Merostachys, Sprengel, 1825

Ruiz-Sanchez, Eduardo, Clark, Lynn G., Mejía-Saulés, Teresa & Hernández, Francisco Lorea-, 2018, A new species of Merostachys (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae) with the northernmost distribution of the genus, Phytotaxa 344 (1), pp. 31-38 : 34

Key to the species of Merostachys in Mesoamerica based on vegetative characters.

1. Branch complement with 25–31 branches; foliage leaf blades 0.9–1.3 cm wide, pseudopetioles 2–3 mm long .......... M. pauciflora

1. Branch complement with 10–25 branches; foliage leaf blades 1.8–5.5 cm wide, pseudopetioles 3–10 mm long............................2

2. Branch complement at mid-culm with (7–) 10–25 branches; foliage leaf blades 1.8–2.1 (–2.7) cm wide, pseudopetioles 3–4 mm long.................................................................................................................................................................................. M. mexicana

2. Branch complement at mid-culm with 6–10 branches; foliage leaf blades 2.2–5.5 cm wide, pseudopetioles 6–10 mm long............ ............................................................................................................................................................................................ M. latifolia