1. Slender fern of northern North America with shining chestnut-coloured stipes and bipinnate fronds with usually distinct marginal sori
   - Alpine woodsia, northern woodsia, flower-cup fern

Type of: woodsia

• Hexagrammidae
• Hexagrammos
• Hexagrammos decagrammus
• hexahedron
• Hexalectris
• Hexalectris spicata
• Hexalectris warnockii
• hexamerous
• hexameter
• Hexamita
• Hexanchidae
• Hexanchus
• Hexanchus griseus
• hexane
• hexanedioic acid
• hexangular
• hexanoic acid
• hexapod
• Hexapoda
• hexastyle
• Hexateuch
• hexed
• hexenbesen
• hexestrol
• hexose