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. 
Listed under the 
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 ihe State Seed Laws (see page 106 and following). 
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). 
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., 
Colo. 
Bassia, five-hook (Bassia hyssopifolia). 
Cal., Nev. 
Bearded darnell (Lolium temulentum). 
See Darnell, bearded. 
Bermuda grass (Cynodon dactylon, Ca- 
priola dactylon) Wire grass. Ala., 
Fla., Ga., La., Md., Miss., Okla., Tex., 
OL, Weis IDL-C. 
Big mouse-ear (Ceérastium vulgatum). 
See Chickweed, big mouse-ear. 
Bindweed, field (Convolvulus arvensis) 
Creeping Jennie, Morning-glory, Tie- 
vine, Wild morning-glory. Ala., Ariz., 
Ark., Cal., Colo., Ga. (spp), Ida., Ill, 
Ind., Ia., Kan., La., Me., Md., Mich., 
Minn., Miss., Mo., Mont., Neb., Nev., 
N. C., N. Dak., Okla., Ore., Pa. (spp), 
S. Dak., Tex. (spp), U., Wash., Wis., 
Wyo., D. C. 
Bindweed, hedge (Convolvulus sepium) 
Wild morning-glory. Ark., Ga. (spp), 
Ida., Okla., Pa. (spp), S. Dak., Tex. 
(spp), Wash. ~ 
Bitter dock (Rumex 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- 
gelii). See Plantain, black seeded. 
Bladder campion (Silene latifolia). See 
Campion, bladder. 
Blue bur (Lappula echinata). See Stick- 
seed. 
Blue flowering lettuce (Lactuca pul- 
64 
Compiled by 
ee LA PINE 
Commercial Seed Analyst 
chella). See Lettuce, blue flowering. 
Blue sunflower (Helianthus ciliaris). 
See Blueweed. Texas. 
Blueweed (Echium vulgare). Me., Okla. 
Blueweed, Texas (Helianthus ciliaris) 
Blue sunflower. Ariz., Cal., 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. (spp), Conn. (spp), 
Gate (spp) idan. Ulead alae ara 
Ky., Me., Mass., Minn., Miss. (spp), 
Mo. (spp), O. (spp), Okla., Ore., R. L., 
Tex., U., Wash. (spp), W. Va., Wis. 
Buckwheat, wild (Polygonum convol- 
vulus). Okla. 
Buffalo bur (Solanum rostratum). Nev., 
Okla. 
Bull nettle (Solanum carolinense). See 
Horse nettle. 
Bullthistle (Cirsium lanceolatum). U. 
Burdock, great (Arctium lappa). U. 
Burdock, smaller (Arctium minus). U. 
Bur grass (Cenchrus pauciflorus). See 
Sand bur. 
Burnweed, Australian (Erechtites pre- 
nanthoides) Fireweed. Ore. 
Butterprint (Abutilon theophrasti). Ia. 
C 
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). Ala., Ariz., Cal., Colo., 
Conn., Del., Fla., Ga., Ida., Ill, Ind., 
Ia., Kan., Ky., Me., Md., Mass., Mich., 
Minn., Mo., Mont., Neb., Nev., N. J., 
N Yo Nee Dak, ©) Okla, Ore. ba. 
Rela. Cos, Dake Lenn Ulivi. Van 
Wash., W. Va., Wis., Wyo.. D. C. 
Carrot, wild (Daucus carota). IIl., Ind., 
Ia.. Kan., Me., Mich., Mo., O., R. L., 
S: Dak., W. Va. 
Catchfly, night-flowering (Silene nocti- 
flora). Me. 
Cats-ear, spotted (Hypochaeris radi- 
cata). Ore. 
Charlock (Brassica arvensis). See Mus- 
tard, wild. 
eae (Bromus secalinus, B. comnu- 
tatus). Ala., Ark., Colo., Ga. (spp), 
Kan. (spp), N. C., Okla., S. C., Tex. 
Chickweed, big mouse-ear (Cerastium 
vulgatum). Ore. 
Chicory, wild (Cirhorium intybus). Me., 
Clustered dock (Rumex conglomera- 
tus). See Dock, green. 
Cocklebur (Xanthiwm canadense). La. 
Cocklebur (Xanthium commune). Ia. 
Cocklebur (Xanthiwm orientale). U. 
Coco grass (Cyperus rotundus). See 
Nutgrass. 
Coffee weed (Cassia tora). Ga. 
Common plantain (Plantago major). 
See Plantain, common. 
Common ragweed (Ambrosia artemisii- 
folia). See Ragweed, common. 
Common sowthistle (Sonchus olera- 
ceus). See Sowthistle, common. 
Corncockle (Agrostemma githago). Ala., 
Ark., Colo., Fla., Ga., Ida., Ind., Kan., 
Ky., Me., N. C., O., Okla., Ore., R. L., 
Ss. C., Tenn., Vt., Wash., W. Va. 
Cowcockle (Saponaria vaccaria, Vac- 
caria pyramidata) Cow-herb. Colo., 
Me., Ore. 
Cow-herb (Saponaria vaccaria). See 
Cowcockle. 
Crabgrass, smooth (Digitaria ischae- 
mum). Cal., Colo., Nev., N. Y. (spp). 
Crabgrass (Digitaria sanguinalis). Cal., 
Colo., La., Nev., N. Y. (spp), R. I. 
(spp). 
Creeping Jennie (Convolvulus arven- 
sis). See Bindweed, field. 
Cress, hoary (Lepidiwm draba, L. re- 
pens). See Hoary cress. 
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. 
Dandelion, false (Pyrrhopappus caro- 
linianus). La. 
Darnel (Lolium temulentum). Ala., 
Ark., Ga., Me., Tex. 
Deathweed (Iva axillaris). See Pover- 
tyweed. 
Devil’s paintbrush (Hieracium auran- 
tiacum). See Hawkweed, orange. 
Dock, bitter (Rumex  obtusifolius). 
Large dock. Ala., Ark., Kan. (spp), 
La., Me., Miss. (spp), Mo. (spp), N. Y. 
(spp), O. (spp), R. I. (spp), Wash. 
(spp). 
Dock, curly (Rumezx crispus) Sour dock, 
Yellow dock. Ala., Ark., Conn., IIL, 
Ind., Ia., Kan. (spp), Me., Miss. (spp), 
Mo. (spp), N. Y. (spp), O. (spp), 
Okla., R. I. (spp), Tex., Wash. (spp). 
Dock, green (Rumex conglomeratus) 
Clustered dock. Ark., Kan. (spp), 
Me., Miss. (spp), Mo. (spp), N. Y. 
(spp), O. (spp), R. I. (spp), Wash. 
(spp). 
SEED TRADE 


