What is "crista-galli"

Crista-galli or crista-gallii, hen crest in Latin, may refer to:

• Erythrina crista-galli, a flowering tree species native to Argentina, Uruguay, Brazil and Paraguay
• Cynosurus crista-galli, a grass species in the genus Cynosurus
• Nephrophyllidium crista-galli, a plant species
• Polylepis crista-galli, a plant species endemic to Bolivia
• Tillandsia crista-gallii, a plant species endemic to Mexico