Words to Describe nervure

How nervure often is described ("________ nervure")

• third
• longitudinal
• submarginal
• broken
• principal
• anterior
• median
• radial
• single
• anal
• hard
• central
• strong
• costal
• toothed
• wing
• internal
• oblique
• forked
• faint
• second
• marginal
• fourth
• discal
• short
• subcostal
• smooth
• discoidal
• frail
• submedian
• first
• precostal
• cross
• recurrent
• medial
• basal
• middle
• straight