The embryonic stem of a seedling above the cotyledons and below the first true leaves.
The "skin" or outermost layer of cells of a non-woody plant organ (stem, leaves, roots).
a flower's ovary position when located below the attachment of the sepal, petal, and stamen whorls
A plant or plant species which grows upon another plant, but does not draw water or nutrients from that plant.
A plant or plant species that retains green leaves throughout the winter; is not deciduous.