| Asteraceae | |
Youngia acaulis
| (Roxb.) DC. | Prodr. 7: 193 | 1838 |
| Asteraceae | |
Youngia afghanica
| Podlech | Mitt. Bot. Staatssamml. München 8: 186, 14 | 1970 |
| Asteraceae | |
Youngia akagii
| (Kitag.) Kitag. | J. Jap. Bot. 16(3): 182 | 1940 |
| Asteraceae | |
Youngia alaica
| (Krasch.) Kamelin | Opred. Rast. Srednei Azii 10: 140 | 1993 |
| Asteraceae | |
Youngia alashanica
| H.C. Fu | Fl. Intramongol. (ed. 2) 4: 849 | 1993 |
| Asteraceae | |
Youngia altaica
| Czerep. | Fl. SSSR 29: 383 | 1964 |
| Asteraceae | |
Youngia ambigua
| DC. | Prodr. 7(1): 193 | 1838 |
| Asteraceae | |
Youngia americana
| Babc. | Madroño 11: 1, f. 1 & 2 | 1951 |
| Asteraceae | |
Youngia aspera
| (Poir.) Steud. | Nomencl. Bot. (ed. 2) 2: 393, in syn. | 1841 |
| Asteraceae | ! |
Youngia atripappa
| (Babc.) N. Kilian | Fl. China 20–21: 254 | 2011 |
| Asteraceae | ! |
Youngia bifurcata
| Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 89 | 1937 |
| Asteraceae | |
Youngia blinii
| (H. Lév.) Lauener | Notes Roy. Bot. Gard. Edinburgh 34(3): 388 | 1976 |
| Asteraceae | |
Youngia chelidonifolia
| (Makino) Kitam. | Acta Phytotax. Geobot. 11(2): 128 | 1942 |
| Asteraceae | |
Youngia chinensis
| (Thunb.) DC. | Prodr. 7: 194 | 1838 |
| Asteraceae | |
Youngia chrysantha
| Maxim. | Prim. Fl. Amur. 181 | 1859 |
| Asteraceae | ! |
Youngia cineripappa
| (Babc.) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 60 | 1937 |
| Asteraceae | ! |
Youngia conjunctiva
| Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 37 | 1937 |
| Asteraceae | ! |
Youngia cristata
| C. Shih & C.Q. Cai | Acta Phytotax. Sin. 33(2): 186–187 | 1995 |
| Asteraceae | |
Youngia cyanea
| S.W. Liu & T.N. Ho | Acta Phytotax. Sin. 39(6): 554–556, f. 1(4–6) | 2001 |
| Asteraceae | |
Youngia debilis
| (Thunb.) DC. | Prodr. 7: 194 | 1838 |
| Asteraceae | |
Youngia dentata
| (Thunb.) DC. | Prodr. 7: 193 | 1838 |
| Asteraceae | |
Youngia denticulata
| (Houtt.) Kitam. | Acta Phytotax. Geobot. 11(2): 128 | 1942 |
| Asteraceae | |
Youngia depressa
| (Hook. f. & Thomson) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 33 | 1937 |
| Asteraceae | |
Youngia diversifolia
| (Ledeb. ex Spreng.) Ledeb. | Fl. Ross. [Ledebour] 2: 837 | 1845 |
| Asteraceae | |
Youngia elegans
| (Hook.) Rydb. | Fl. Rocky Mts. 1069 | 1917 |
| Asteraceae | ! |
Youngia erythrocarpa
| (Vaniot) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 102 | 1937 |
| Asteraceae | |
Youngia fastigiata
| (Blume) DC. | Prodr. 7(1): 193 | 1838 |
| Asteraceae | |
Youngia flexuosa
| (Ledeb.) Ledeb. | Fl. Ross. [Ledebour] 2: 838 | 1845 |
| Asteraceae | |
Youngia formosana
| (Hayata) H. Hara | J. Jap. Bot. 14(1): 53 | 1938 |
| Asteraceae | |
Youngia fusca
| (Babc.) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 76 | 1937 |
| Asteraceae | |
Youngia fuscipappa
| Thwaites | Enum. Pl. Zeyl. 168 | 1860 |
| Asteraceae | |
Youngia glauca
| Edgew. | Trans. Linn. Soc. London, Bot. 20: 79 | 1851 [1846] |
| Asteraceae | ! |
Youngia gracilipes
| (Hook. f.) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 40 | 1937 |
| Asteraceae | ** |
Youngia gracilis
| Hook. f. | Gen. Pl. 2: 514 | 1873 |
| Asteraceae | |
Youngia gracilis
| (Hook. f. & Thomson ex C.B. Clarke) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 67 | 1937 |
| Asteraceae | |
Youngia gracilis
| Miq. | J. Bot. Neerl. 1: 106 | 1861 |
| Asteraceae | |
Youngia hastata
| (Thunb.) DC. | Prodr. 7: 194 | 1838 |
| Asteraceae | ! |
Youngia hastiformis
| C. Shih | Acta Phytotax. Sin. 33(2): 185–186, pl. 2, f. 1 | 1995 |
| Asteraceae | ! |
Youngia henryi
| (Diels) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 83 | 1937 |
| Asteraceae | ! |
Youngia heterophylla
| (Hemsl.) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 87 | 1937 |
| Asteraceae | |
Youngia hondae
| Kitam. | Acta Phytotax. Geobot. 19(6-Apr): 106 | 1963 |
| Asteraceae | |
Youngia humilis
| (Thunb.) DC. | Prodr. 7: 194 | 1838 |
| Asteraceae | |
Youngia integra
| (Thunb.) A. Gray | Mem. Amer. Acad. Arts, n.s. 6(2): 396 | 1858 |
| Asteraceae | ! |
Youngia japonica
| (L.) DC. | Prodr. 7(1): 194 | 1838 |
| Asteraceae | |
Youngia jiulongensis
| Y.L. Peng, X.F. Gao & Li Bing Zhang | Novon 25(3): 298–300, fig. 1 | 2017 |
| Asteraceae | ! |
Youngia kangdingensis
| C. Shih | Acta Phytotax. Sin. 33(2): 186 | 1995 |
| Asteraceae | |
Youngia karelinii
| (Popov & Schischk. ex Czerep.) Kamelin | Opred. Rast. Srednei Azii 10: 141 | 1993 |
| Asteraceae | |
Youngia koidzumiana
| Kitam. | Acta Phytotax. Geobot. 11: 127 | 1942 |
| Asteraceae | |
Youngia lactea
| (Lipsch.) Kamelin | Opred. Rast. Srednei Azii 10: 141 | 1933 |
| Asteraceae | ! |
Youngia lanata
| Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 74 | 1937 |
| Asteraceae | |
Youngia lanceolata
| (Houtt.) DC. | Prodr. 7: 193 | 1838 |
| Asteraceae | |
Youngia longiflora
| (Babc. & Stebbins) C. Shih | Fl. Reipubl. Popularis Sin. 80(1): 150, pl. 36, f. 1 | 1997 |
| Asteraceae | ! |
Youngia longipes
| (Hemsl.) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 92 | 1937 |
| Asteraceae | |
Youngia lyrata
| Cass. | Ann. Sci. Nat. (Paris) 23: 88 | 1831 |
| Asteraceae | ! |
Youngia mairei
| (H. Lév.) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 77 | 1937 |
| Asteraceae | * |
Youngia mauritiana
| DC. | Prodr. 7: 192 | 1838 |
| Asteraceae | |
Youngia multiflora
| (Thunb.) DC. | Prodr. 7: 194 | 1838 |
| Asteraceae | |
Youngia nana
| (Richardson) Rydb. | Fl. Rocky Mts. 1069 | 1917 |
| Asteraceae | |
Youngia nansiensis
| Y.Z. Zhao & L. Ma | Bull. Bot. Res., Harbin 24(2): 133–134, pl. 1 | 2004 |
| Asteraceae | |
Youngia napifera
| DC. ex Wight | Contr. Bot. India 27 | 1834 |
| Asteraceae | |
Youngia napifolia
| (DC.) DC. | Prodr. 7(1): 193 | 1838 |
| Asteraceae | |
Youngia nilgiriensis
| Babc. | Bull. Misc. Inform. Kew 1939: 662 | 1940 |
| Asteraceae | |
Youngia nujiangensis
| C. Shih | Acta Phytotax. Sin. 33(2): 183, pl. 2, f. 2 | 1995 |
| Asteraceae | |
Youngia ordosica
| Y.Z. Zhao & L. Ma | Bull. Bot. Res., Harbin 23(3): 261 | 2003 |
| Asteraceae | ! |
Youngia paleacea
| (Diels) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 67 | 1937 |
| Asteraceae | |
Youngia paosa
| Steud. | Nomencl. Bot. (ed. 3) 2: 794 | 1840 |
| Asteraceae | |
Youngia parva
| Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 35 | 1937 |
| Asteraceae | ! |
Youngia pilifera
| C. Shih | Acta Phytotax. Sin. 33(2): 183–185, pl. 1, f. 3–4 | 1995 |
| Asteraceae | |
Youngia poosa
| DC. | Prodr. 7(1): 193 | 1838 |
| Asteraceae | ! |
Youngia pratti
| (Babc.) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 81 | 1937 |
| Asteraceae | |
Youngia pseudosenecio
| (Vaniot) C. Shih | Fl. Reipubl. Popularis Sin. 80(1): 157, pl. 36, f. 2 | 1997 |
| Asteraceae | |
Youngia pygmaea
| (Ledeb.) Ledeb. | Fl. Ross. [Ledebour] 2: 838 | 1845 |
| Asteraceae | ! |
Youngia racemifera
| (Hook. f.) Babc. & Stebbins | Univ. Calif. Publ. Bot. 18: 229 | 1943 |
| Asteraceae | ! |
Youngia rosthornii
| (Diels) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 92 | 1937 |
| Asteraceae | ! |
Youngia rubida
| Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 100 | 1937 |
| Asteraceae | |
Youngia runcinata
| DC. | Prodr. 7(1): 192 | 1838 |
| Asteraceae | |
Youngia scaposa
| (C.C. Chang) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 45 | 1937 |
| Asteraceae | |
Youngia serawschanica
| (B. Fedtsch.) Babc. & Stebbins | Univ. Calif. Publ. Bot. 18: 231 | 1943 |
| Asteraceae | ** |
Youngia sericea
| C. Shih | Acta Phytotax. Sin. 33(2): 185 | 1995 |
| Asteraceae | ! |
Youngia sericea
| C. Shih | Komarovia 5: 48 | 2007 |
| Asteraceae | |
Youngia serotina
| Maxim. | Prim. Fl. Amur. 180 | 1859 |
| Asteraceae | |
Youngia setigera
| (J. Scott) Babc. & Stebbins | Univ. Calif. Publ. Bot. 18: 227 | 1943 |
| Asteraceae | |
Youngia silhetensis
| Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 104 | 1937 |
| Asteraceae | ! |
Youngia simulatrix
| (Babc.) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 39 | 1937 |
| Asteraceae | |
Youngia sogdiana
| Krasch. | Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk SSSR 9: 184 | 1946 |
| Asteraceae | |
Youngia sonchifolia
| Maxim. | Mém. Acad. Imp. Sci. St.-Pétersbourg Divers Savans 9: 180 | 1859 |
| Asteraceae | * |
Youngia stebbinsiana
| S.Y. Hu | Quart. J. Taiwan Mus. 22(1–2): 37 | 1969 |
| Asteraceae | |
Youngia stenoma
| (Turcz. ex DC.) Ledeb. | Fl. Ross. [Ledebour] 2: 837 | 1845 |
| Asteraceae | |
Youngia striata
| (Blume) DC. | Prodr. 7(1): 193 | 1838 |
| Asteraceae | ! |
Youngia szechuanica
| (E.S. Söderb.) S.Y. Hu | Quart. J. Taiwan Mus. 22(1–2): 37 | 1969 |
| Asteraceae | |
Youngia taiwaniana
| S.S. Ying | Coloured Ill. Fl. Taiwan 1: 186 | 1980 |
| Asteraceae | |
Youngia tenuicaulis
| (Babc. & Stebbins) Czerep. | Fl. SSSR 29: 385 | 1964 |
| Asteraceae | |
Youngia tenuifolia
| (Willd.) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 46 | 1937 |
| Asteraceae | ! |
Youngia terminalis
| Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 85 | 1937 |
| Asteraceae | ! |
Youngia thunbergiana
| DC. | Prodr. 7(1): 192 | 1836 |
| Asteraceae | ! |
Youngia wilsoni
| (Babc.) Babc. & Stebbins | Publ. Carnegie Inst. Wash. 484: 79 | 1937 |
| Asteraceae | ! |
Youngia yilingii
| C. Shih | Acta Phytotax. Sin. 33(2): 181–182, pl. 1, f. 1–2 | 1995 |
| Asteraceae | |
Youngia zhenduoi
| S.W. Liu & T.N. Ho | Acta Phytotax. Sin. 39(6): 554, f. 1(1–3) | 2001 |