| Arecaceae | |
Acanthorrhiza aculeata
| (Liebm. ex Mart.) H. Wendl. | Gartenflora 18: 242 | 1869 |
| Arecaceae | |
Acanthorrhiza arborea
| Drude ex Hook. f. | Rep. Progr. Condition Roy. Bot. Gard. Kew 1882: 64 | 1884 |
| Arecaceae | |
Acanthorrhiza argentea
| (Lodd. ex Schult. & Schult. f.) O.F. Cook | Natl. Hort. Mag. 20: 50 | 1941 |
| Arecaceae | |
Acanthorrhiza chuco
| (Mart.) Drude | Fl. Bras. 3(2): 554 | 1882 |
| Arecaceae | * |
Acanthorrhiza collinsii
| O.F. Cook | Natl. Hort. Mag. 20: 50 | 1941 |
| Arecaceae | |
Acanthorrhiza kalbreyeri
| Dammer ex Burret | Notizbl. Bot. Gart. Berlin-Dahlem 11(105): 313 | 1932 |
| Arecaceae | ** |
Acanthorrhiza mocinni
| (Kunth) Benth. & Hook. f. ex Hemsl. | Biol. Cent.-Amer., Bot. 3(18): 411 | 1885 |
| Arecaceae | |
Acanthorrhiza mocinoi
| (Kunth) Benth. & Hook. f. | Gen. Pl. 3: 925 | 1883 |
| Arecaceae | |
Acanthorrhiza stauracantha
| (Heynh.) Linden | Cat. Général 87: 75 | 1871 |
| Arecaceae | |
Acanthorrhiza ucayalina
| Huber | | |
| Arecaceae | ! |
Acanthorrhiza wallisii
| H. Wendl. ex Regel | Gartenflora 28: 163–164, t. 977, f. 2 | 1879 |
| Arecaceae | |
Acanthorrhiza warscewiczii
| H. Wendl. | Gartenflora 18: 242 | 1869 |