| Poaceae | |
Apera arundinacea
| Hook. f. | Fl. Nov.-Zel. 295, t. 67 | 1853 |
| Poaceae | |
Apera aspera
| P. Beauv. | Ess. Agrostogr. 151 | 1812 |
| Poaceae | |
Apera baytopiana
| Doğan | Notes Roy. Bot. Gard. Edinburgh 40(1): 79 | 1982 |
| Poaceae | |
Apera crinita
| (L. f.) P. Beauv. | Ess. Agrostogr. 31, 147, 151 | 1812 |
| Poaceae | |
Apera effusa
| Gray | Contr. Recenc. Pl. Med. Cote d'Ivoire 2: 148 | 1821 |
| Poaceae | ! |
Apera intermedia
| Hack. | Ann. K. K. Naturhist. Hofmus. 20: 430 | 1905 |
| Poaceae | |
Apera interrupta
| (L.) P. Beauv. | Ess. Agrostogr. 31, 151 | 1812 |
| Poaceae | |
Apera liebmannii
| E. Fourn. | Mexic. Pl. 2: 97 | 1886 |
| Poaceae | |
Apera longiseta
| Klokov | Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk SSSR 12: 51 | 1950 |
| Poaceae | |
Apera maritima
| Klokov | Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk SSSR 12: 50 | 1950 |
| Poaceae | |
Apera palustris
| (Huds.) Gray | Nat. Arr. Brit. Pl. 2: 148 | 1821 |
| Poaceae | |
Apera procumbens
| Steud. | Nomencl. Bot. 1840 | 1840 |
| Poaceae | |
Apera purpurascens
| Colenso | Trans. & Proc. New Zealand Inst. 21: 106 | 1889 |
| Poaceae | |
Apera purpurea
| (Gaudin) P. Beauv. | Ess. Agrostogr. 31, 151 | 1812 |
| Poaceae | |
Apera spica-venti
| (L.) P. Beauv. | Ess. Agrostogr. 31, 151 | 1812 |
| Poaceae | |
Apera tenuiflora
| (Willd.) P. Beauv. | Ess. Agrostogr. 142, 151 | 1812 |
| Poaceae | |
Apera triaristata
| Doğan | Notes Roy. Bot. Gard. Edinburgh 40(1): 81 | 1982 |