Aulonemia, Goudot, 1846

Jiménez-Pérez, Ivan, Rea ́ Tegui, Natalia, Malpartida-Garay, Celia Fiorella & Ruiz-Sanchez, Eduardo, 2025, Aulonemia insolita (Bambusoideae: Bambuseae: Arthrostylidiinae) a new remarkable woody bamboo species with internode dimorphism endemic to Bolivia and Peru, Phytotaxa 694 (3), pp. 223-234 : 230

Key to the species of Aulonemia with dimorphic internodes based on vegetative morphological features

1. Culm leaves with erect blades, culm sheath blade basally fimbriate; outer ligule of foliage leaf laciniate; foliage leaf abaxially covered with minute white tricomes...................................................................................................................... Aulonemia insolita

- Culm leaves with reflexed blades; culm sheath blade fimbriae absent; outer ligule of foliage leaf entire or ciliolate; foliage leaf abaxially glabrous or hirtellous ..........................................................................................................................................................2

2. Branch complement not rebranching; branch complements with 36–116 branches; few fimbriae on the apex of foliage leaf sheath (up to 4), these 1.1–1.6 cm long; foliage leaf blade 0.9–1.6(1.8) cm wide............................................................ Aulonemia hirtula

- Branch complement rebranching; branch complements with 6–24 branches; numerous fimbriae (> to 4) in the apex and upper margin of the foliage leaf sheath, these 2–3.7 cm long; foliage leaf blade 2.3–5.0 cm wide.............................................................3

3. Foliage leaves outer ligule ciliolate, 0.4–0.5 mm long; foliage leaf blade abaxially hirtellous...................... Aulonemia herzogiana

- Foliage leaves outer ligule lacerate, 5 mm long; foliage leaf blade abaxially glabrous........................................... Aulonemia queko