midrib

having one or more incisions reaching nearly to the midrib

Folded lengthwise along the midrib, the upper face being within

break down into components or essential features s having one or more incisions reaching nearly to the midrib

as, an excurrent midrib, one which projects beyond the apex of a leaf

n stiff leathery-leaved fern of western North America having ovate fronds parted to the midrib n north temperate bog shrub with evergreen leathery leaves and small white cylindrical flowers