| Crassulaceae | |
Umbilicus affinis
| Schrenk ex Fisch. & C.A. Mey. | Enum. Pl. Nov. 1: 72 | 1841 |
| Crassulaceae | |
Umbilicus aizoon
| Fenzl | Pug. Pl. Nov. Syr. 15 | 1842 |
| Crassulaceae | |
Umbilicus alpestris
| Kar. & Kir. | Bull. Soc. Imp. Naturalistes Moscou 15: 354–355 | 1842 |
| Crassulaceae | |
Umbilicus botryoides
| A. Rich. | Tent. Fl. Abyss. 1: 308 | 1848 |
| Crassulaceae | |
Umbilicus botryoides
| Hochst. | | |
| Crassulaceae | |
Umbilicus chloranthus
| Boiss. | | |
| Crassulaceae | |
Umbilicus chrysanthus
| Boiss. & Heldr. | Diagn. Pl. Orient., ser. 1, 10: 15 | 1849 |
| Crassulaceae | |
Umbilicus cyprius
| Holmboe | Bergens Mus. Skr. 1(2): 94 | 1914 |
| Crassulaceae | |
Umbilicus elymaiticus
| Boiss. & Hausskn. | Fl. Orient. [Boiss.] 2: 770 | 1872 |
| Crassulaceae | |
Umbilicus erectus
| DC. | Fl. Franç. (ed. 3) 4: 384 | 1805 |
| Crassulaceae | |
Umbilicus erubescens
| Maxim. | Prim. Fl. Amur. 114 | 1859 |
| Crassulaceae | |
Umbilicus fimbriatus
| (Turcz.) Turcz. | | |
| Crassulaceae | |
Umbilicus gaditanus
| Boiss. | Diagn. Pl. Orient., ser. 1, 6: 58 | 1845 [1846] |
| Crassulaceae | |
Umbilicus gendjnamensis
| Stapf | Akad. Wiss. Wien, Math.-Naturwiss. Kl., Denkschr. 51: 325 | 1886 |
| Crassulaceae | |
Umbilicus glaber
| Regel & Winkler | Trudy Imp. S.-Peterburgsk. Bot. Sada 6(2): 302 | 1879 |
| Crassulaceae | |
Umbilicus globulariifolius
| Fenzl | Pug. Pl. Nov. Syr. 15 | 1842 |
| Crassulaceae | |
Umbilicus haussknechtii
| Boiss. & Reut. | Fl. Orient. [Boiss.] 2: 774 | 1872 |
| Crassulaceae | |
Umbilicus hispidus
| DC. | Prodr. 3: 399 | [1828] |
| Crassulaceae | |
Umbilicus horizontalis
| (Guss.) DC. | Prodr. 3: 400 | 1828 |
| Crassulaceae | |
Umbilicus intermedius
| Boiss. | Fl. Orient. [Boiss.] 2: 769 | 1872 |
| Crassulaceae | |
Umbilicus leucanthus
| (Ledeb.) Ledeb. | | |
| Crassulaceae | |
Umbilicus libanoticus
| (Labill.) DC. | Prodr. 3: 399 | 1828 |
| Crassulaceae | |
Umbilicus lievenii
| (Ledeb.) Ledeb. | Fl. Ross. [Ledebour] 2: 173 | 1844 |
| Crassulaceae | |
Umbilicus linearifolius
| Franch. | | |
| Crassulaceae | |
Umbilicus lineatus
| Boiss. | Diagn. Pl. Orient., ser. 1, 10: 14-15 | 1849 |
| Crassulaceae | |
Umbilicus linifolius
| Ost.-Sack. & Rupr. | | |
| Crassulaceae | |
Umbilicus malacophyllus
| (Pall.) DC. | | |
| Crassulaceae | |
Umbilicus mexicanus
| Schltdl. | Linnaea 13: 409 | 1839 |
| Crassulaceae | |
Umbilicus multicaulis
| Boiss. & Buhse | Nouv. Mém. Soc. Imp. Naturalistes Moscou 12: 93 | 1860 |
| Crassulaceae | |
Umbilicus oppositifolius
| Ledeb. | | |
| Crassulaceae | |
Umbilicus oreades
| Decne. | Voy. Inde 4(Bot.): 62 | 1844 |
| Crassulaceae | |
Umbilicus oxypetalus
| Boiss. | Diagn. Pl. Orient., ser. 1, 3: 15 | 1843 |
| Crassulaceae | |
Umbilicus pallidiflorus
| Holmboe | Bergens Mus. Skr. 1(2): 95, f. 27: c–d, 28 | 1914 |
| Crassulaceae | |
Umbilicus pallidus
| Schott & Kotschy | Osterreich. Bot. Wochenbl. 7(29): 229–230 | 1857 |
| Crassulaceae | |
Umbilicus paniculatus
| E. Regel & Schmalhausen | Trudy Imp. S.-Peterburgsk. Bot. Sada 5(2): 583 | 1878 |
| Crassulaceae | |
Umbilicus papillosa
| (Aitch. & Hemsl. ex Aitch.) Boiss. | Fl. Orient. [Boiss.] 244 | 1888 |
| Crassulaceae | |
Umbilicus parviflorus
| DC. | Prodr. 3: 400 | [1828] |
| Crassulaceae | |
Umbilicus pendulinus
| DC. | | |
| Crassulaceae | |
Umbilicus persicus
| Boiss. | Diagn. Pl. Orient., ser. 1, 3: 14 | 1843 |
| Crassulaceae | |
Umbilicus pestalozzae
| Boiss. | Fl. Orient. [Boiss.] 2: 771 | 1872 |
| Crassulaceae | * |
Umbilicus platyphyllus
| E. Regel & Herder | | 1866 |
| Crassulaceae | |
Umbilicus platyphyllus
| Schrenk ex Fisch. & C.A. Mey. | Enum. Pl. Nov. 1: 71 | 1841 |
| Crassulaceae | * |
Umbilicus platyphyllus
| Boiss. | Fl. Orient. [Boiss.] 2: 773 | 1872 |
| Crassulaceae | |
Umbilicus pulvinatus
| Rupr. | Mém. Acad. Imp. Sci. Saint Pétersbourg, Sér. 7 14(4): 47 | 1869 |
| Crassulaceae | ** |
Umbilicus racemosus
| Freyn | Bull. Herb. Boissier, sér. 2, 6(3): 212 | 1906 |
| Crassulaceae | |
Umbilicus radicans
| Klotzsch in Klotzsch & Garcke | Bot. Ergebn. Reise Waldemar 143, t. 44 | 1862 |
| Crassulaceae | ** |
Umbilicus radiciflorus
| Steud. ex Boiss. | Fl. Orient. [Boiss.] 2: 772 | 1872 |
| Crassulaceae | |
Umbilicus ramosissimus
| Maxim. | | |
| Crassulaceae | |
Umbilicus rupestris
| Dandy | | |
| Crassulaceae | |
Umbilicus samium
| (D'Urville) DC. | Prodr. 3: 399 | 1828 |
| Crassulaceae | |
Umbilicus semenovii
| Regel & Herder | Bull. Soc. Imp. Naturalistes Moscou 39: 65 | 1866 |
| Crassulaceae | |
Umbilicus semiensis
| J. Gay ex A. Richard | Tent. Fl. Abyss. 1: 308 | 1847 |
| Crassulaceae | |
Umbilicus sempervivum
| (M. Bieb.) DC. | Prodr. 3: 399 | 1828 |
| Crassulaceae | |
Umbilicus serpentinicus
| Werderm. | Notizbl. Bot. Gart. Berlin-Dahlem 14(124): 370 | 1939 |
| Crassulaceae | |
Umbilicus serratus
| (L.) DC. | Bull. Sci. Soc. Philom. Paris 3(49): [1] | 1801 |
| Crassulaceae | |
Umbilicus spathulatus
| Hook. f. & Thomson | J. Proc. Linn. Soc., Bot. 2: 92 | 1858 [`857] |
| Crassulaceae | |
Umbilicus spinosus
| DC. | Prodr. 3: 400 | 1828 |
| Crassulaceae | |
Umbilicus subspicatus
| Freyn | Bull. Herb. Boissier, sér. 2, 6(3): 211 | 1906 |
| Crassulaceae | |
Umbilicus subulatus
| (C.A. Mey.) Ledeb. | Fl. Ross. [Ledebour] 2: 173 | 1843 |
| Crassulaceae | |
Umbilicus tenuicaulis
| (Aitch. & Hemsl. ex Aitch.) Boiss. | Fl. Orient. [Boiss.] 244 | 1888 |
| Crassulaceae | |
Umbilicus thyrsiflorus
| (Fisch.) DC. | Prodr. 3: 400 | 1828 |
| Crassulaceae | |
Umbilicus tropaeolifolius
| Boiss. | Diagn. Pl. Orient., ser. 1, 3: 14 | 1843 |
| Crassulaceae | |
Umbilicus turkestanicus
| Regel & Winkler | Trudy Imp. S.-Peterburgsk. Bot. Sada 6(2): 301 | 1879 |
| Crassulaceae | |
Umbilicus vulgaris
| Batt. & Trab. | Fl. Algérie Tunisie 133 | |
| Crassulaceae | |
Umbilicus winkleri
| Willk. | Ber. Deutsch. Bot. Ges. 1: 268 | 1883 |