priola dactylon) Wire grass. Ala., 
Ark., Call, Fla.; Ga., Md:; Miss., Tex., 
Us Vay Dae: 
Big mouse-ear (Cerastium vulgatum). 
See Chickweed, big mouse-ear. 
Bindweed, field (Convolvulus arvensis) 
Creeping Jennie, Morning-glory, Tie- 
vine, Wild morning-glory. Ala., Ariz., 
Ark., Cal., Colo., Fla., Ga. (spp), Ida., 
Tie Ind SlasseKansweluas sles vide 
Mich., Minn., Miss., Mo., Mont., Neb., 
Nev., N. H., N. C., N. Dak., Okla., Ore., 
Pa. (spp), S. Dak., Tenn., Tex. (spp), 
U., Wash., Wis., Wyo., D. C. 
Bindweed, hedge (Convolvulus sepium) 
Wild morning-glory. Ark., Ga. (spp), 
Ida., Kan., Okla., Pa. (spp), S. Dak., 
Tex. (spp), Wash. 
Bitter dock (Rumezx obtusifolius). See 
Dock, bitter. 
Bitterweed (Helenium tenuifolium). Ga. 
Bitter wintercress (Campe barbarea). 
See Wintercress, bitter. 
Black-eye Susan (Rudbeckia hirta) Ox- 
eye daisy. La. 
Black mustard (Brassica nigra). See 
Mustard, black. 
Black nightshade (Solanum nigrum). 
See Nightshade, black. 
Black seeded plantain (Plantago ru- 
geliit). See Plantain, black seeded. 
Bladder campion (Silene latifolia). See 
Campion, bladder. 
Blue lee (Lappula echinata). See Stick- 
seed. 
226 
Compiled by 
L. J. LA PINE 
Commercial Seed Analyst 
Blue flowering lettuce (Lactuca pul- 
chella). See Lettuce, blue flowering. 
Blue sunflower (Helianthus ciliaris). 
See Blueweed. Texas. 
Blueweed (Echium vulgare). Me. 
Blueweed, Texas (Helianthus ciliaris) 
Blue sunflower. Ariz., Cal., Okla., 
Tex. 
Bottle bush plantain (Plantago aristata). 
See Plantain, bracted. 
Bracted plantain (Plantago aristata). 
See Plantain, bracted. 
Buckhorn plantain (Plantago lanceo- 
lata) English plantain. Ala., Ariz., 
Ark., Colo., Del., Conn. (spp), Fla., 
Ga. (spp), Ida., Ill., Ind. Ia. Kan., 
Ky., La. Me., Mass., Minn., Miss. 
(spp), Mo. (spp), O. (spp), Okla., 
Ore., R. I., Tex., Tenn., Wash. (spp), 
W. Va., Wis. 
Buckwheat, wild (Polygonum convol- 
vulus). Okla. 
Buffalo bur (Solanum rostratum). Nev., 
Okla. (spp). 
Bull nettle (Solanum carolinense). See 
Horse nettle. 
Bullthistle (Cirsium lanceolatum). U. 
Burdock, smaller (Arctium minus). U. 
Bur buttercup (Ronuneulus testicala- 
tus). See Buttercup, bur. 
Bur grass (Cenchrus pauciflorus). See 
Sand bur. 
Burnweed, Australian (Erechtites pre- 
nanthoides) Fireweed. Ore. 
Buttercup, bur (Ronuneulus testicala- 
tus). U. 
Butterprint (Abutilon theophrasti). Ia. 
Cc 
Camelthorn (Alhagi camelorum). Ariz., 
Cal., Nev., Wash., Wyo. 
Campion, bladder (Silene latifolia). Me. 
Campion, white (Lychnis alba). Me. 
Canada thistle (Cirsium arvense, Car- 
duus arvensis). Ariz., Cal. Colo., 
Conn. Del. Gaveldaw Lily india’ 
Kan., Ky., Me.,, Md., Mass., Mich., 
Minn., Mo., Mont., Neb., Nev., N. H., 
Nida Nu Xj2Na.Dak.O. Oklay, Ores 
PaweRotonC>o of Daksshenne Uiavate 
Va., Wash., W. Va., Wis., Wyo., D. C. 
Carrot, wild (Daucus carota), I1., Ind., 
Ia., Kan., Me., Mich., Mo., O., Okla., 
Relwio, Dake We Va: 
Catchfly, night-flowering (Silene nocti- 
flora). Me. 
Cats-ear, spotted (Hypochaeris radi- 
cata). Ore. 
Charlock (Brassica arvensis). See Mus- 
tard, wild. 
Cheat | 
7 i b = 
Chess § (Bromus secalinus, B. comnu 
Listed under the 
tatus). Ala., Ark., Fla. Ga. (spp), 
Kan. (spp), La., N. C., Okla. S2/Gam 
Tex. a 
Chickweed, big mouse-ear (Cerastium 
vulgatum). Ore. 
Chicory, wild (Cirhorium intybus). Me., 
O 
Clustered dock (Rumex conglomera- 
tus). See Dock, green. 
Cocklebur (Xanthium, spp.). U. 
Cocklebur (Xanthium commune). U.- 
(spp). 
Coco grass (Cyperus rotundus). See 
Nutgrass. 
Coffee weed (Cassia tora). Ga. 
Common plantain (Plantago major). 
See Plantain, common. 
Common ragweed (Ambrosia artemisti- — 
folia). See Ragweed, common. 
Common sowthistle (Sonchus olera- 
ceus). See Sowthistle, common. | 
Corncockle (Agrostemma githago). Ala. | 
Ark., Del., Fla., Ga., Ida., Ind., Kya 
Me., N. C., O., Okla., Ore., R. L, S. Cham 
Tenn., Vt., Wash., W. Va. 
Cowcockle (Saponaria vaccaria, Vac- — 
caria pyramidata) Cow-herb. Me., 
Ore. a 
Cow-herb (Saponaria vaccaria). See 
Cowcockle. 
Crabgrass, smooth (Digitaria ischae- 
mum). Nev., N. Y. (spp), U. 
Crabgrass (Digitaria sanguinalis), Nev., | 
N. H., N. Y. (spp), R. I. (spp). 
Creeping Jennie (Convolvulus arven- 
sis). See Bindweed, field. 
Cress, hoary (Lepidiwm draba, L., re-— 
pens). See Hoary cress. a 
Curly dock (Rumezx crispus). See Dock, 
curly. ; 
D 
Daisy fleabane (Erigeron ramosus). See | 
Fleabane, daisy. 
Daisy, oxeye (Chrysanthemum leucan- 
themum). See Oxeye daisy. 
Dandelion (Leontodon spp). Ore. i, 
Darnel (Lolium temulentum). Ala, 
Ark., Fla., Ga., La., Me., Okla., Texsg 
Deathweed (Iva axillaris). See Pover- | 
tyweed. pf | 
Devil’s paintbrush (Hieracium auran-_ 
tiacum). See Hawkweed, orange. : 
Dock, bitter (Rumex  obtusifolius). 
Broad-leaf dock. | 
Large dock. Ark., Fla., Kan. (spp), | 
La., Me., Miss. (spp), Mo. (spp), N. Y. 
(spp), O. (spp), Okla. (spp), R. I. 
(spp), Wash. (spp). 
Dock, curly (Rumex crispus) Sour dock, 
Yellow dock. Ala., Ark., Colo., Conn., | 
SEED TRADE | 

