Glossary

Glossary

Glossary

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There are currently 19 names in this directory beginning with the letter R.
Raceme
An unbranched, elongated inflorescence with pedicellate flowers maturing from the bottom upward, an indeterminate single axis type of inflorescence

Racemiform
An inflorescence with the general appearance, but not necessarily the structure, of a true raceme

Racemose
Having flowers in raceme-like inflorescence that may or may not be true racemes

Rachis
The main axis of a structure such as on a compound leaf where the leaflets are attached, or on an inflorescence

Ramification, Ramified
The act of branching out or dividing into branches; branched

Receptacle
The portion of the pedicel where the flower parts are attached

Recurved
Curls gradually outward or downward towards its tip

Reflexed
Regarding plant habit, bends outward or downward at a sharp angle

Reniform
Shaped like a kidney, as in a leaf shape View Illustration

Repand
A leaf margin with an uneven, slightly wavy or weakly sinuate margin; undulate

Repent
Creeping along the surface rooting at nodes

Reticulate, Reticulation
Having a netted or network pattern showing weak grooves outlining veining

Retuse
With a rounded sinus at the apex

Rex
A type of Begonia that is grown for its multicolored leaves. All Rex culturum types are descended from the Indian species B. rex that has been crossed with other types of rhizomatous begonias

Rhizomatous
Begonias possessing rhizomes, these are easy-care plants with interesting leaves, growing year-round, and having flower clusters that stick out above the foliage like clouds. Ex. B. ‘Erythrophylla’

Rhizome
A persistent stem that grows on, or under the ground, with nodes and internodes producing roots on the underside when it touches the soil, or stems or shoots above ground

Rotate
Venation In peltate leaves, the veins radiating out from the umbo

Rotundate
Round or rounded in outline

Rugose
Surface covered with a network of veins (reticulated) with the spaces between them convex (wrinkled) with irregularly curving, inward or outward, elevations Examples: B. rajah, B. goegoensis


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