Rose Term Glossary
AARS
All American Rose Selection.
Blade
A modified or reduced leaf that occurs beneath and next to a peduncle.
Bud union
The swollen part of the stem where the scion of a grafted rose meets the understock .
Calyx
The protective cover of a rose flower, composed of the sepals .
Cane
One of the main stems of a rose plant.
Corolla
The petals of a rose flower considered as a single unit.
Cultivar
A named rose variety exhibiting distinct and consistent features, indicated by single quotation marks.
Hip
The fruit of a rose Inflorescence: the flowering part of a plant; a rose inflorescence may bear single or multiple flowers.
Leaflet
The individual segment of a compound rose leaf.
Node
The point on a stem from which leaves and buds emerge.
Old Rose
Strictly speaking, a rose introduced before 1867, but more loosely used to describe any rose grown or introduced before 1900. Once-blooming: a rose that flowers only once in early summer and does not repeat.
Once-blooming
A rose that flowers only once in early summer and does not repeat.
Own Root
A rose propagated as a cutting rather than by grafting.
Peduncle
A stalk that supports a single flower or flower cluster Petal: the showy, usually colored part of a flower.
Petiole
The stalk by which a leaf attaches to a stem; also leafstalk.
Pistil
The female reproductive organ of a flower, consisting of an ovary, style, and stigma.
Prickle
The technical term for a rose thorn.
Rootstock
The root portion of a plant onto which the scion is grafted; also understock.
Scion
A shoot grafted onto a rootstock; the "top" of a grafted rose.