- Crassula closiana, Stalked Crassula;Tillaea closiana Gay;Tillaea macrantha var pedicellosa FMuell;Tillaea pedicellosa FMuell FMuell;Crassula pedicellosa FMuell Ostenf
- Crassula exserta, Large-fruit Crassula;Tillaea exserta Reader;Crassula sieberiana var exserta Reader Domin;Crassula sieberana var exserta orth var Domin sensu Domin, K 1926
- Crassula helmsii, Swamp Stonecrop;Swamp Crassula;Tillaea helmsii Kirk;Bulliarda recurva Hookf;Crassula recurva Hookf Ostenf;Tillaea recurva Hookf Hookf;New Zealand Pigmyweed;Crassula recurva (Hookf) Ostenf non NE Br;Tillaea recurva (Hook f) Hook f
- Crassula peduncularis, Purple Crassula;Purple Stonecrop;Tillaea peduncularis Sm;Tillaea purpurata Hookf;Crassula purpurata Hookf Domin;Crassula bonariensis Cambess;Crassula pedicellosa FMuell Ostenf;Purple Pigmyweed
- Crassula sieberiana, Australian Stonecrop;Sieber Crassula;Silver Crassula;Austral Crassula;Austral Stonecrop;Australian Crassula;Tillaea sieberiana Schult & Schultf;Tillaea sieberiana Schult & Schultf var sieberiana;Bulliarda sieberi Spreng;Bulliarda sieberii orth var Spreng sensu Sprengel, CPJ 1827;Australian Pigmyweed;Siberian Pygmyweed;Siberian pygmyweed
- Jungermannia crassula, Jamesoniella nana;Jungermannia domeikoana;Jungermannia simplicissima;Solenostoma crassula;Solenostoma obtusiflorum;Solenostoma rostratum
- Nardia insecta, Alicularia geoscypha var insecta;Nardia crassula;Nardia geoscyphus subsp insecta;Nardia geoscyphus var insecta
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