Saxifragales
Family: Altingiaceae
–No subordinate taxa
Family: Aphanopetalaceae
–No subordinate taxa
Family: Cercidiphyllaceae
–No subordinate taxa
Family: Crassulaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Aeonium × mascaense | Bramwell (1984 "1982") | - | 1969 | Tenerife, Canary Islands, North Africa | Extinct in the Wild | Access |
| Crassula alcicornis | Schönland (1917) | Antler-leafed crassula | (rediscovered) | Clanwilliam District, South Africa | Rediscovered | Access |
| Crassula subulata hispida | Tölken (1975) | Montagu Bihair stonecrop | (rediscovered) | near Montague Bath, Western Cape Province, South Africa | Rediscovered | Access |
|
Dudleya traskiae |
(Rose) Moran (1942) | Santa Barbara Island liveforever | (rediscovered) | Santa Barbara Island, Channel Islands, California, USA | Rediscovered | Access |
| Echeveria laui | Moran & J.Meyrán (1976) | - | ? | Oaxaca, Mexico | Extinct in the Wild | Access |
| Echeveria tobarensis | (Rose) A.Berger (1930) | - | (rediscovered) | near Tova (=Toba), Durango, Mexico | Rediscovered | Access |
| Graptopetalum bellum | (Moran & J.Meyrán) D.R.Hunt (1979) | Chihuahua flower | ? | Sierra Obscura, Chihuahua, Sonora State, Mexico | Extinct in the Wild | Access |
| Hylotelephium sieboldii ettyuense | (Tomida) H.Ohba (1981) | - | (rediscovered) | Toyama Prefecture, Japan | Extinct in the Wild or Rediscovered in the Wild | Access |
| Kalanchoe angustifolia | A.Rich. (1848) | - | ? | Ethiopia | Invalid (synonym) | Access |
| Kalanchoe dinklagei | Rauh (1985) | - | (rediscovered) | Madagascar | Rediscovered | Access |
| Kalanchoe fadeniorum | Raadts (1979) | - | 1977 | southern Kenya | Extinct in the Wild | Access |
| Sedum pinetorum | Brandegee (1916) | Pine city sedum | (rediscovered) | California, USA | Invalid (synonym) | Access |
| Sedum polystriatum | R.T.Clausen (1946) | - | (rediscovered) | Anatolia, Turkey | Rediscovered | Access |
Family: Cynomoriaceae
–No subordinate taxa
Family: Daphniphyllaceae
–No subordinate taxa
Family: Grossulariaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
|
Ribes albifolium |
Ruiz & Pav. (1802) | - | 1778-1788 | Peru | Missing | Access |
| Ribes divaricatum parishii | (A.Heller) Jeps. (1935) | Straggly gooseberry | 1963 or 1980 | California, USA | Extinct | Access |
| Ribes nigrum kolymense |
Trautv. (1878)
|
- | ? | Russia | Extinct | Access |
Family: Haloragaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Glischrocaryon lucasii | (Maiden & Betche) Christenh. & Byng (2018) | Hal | (rediscovered) | New South Wales, Australia | Rediscovered | Access |
|
Gonocarpus intricatus
|
(Benth.) Orch. (1975) | - | (rediscovered) | Western Australia, Australia | Rediscovered | Access |
| Gonocarpus pycnostachyus | (F.Muell.) Orch. (1975) | - | (rediscovered) | Western Australia, Australia | Rediscovered | Access |
| Haloragis platycarpa | Benth. (1864) | Broad-fruited haloragis | (rediscovered) | Western Australia, Australia | Rediscovered | Access |
| Haloragis scoparia | Fenzl (1837) | - | pre-1890 | Western Australia, Australia | Missing | Access |
| Haloragis stricta | R.Br. ex Benth. (1864) | - | (rediscovered) | New South Wales & Queensland, Australia | Rediscovered | Access |
|
Laurembergia minor |
(C.B.Clarke) Philcox (1999) | - | ? | Sri Lanka | Missing or Extinct | Access |
|
Meionectes tenuifolia |
(Benth.) M.L.Moody & Les (2007) | - | (rediscovered) | Western Australia, Australia | Rediscovered | Access |
| Myriophyllum axilliflorum | Baker (1884) | - | 1928 | Madagascar | Missing | Access |
| Myriophyllum sparsiflorum | C.Wright (1869) | - | ? | Cuba | Extinct | Access |
| Myriophyllum trifidum | (Nees) M.L.Moody & D.H.Les (2010) | Three-lobed meziella | (rediscovered) | Western Australia (southwest), Australia | Rediscovered | Access |
Family: Hamamelidaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Maingaya malayana | Oliv. (1873) | - | (rediscovered) | Malaysia | Rediscovered | Access |
| Parrotia subaequalis | (Hung T.Chang) R.M.Hao & H.T.Wei (1998) | Chinese ironwood | (rediscovered) | China | Rediscovered | Access |
Family: Iteaceae
–No subordinate taxa
Family: Paeoniaceae
–No subordinate taxa
Family: Penthoraceae
–No subordinate taxa
Family: Peridiscaceae
–No subordinate taxa
Family: Saxifragaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Astilbe crenatiloba | (Britton) Small (1905) | Roan Mountain false goat’s beard | 1888 | North Carolina and Tennessee, USA | Extinct | Access |
| Lithophragma maximum | Bacig. (1963) | San Clemente Island woodland(-)star | (rediscovered) | San Clemente Island, Channel Islands, California, USA | Rediscovered | Access |
| Mitella prostrata | Michx. (1803) | Creeping bishop's cap | ? | northeastern USA | Invalid (synonym) | Access |
|
Saxifraga duthiei
|
Gand (1899) | - | ? | Pakistan | Missing | Access |
| Saxifraga oppositifolia amphibia | Sünd. (1909) | Lake Constance saxifrage | 1960's | Austria, Germany & Switzerland | Extinct | Access |
Family: Tetracarpaeaceae
–No subordinate taxa