This is the strictest category. These plants may not occur on any land or inland water surface other than in a biological control reserve. Except for the purposes of establishing a biological control reserve, one may not plant, maintain, multiply or propagate such plants, import or sell or acquire propagating material of such plants except with the written exception of the executive officer.

Declared Weeds & Alien Invader Plants – Category 1

Acacia implexa Benth. Screw – pod wattle. Weed
Acacia longifolia (Andr.) Willd. Long – leaved wattle. Weed
Acacia paradoxa DC. Kangaroo wattle. Weed
Acacia pycnantha Benth. Golden wattle. Weed
Achyranthes aspera L. Burweed.Weed
Ageratina adenophora (Spreng.) Crofton weed. Weed
Ageratina riparia (Regel) R.M.King Mistflower. Weed
Ageratum conyzoides L. Invading ageratum. Weed
Ageratum houstonianum Mill Mexican ageratum. Weed (Excluding cultivars)
Albizia lebbeck (L.) Benth. Lebbeck tree. Weed
Albizia procera (Roxb.) Benth. False lebbeck. Weed
Alhagi maurorum Medik. Camel thorn bush. Weed
Anredera cordifolia (Ten.) Steenis Madeira vine, Bridal wreath. Weed
Araujia sericifera Brot. Moth catcher. Weed
Argemone mexicana L. Yellow-flowered Mexican poppy. Weed
Argemone ochroleuca Sweet White-flowered Mexican poppy. Weed
Arundo donax L. Giant reed, Spanish reed Weed
Azolla filiculoides Lam. Azolla, Red water fern.. Weed
Bryophyllum delagoense (Eckl.) Chandelier plant. Weed
Caesalpinia decapetala (Roth) Alston Mauritius thorn. Weed
Camputoclinium macrocephalum (Less) DC. Pom pom weed. Weed
Canna indica L. Indian shot Weed ( Excluding hybrid cultivars)
Cardiospermum grandiflorum Sw. Balloon vine. Weed
Cereus jamacaru DC. Queen of the Night. Weed
Cestrum aurantiacum Lindl. Yellow or Orange cestrum. Weed
Cestrum elegans (Brongn.) Schtdl. Crimson cestrum. Weed
Cestrum laevigatum Schtdl. Inkberry. Weed
Cestrum parqui L’Hér. Chilean cestrum. Weed
Chromolaena odorata (L.) R.M.King Triffid weed, Chromolaena. Weed
Cirsium vulgare (Savi) Ten. Spear thistle, Scotch thistle. Weed
Convolvulus arvensis L. Field bindweed, Wild morning glory. Weed
Cortaderia jubata (Lem.) Stapf Pampas grass. Weed
Cortaderia selloana (Schult.) Asch. Pampas grass. Weed (Excluding sterile cultivars)
Cuscuta campestris Yunck. Common dodder. Weed
Cuscuta suaveolens Ser. Lucerne dodder Weed
Cytisus monspessulanus L. Montpellier broom. Weed
Cytisus scoparius (L.) Link Scotch broom. Weed
Datura ferox L. Large thorn apple. Weed
Datura innoxia Mill. Downy thorn apple Weed
Datura stramonium L. Common thorn apple Weed
Echinopsis spachiana (Lem.) Fiedrich Torch cactus. Weed
Echium plantagineum L. Patterson’s curse. Weed
Echium vulgare L. Blue echium Weed
Egeria densa Planch. Dense water weed. Weed
Eichhornia crassipes (C.Mart.) Solms Water hyacinth Weed
Elodea canadensis Michx. Canadian water weed Weed
Hakea drupacea (C.F.Gaertn.) Roem. Sweet hakea Weed
Hakea gibbosa (Sm.) Cav. Rock hakea Weed
Hakea sericea Schrad. & J.C.Wendl Silky hakea Weed
Harrisia martinii (Labour.) Britton Moon cactus, Harrisia cactus Weed
Hedychium coccineum Sm. Red ginger lily Weed
Hedychium coronarium J. König White ginger lily Weed
Hedychium flavescens Roscoe Yellow ginger lily Weed
Hedychium gardnerianum Kahili ginger lily Weed
Lantana – all seedbearing forms Lantana, Tickberry, Cherry pie Weed
Lepidium draba L. Pepper – cress, Hoary candaria Weed
Leptospermum laevigatum (Gaertn.) Australian myrtle Weed
Litsea glutinosa (Lour.) C.B.Rob. Indian laurel Weed
Lythrum salicaria L. Purple loosestrife Weed
Macfadyena unguis-cati (L.) Cat’s claw creeper Weed
Montanoa hibiscifolia Benth. Tree daisy Weed
Myriophyllum aquaticum (Vell.) Verdc. Parrot’s feather Weed
Myriophyllum spicatum L. Spiked water-milfoil Weed
Nassella tenuissima (Trin.) Barkworth White tussock Weed
Nassella trichotoma (Nees) Arech. Nassella tussock Weed
Nerium oleander L. Oleander Weed (Excluding sterile, double-flowered cultivars)
Nicotiana glauca Graham Wild tobacco Weed
Opuntia aurantiaca Lindl. Jointed cactus Weed
Opuntia exaltata A.Berger Long spine cactus Weed
Opuntia ficus-indica (L.) Mill. Mission or Sweet prickly pear Weed (Excluding spineless cactus pear cultivars and selections)
Opuntia fulgida Engelm. Rosea cactus Weed
Opuntia humifusa (Raf.) Raf. Large flowered prickly pear Weed
Opuntia imbricata (Haw.) DC. Imbricate cactus or prickly pear Weed
Opuntia lindheimeri Engelm. Small round – leaved prickly pear Weed
Opuntia monacantha Haw. Drooping or Cochineal prickly pear Weed
Opuntia spinulifera Salm-Dyck Saucepan cactus Weed
Opuntia stricta (Haw.) Haw. Pest pear of Australia Weed
Orobanche minor Sm. Lesser broomrape, Clover broomrape Weed
Paraserianthes lophantha (Willi.) Australian Albizia, Stink bean Weed
Parthenium hysterophorus L. Parthenium Weed
Passiflora caerulea L. Blue passion flower Weed
Passiflora mollissima (Kunth) Banana poka, Bananadilla Weed
Passiflora suberosa L. Devil’s pumpkin, Indigo berry Weed
Passiflora subpeltata Ortega Granadina Weed
Pennisetum setaceum (Forssk.) Fountain grass Weed (Excluding sterile cultivar “Rubrum”)
Pennisetum villosum R.Br. ex Fresen. Feathertop Weed
Pereskia aculeata Mill. Barbados gooseberry Weed
Pistia stratiotes L. Water lettuce Weed
Pittosporum undulatum Vent. Australian cheesewood Weed
Psidium x durbanensis Baijnath ined. Durban guava Weed
Pueraria lobata (Willd.) Ohwi Kudzu vine Weed
Rhus succedanea L. Wax tree Weed
Rivina humilis L. Rivina, Bloodberry Weed
Rosa rubiginosa L. Eglantine, Sweetbriar Invader
Rubus cuneifolius Pursh and hybrid R. x proteus C.H.Stirt.American bramble Weed
Salvinia molesta D.S.Mitch. Kariba weed Weed (And other species of the family Salviniaceae)
Sesbania punicea (Cav.) Benth. Red sesbania Weed
Solanum elaeagnifolium Cav. Silver-leaf bitter apple Weed
Solanum mauritianum Scop. Bugweed Weed
Solanum seaforthianum Andr. Potato creeper Weed
Solanum sisymbriifolium Lam. Wild tomato Weed
Spartium junceum L. Spanish broom Weed
Tecoma stans (L.) Kunth Yellow bells Weed
Thevetia peruviana (Pers.) K.Schum. Yellow oleander Weed
Tithonia diversifolia (Hemsl.) A.Gray Mexican sunflower Weed
Tithonia rotundifolia (Mill.) S.F.Blake Red sunflower Weed
Triplaris americana L. Triplaris, Ant Tree Weed
Ulex europaeus L. European gorse Weed
Xanthium spinasum L. Spiny cocklebur Weed
Xanthium strumarium L . Large cocklebur Weed

These lists have been compiled from the information published in R.280 in the Government Gazette Vol 429: No 22166 of the 30 March 2001. R280 contains amendments to the regulations pertaining to the Conservation of Agricultural Resources Act no 43 of 1983. For more information regarding these regulations, please see the Government Gazette (available from the Government Printer: Pretoria or Cape Town).

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