| Census of Plants of the Australian Capital Territory (ACT)
          Version 4.1  (30 August 2019)Appendix 1: Vascular plants no longer considered part of the ACT flora | 
        | FAMILY | GENUS | SPECIES | INFRASPECIES | ORIGIN | NATURALISED STATUS | MOST RECENT RECORD | VOUCHER | COMMON NAME | 
| ADOXACEAE | Sambucus | nigra |  | Exotic [EA] | No longer present | 1960 | N.T.Burbidge 6837 | Common Elder | 
| AIZOACEAE | Carpobrotus | aequilaterus |  | Exotic [EA] | No longer present | 1964 | H.S.MacKee 11792 | Chilean Pigface | 
| APIACEAE | Anethum | graveolens |  | Exotic [EA] | No longer present | 1968 | N.T.Burbidge 7708 | Dill | 
| ASTERACEAE | Callistephus | chinensis |  | Exotic [EA] | No longer present | 1955 | C.W.E.Moore 3062 | Chinese Aster | 
| ASTERACEAE | Helianthus | tuberosus |  | Exotic [EA] | No longer present | 1963 | H.S.MacKee 10174 | Jerusalem Artichoke | 
| ASTERACEAE | Solidago | canadensis |  | Exotic [EA] | No longer present | 1957 | M.Gray 4100 | Goldenrod | 
| BORAGINACEAE | Myosotis | sylvatica |  | Exotic [EA] | No longer present | 1963 | E.D'Arnay 269 | Wood Forget-me-not | 
| BRASSICACEAE | Nasturtium | microphyllum |  | Exotic [EA] | No longer present | 1961 | M.Gray 4959 | Brown Watercress | 
| BRASSICACEAE | Sinapis | alba |  | Exotic [EA] | No longer present | 1960 | M.Gray 5073 | White Mustard | 
| CARYOPHYLLACEAE | Cerastium | balearicum |  | Exotic [EA] | No longer present | 1964 | H.S.MacKee 11623 | Balaeric Mouse-eared Chickweed | 
| CARYOPHYLLACEAE | Silene | nocturna |  | Exotic [EA] | No longer present | 1968 | F.C.Vasek 681027-10 | Mediterranean Catchfly | 
| CARYOPHYLLACEAE | Spergula | arvensis |  | Exotic [EA] | No longer present | 1967 | E.D'Arnay 577 | Corn Spurrey | 
| CRASSULACEAE | Sedum | praealtum | subsp. praealtum | Exotic [EA] | No longer present | 1962 | H.S.MacKee 9621 | Stonecrop | 
| CYPERACEAE | Carex | divisa |  | Exotic [EA] | No longer present | 1958 | N.T.Burbidge 6103 | Divided Sedge | 
| CYPERACEAE | Cyperus | brevifolius |  | Exotic [EA] | No longer present | 1960 | M.Gray 4871 | Mullumbimby Couch | 
| FABACEAE | Lathyrus | angulatus |  | Exotic [EA] | No longer present | 1961 | E.D'Arnay 263 | Angular Pea | 
| GERANIACEAE | Erodium | moschatum |  | Exotic [EA] | No longer present | 1967 | E.D'Arnay 141 | Musky Storksbill | 
| PAPAVERACEAE | Papaver | rhoeas |  | Exotic [EA] | No longer present | 1965 | E.D'Arnay 453 | Field Poppy | 
| PAPAVERACEAE | Romneya | coulteri |  | Exotic [EA] | No longer present | 1965 | N.T.Burbidge 7532 | Matilija Poppy | 
| PAPAVERACEAE | Romneya | trichocalyx |  | Exotic [EA] | No longer present | 1964 | K.Mowle 181 | Tree Poppy | 
| PLANTAGINACEAE | Plantago | arenaria |  | Exotic [EA] | No longer present | 1959 | M.Gray 4622 | Sand Plantain | 
| POACEAE | Agrostis | gigantea |  | Exotic [EA] | No longer present | 1961 | H.S.MacKee 8874 | Browntop Bent | 
| POACEAE | Arrhenatherum | elatius | var. bulbosum | Exotic [EA] | No longer present | 1961 | H.S.MacKee 8864 | Bulbous Oatgrass | 
| POACEAE | Bothriochloa | saccharoides |  | Exotic [EA] | No longer present | 1957 | M.Gray 4175 | Silver Bluestem | 
| POACEAE | Bromus | cebadilla |  | Exotic [EA] | No longer present | 1935 | T.G.Campbell s.n. [CANB 584474] | A redgrass | 
| POACEAE | Bromus | inermis |  | Exotic [EA] | No longer present | 1964 | H.S.MacKee 8826 | Awnless Brome | 
| POACEAE | Calamagrostis | viridiflavescens | var. montevidensis | Exotic [EA] | No longer present | 1964 | H.Doing s.n. (CANB 158567) | A small reed | 
| POACEAE | Cynosurus | cristatus |  | Exotic [EA] | No longer present | 1960 | M.Gray 4939 | Crested Dog's-tail | 
| POACEAE | Digitaria | bicornis |  | Exotic [EA] | No longer present | 1964 | R.Pullen 4023 | Southern Crabgrass | 
| POACEAE | Hordeum | hystrix |  | Exotic [EA] | No longer present | 1962 | H.S.MacKee 7538 | Mediterranean Barleygrass | 
| POACEAE | Lagurus | ovatus |  | Exotic [EA] | No longer present | 1939 | R.M.Millington s.n. [CANB 1127] | Hare's Tail Grass | 
| POACEAE | Lolium | multiflorum × Lolium rigidum |  | Exotic [EA] | No longer present | 1966 | R.Pullen 4182 | Italian × Wimmera Ryegrass | 
| POACEAE | Panicum | miliaceum |  | Exotic [EA] | No longer present | 1968 | H.S.MacKee 8947 | Millet Panic | 
| POACEAE | Phalaris | canariensis |  | Exotic [EA] | No longer present | 1965 | M.Gray 5777 | Canarygrass | 
| POACEAE | Piptatherum | miliaceum |  | Exotic [EA] | No longer present | 1965 | M.Gray 5788 | Rice Millet | 
| POACEAE | Phalaris | minor |  | Exotic [EA] | No longer present | 1964 | R.Pullen 10 | Lesser Canarygrass | 
| POACEAE | Phalaris | paradoxa |  | Exotic [EA] | No longer present | 1955 | E.Gauba s.n. [CBG 3554] | Paradoxa Grass | 
| POACEAE | Nassella | megapotamia |  | Exotic [EA] | No longer present | 1962 | R.Pullen 2492 | Short-spined Needlegrass | 
| POACEAE | Triticum | aestivum |  | Exotic [EA] | No longer present | 1968 | H.S.MacKee 7513 | Wheat | 
| POLYGONACEAE | Fagopyrum | esculentum |  | Exotic [EA] | No longer present | 1962 | M.Gray 5212 | Buckwheat | 
| SOLANACEAE | Lycium | barbarum |  | Exotic [EA] | No longer present | 1962 | I.Beeton s.n. [CBG 43786] | Chinese Boxthorn | 
| SOLANACEAE | Nicandra | physalodes |  | Exotic [EA] | No longer present | 1939 | R.Melvaine s.n. [CANB 7845] | Apple of Peru |