Kingdom/Regno: Plantae (Plants/Piante)
Subkingdom/Sottoregno: Tracheobionta (Vascular plants/Piante vascolari)
Superdivision/Superdivisione: Spermatophyta (Seed plants/Piante con semi)
Division/Divisione: Magnoliophyta (Flowering plants/Piante con fiori)
Class/Classe: Magnoliopsida (Dicotyledons/Dicotiledoni)
Subclass/Sottoclasse: Asteridae
Order/Ordine: Asterales
Family/Famiglia: Asteraceae (Aster family)
Genus/Genere: Dahlia Cav.

Species/Specie:
1) Dahlia coccinea Cav. [Icon. 3(2):33, t. 266. 1795-1796] (= Dahlia gracilis Ortgies) (= Dahlia popenovii Saff.) Red dahlia
2) Dahlia excelsa Benth. [Maund, Botanist 2: t. 88. 1846]
3) Dahlia gracilis Ortgies [Gartenflora 25:97, t. 861. 1876] (= Dahlia coccinea Cav.) (= Dahlia popenovii Saff.)
4) Dahlia hybrid Dahlia
5) Dahlia imperialis Roezl ex Ortgies [Gartenflora 12:243, t. 407. 1863] (= Dahlia maximiliana hort. ex Hook. f.) (= Dahlia maxonii Saff.)
6) Dahlia maximiliana hort. ex Hook. f. [Bot. Mag. 125: t. 7655. 1899 (Gard. Chron. ser. 2, 11:216, 12:525. 1879, nom. nud.)] (= Dahlia imperialis Roezl ex Ortgies) (= Dahlia maxonii Saff.)
7) Dahlia maxonii Saff. [J. Wash. Acad. Sci. 9:371. 1919] (= Dahlia imperialis Roezl ex Ortgies) (= Dahlia maximiliana hort. ex Hook. f.)
8) Dahlia merckii Lehm. [Sem. hort. bot. hamburg. 1839 (Linnaea 14(Litt.):130. 1840]
9) Dahlia pinnata Cav. [Icon. 1(3):57, t. 80. 1791] (= Dahlia variabilis (Willd.) Desf.) (= Georgina variabilis Willd.) Dahlia
10) Dahlia popenovii Saff. [J. Wash. Acad. Sci. 9:369, fig. 3. 1919] (= Dahlia coccinea Cav.) (= Dahlia gracilis Ortgies)
11) Dahlia rosea Cav. [Icon. 3(2):33, t. 265. 1795-1796] Dahlia
12) Dahlia scapigera (A. Dietr.) Knowles & Westc. [Fl. cab. 3:113. 1839-1840] (= Georgina scapigera A. Dietr.)
13) Dahlia variabilis (Willd.) Desf. [Tabl. école bot. ed. 3:182. 1829 (Cat. pl. hort. Paris)] (= Dahlia pinnata Cav.) (= Georgina variabilis Willd.) (G bulb) Dalia

English name of/Nome inglese di:
- Dahlia hybrid (Asteraceae)
- Dahlia pinnata Cav. (Asteraceae)
- Dahlia rosea Cav. (Asteraceae)

Kingdom/Regno: Plantae (Plants/Piante)
Subkingdom/Sottoregno: Tracheobionta (Vascular plants/Piante vascolari)
Superdivision/Superdivisione: Spermatophyta (Seed plants/Piante con semi)
Division/Divisione: Magnoliophyta (Flowering plants/Piante con fiori)
Class/Classe: Magnoliopsida (Dicotyledons/Dicotiledoni)
Subclass/Sottoclasse: Rosidae
Order/Ordine: Fabales
Family/Famiglia: Fabaceae (Pea family)
Genus/Genere: Dahlstedtia Malme

Species/Specie:
1) Dahlstedtia pentaphylla (Taub.) Burkart (= Dahlstedtia pinnata (Benth.) Malme)
2) Dahlstedtia pinnata (Benth.) Malme [Ark. Bot. 4(9):4. 1905] (= Dahlstedtia pentaphylla (Taub.) Burkart)

English name of/Nome inglese di:
- Larix gmelinii (Rupr.) Rupr. (Pinaceae)