| Preview | English name | Latin name | Czech name | Slovak name | German name | Bayer Code (EWRS) | Family | Family (Latin) |
 | annual bluegrass | Poa annua L. | Lipnice roční | Lipnica ročná | Einjähriges Rispengras | POAAN | Grass family | Poaceae |
 | Annual knawel | Scleranthus annuus L. | Chmerek roční | Sklerant ročný | Einjähriger Knäuel | SCRAN | Pink Family | Caryophyllaceae |
| Annual meadow-grass | Poa annua L. | Lipnice roční | Lipnica ročná | Einjähriges Rispengras | POAAN | Grass family | Poaceae |
 | Annual mercury | Mercurialis annua L. | Bažanka roční | Bažanka ročná | Einjähriges Bingelkraut | MERAN | Spurge family | Euphorbiaceae |
 | Annual nettle | Urtica urens L. | Kopřiva žahavka | Pŕhľava malá | Kleine Brennessel | URTUR | Nettle Family | Urticaceae |
 | Austrian chamomile | Anthemis austriaca JACQ. | Rmen rakouský | Ruman rakúsky | Österreichische Hundskamille | ANTAU | Aster Family | Asteraceae |
 | Ball-mustard | Neslia paniculata (L.) DESV. | Řepinka latnatá | Repinka metlinatá | Finkensame | NEAPA | Cabbage Family | Brassicaceae |
 | barnyard grass | Echinochloa crus-galli (L.) P.B. | Ježatka kuří noha | Ježatka kuria | Hühnerhirse | ECHCG | Grass family | Poaceae |
 | Barren brome | Bromus sterilis L. | Sveřep jalový | Stoklas jalový | Taube Trespe | BROST | Grass family | Poaceae |
 | black henbane | Hyoscyamus niger L. | Blín černý | Blen čierny | Schwarzes Bilsenkraut | HSYNI | Potato Family | Solanaceae |
 | Black nightshade | Solanum nigrum L. | Lilek černý | Ľuľok čierny | Schwarzer Nachtschatten | SOLNI | Potato Family | Solanaceae |
 | Black-bindweed | Fallopia convolvulus (L.) Á. LÖVE | Opletka obecná | Pohánkovec ovíjavý | Gemeiner Windenknöterich | POLCO | Knotweed Family | Polygonaceae |
 | Black-grass | Alopecurus myosuroides HUDS. | Psárka polní | Psiarka roľná | Acker-Fuchsschwanz | ALOMY | Grass family | Poaceae |
 | bluebottle | Centaurea cyanus L. | Chrpa modrá | Nevädza poľná | Kornblume | CENCY | Aster Family | Asteraceae |
 | Broad-leaved dock | Rumex obtusifolius L. | Šťovík tupolistý | Štiavec tupolistý | Stumpfblättriger Ampfer | RUMOB | Knotweed Family | Polygonaceae |