Serbia

Common Yellow Oxalis

Oxalis stricta

white bryony

Bryonia dioica

Wild cucumber

Echinocystis lobata

Garden Anchusa

Anchusa azurea

Asiatic Dayflower

Commelina communis

Dudley'S Rush

Juncus tenuis

Nuttall's waterweed

Elodea nuttallii

Bastard Indigo

Amorpha fruticosa

Angel'S Trumpet

Datura innoxia

Horseradish

Armoracia rusticana

Shortpod mustard

Hirschfeldia incana

Stag'S-Horn Sumach

Rhus typhina

Sosnowsky's hogweed

Heracleum sosnowskyi

Black Cherry

Prunus serotina

Bohemian Knotweed

Reynoutria bohemica

Elephant-Ear

Reynoutria sachalinensis

Yellow Star-thistle

Centaurea solstitialis

Manchu tubergourd

Thladiantha dubia

Angled Burr Cucumber

Sicyos angulatus

Pride-of-India

Koelreuteria paniculata

Tape grass

Vallisneria spiralis

Beanpodded Mustard

Chorispora tenella

Fleeceflower

Reynoutria japonica

American Ash

Fraxinus americana

Annual Ragweed

Ambrosia artemisiifolia

Alecost

Tanacetum balsamita

Connate Beggarticks

Bidens connata

Confused Michaelmas Daisy

Symphyotrichum novi-belgii

Oakes' evening-primrose

Oenothera oakesiana

Balfour'S Jewelweed

Impatiens balfourii

Mintweed

Salvia reflexa

Silverleaf nightshade

Solanum elaeagnifolium

Blotched Spurge

Euphorbia maculata

European Bur-grass

Tragus racemosus

Prostrate pigweed

Amaranthus albus

Chinese Elm

Ulmus pumila

White Broom

Cytisus multiflorus

Firewheel

Gaillardia pulchella

Mountain ironwort

Sideritis montana

Wandering vetch

Vicia peregrina

Pale Sunflower

Helianthus decapetalus

late Michaelmas daisy

Symphyotrichum versicolor

Eastern Line Aster

Symphyotrichum lanceolatum

Laxman’s bulrush

Typha laxmannii

Wild bishop

Bifora radians

Common Michaelmas Daisy

Symphyotrichum salignum

Eyebane

Euphorbia nutans

soldier thistle

Picnomon acarna

Cone-Spur Bladderwort

Utricularia gibba

Carolina mosquitofern

Azolla caroliniana

Creeping Prickly-Pear

Opuntia humifusa

False Flatsedge

Cyperus strigosus

Annual Fleabane

Erigeron annuus

rock grape

Vitis rupestris

Dutch elm disease

Ophiostoma novo-ulmi

Cyanobacterium

Cylindrospermopsis raciborskii

Raphidiopsis mediterranea

Sphaerospermopsis aphanizomenoides

Essex Skipper

Thymelicus lineola

small skipper

Thymelicus sylvestris