8 
Table of proscribed weeds. 
Note.—Thke asterisks (*) indicate that the weeds opposite the names of which they are placed are 
proscribed by the laws of the State named at the head of the column. The approved common name 
is given first. The common names in quotations are used in some of the laws. The technical names 
of the weeds that are evidently intended to be proscribed are given, although other technical names 
are used in some of the laws, for which see footnotes on pages 22, 28, 30, 41, and 58. 
| Bee ieee ee 
| ae | slg | II 
8 | st [Sl | bShsi lala 
= = Z | | | Pa fc [ee 5 x id | =H Ee ° . 
slaisis ls] | SISISSEISIEIS| | EIS H/eElS 
sle(eiSialS) jaoisijaizis@PmiT! lg eB risiebia 
SlSlPiElolgl s/SiEslslSiois iF la] .lS/2lq/Slsi/8 
NIS|SlelslalS AZ SiS sl2 Slelelelelw ele slalale 
HS SSSSIES SSSR Breioislsreles SSS lem 
qo SRR ARMM RA AAA RES Soar rrr 
Bocee BeceGpe ce Seeee tis 
Braers (species indefinite) - .< ...5o5ec- =o eee eel ee eeaeeeet eet By ae [oe 
Brush (species indefinite) Be oe eee he (ee eg Ie ee ES Bes floes Oise (a DO fe Fac ce = [ee ICs a fiooree 
Bull thistle, ‘‘Common thistle,” Car- | | a 
duus lanceolatus.. Ba Sed eet (eek eee 1s eS (ey test tte be 2s ss ey aes ed es IS ey ee as ee a os 
Burdock, ae lappa... Ses ae ey ee! fea BA faye Pes fs PG oy Rape LEST BO eS ad a eel 
Bur grass, “‘Rocky Mountain sand oka | Be ee a | 
spur, (Conch Tibuloides By areeg ik [ead fe ( WE es EE fre ages fed (ea ee LS VS Wes FS Fe Fe oe tee a ee 
Burs (species indefinite)..-........ See st eas ford ee 1 4p Bs Fe fa Nes a ee ae ea pe 
Canada thistle, Carduus arvensis.......... SAS es eed a ee te et ed ae 
Charlock, ‘‘ Wild mustard,” Brassica | ee Ms aa es Fei Vie fea | | 
SAL DESET UTE = So ee tee ee see eee ead PS, ee gel ae De Aes baer Pee 
Cocklebur, Xanthium canadense..-..--- te le Pas Pees apo ees ea Aba 6 : 
Couch grass, ‘‘ Quack grass,” Agropyron | | | | | be 
PEGI TES oa a ae Se ee a VS De ees es Be ee fo aS ee eee eee 
Curled dock, ‘‘Sour dock,” ‘‘ Yellow ealced | Te Wis ts | 
dock,” Rumez crispus....-..-......---|--|--|--|--| ASA Fes ES tS See mee es de ES 
Dock, Lumez (species indefinite) -.-----|-.|..|.-|..].-]* |--].-]--|--].-|-- ja] epee) | Fae (a (ee 
Milkweed, Asclepias syriaca........----|.. a fae) (E (BS ee Pee ee ees a iets bea BB Bs ee be 
Noxious weeds (species indefinite). .....|. ||] *1* |] |...) *)* Hen de By eee fod se 
Ox-eye daisy, ‘‘ White daisy,” Chrysan- | | faa ee as e | 
themum leucanthemum -....-.--------- Peesieate: Ss fas FOS na (es fee fl fez Gm, pe Pee om Be FS be Soe See 
Penny cress, ‘‘French weed,” Thlaspi | (el | | 
rove: s! (.UP oS Ss S yale eee Wy ea es Be lea ee * Fee Bs ey ine Bes pe (PS ba 
Ramsted, ‘‘Snapdragon,” ‘‘Toad fax,” | | | | | Ree, 
TANGTIDUNGTUG 25-25 soos oss eee ae ES eS Se ee ee ieee = Ba es Bed ees ee i bee Fae ee 
Russian thistle, ‘‘ Russian cactus,” Sal- |" | | era Beal | 
SOU KOM {7 OGUS = 2 == aon = wee eee EEE at ees be ae = i (S| Prey fe FPS Fes Fl pe Bake 
Sow thistle, Sonchus arvensis... -- Ee ah) st es (Os ee ee le * SBS es Be (es ee Sa 
Spiny cocklebur, “Dagger cocklebur,” Wed a el 
“Chinese thistle,’ Xanthium spinosum|..|..|..|..|..|--|--|--|--|--]--|--|--[-=[--[+=|--[--{ * [e-{-<[--1 ® [--l-- 
Sunflower, Helianthus annuus .......--- Is 4 fas pa Se Be ap OO fee fs Fs Pk SV ky oe 
Siect clover, Mellons athe. 22.22 3..- 22 {ete | Sie a Se a fet se da 
Teasel, Dipsacus sylvestris -.----.--.----- es Few Fes ( Pe PRS ee Fs Oe Bea ee aS ae Be 
Thistles. Carduus (species indefinite) ---).-)-.).. --|-- col a fee (eee FON Je ee fe Oe Wis fee Be IE 
Tumble mustard, Sisymbrium altissi- | | om eo at 
TIT oe ce ee LE SC eee eee ee de ae ae we BS Fes Bos | * u | GS (> 2]eets --|+- 
Wild carrot, Daucus xarota..........----|--}-- SY ale I ad ones Bd ae eg Se ed a Sala lal ooteatee 
Wild oats, Avena fatua......-.....---.- Fae Nee i tee a Pe a fed Ps el es at Pes ey ee Ped bo A ee pee ae Pk 2 
Wild parsnip, Pastinaca sativa.-......---|..|..|..|..|.- 25 al We te > se Be ee 
Yellow daisy, Rudbeckia hirta.-+--++-+--)-- Bey tee fe ete soe ae fi re et Peak ae foes BS 
H | ie 
It will be noticed that twenty-one of the twenty-five States here 
represented have proscribed what they name the Canada thistle, but 
as a matter of fact the Canada thistle is by no means so trouble- 
some in all regions as this would indicate. In some cases it is possible 
that another thistle is meant, while in a few cases it was proscribed 
evidently becatise of its established reputation in some of the older 
States. In two of the States sweet clover is proscribed. This plantis 
seldom very troublesome as a weed, and on certain soils it has been 
found to be valuable as a forage plant and soil renovator. 
None of the Southern States, where the nut sedge, giant ragweed, 
and wild onion are most serious pests, have passed any laws against 
weeds. The States of the Rocky Mountain region and Great Basin 
