Rottboellia

Rottboellia cochinchinensis (Lour.) Clayton

Natural range: Southeast Asia

Habitat: Disturbed places

Florida status: Nuisance weed

Recognition: Sometimes a very large grass, to 3 m tall. Has leaf blades to 2.5 cm wide, often with a white midrib. Sheaths distinctively with painfully irritating, papilla-based hairs. Inflorescence pencil-like.