midvein
midvein · midveins
The main vein of a simple leaf or leaflet, running from the petiole to its apex, and…The main vein of a simple leaf or leaflet, running from the petiole to its apex, and from which the other veins usually spread.
The main vein of a simple leaf or leaflet, running from the petiole to its apex, and…The main vein of a simple leaf or leaflet, running from the petiole to its apex, and from which the other veins usually spread.