Tripogon, Roemer & Schultes, 1817

Gutiérrez, Harol, Castañeda, Roxana, Gonzales, Teresa, Mendez, Alejandrina Sotelo- & Peterson, Paul M., 2021, Tripogon nicorae var. aristulata (Poaceae), a new variety from Peru, Phytotaxa 523 (1), pp. 110-115 : 114

Key to Tripogon

and Tripogonella in Peru including infraspecific taxa

1. Upper glumes 1.4−2.4 mm long, lower glumes 1–2 mm long, lemma apex truncate ....................................... Tripogonella spicata

- Upper glumes 2.6−3.5 mm long, lower glumes 2–2.5 mm long, lemma apex bilobed......................................................................2

2. Paleas 0.4−0.5 mm wide, apex bilobed with two excurrent veins, keel of the lower glume scabrous ................................................ .......................................................................................................................................................... Tripogon nicorae var. aristulata

- Paleas (0.6–) 0.9–1.4 mm wide, apex incised without awns, keel of the lower glume smooth ........... Tripogon nicorae var. nicorae