The continuation of the petiole of a pinnately compound leaf around which the leaflets attach.
The main vein of a simple leaf or leaflet, running from the petiole to its apex, and from which the other veins usually spread.
A cut of beef between the chuck rib and fore ribs.
The continuation of the petiole of a pinnately compound leaf around which the leaflets attach.
The strengthened vein down the middle of a flower petal or simple leaf or leaflet.