racemus, = the stalk of a cluster of grapes and similar plants;
mitra, = a girdle; headband; mitre, turban;
-ium, = ‘characteristic of’, hence indicates connection or resemblance.
(ld, LS, BL)

For Carl Gottlob Rafn (1769-1808).**
(Ch)

rana, = a frog;
-ulus, = diminutive.
ranunculus, = a little frog, a tadpole, porwiggle; a medicinal plant, called also batrachion, perhaps crowfoot, ranunculus.
(preference for marshy habitats, similar to frogs)
(ld, BL, Le)

Perhaps from the native Guinean name.
(Le)

raphe, = a turnip, rape;
rapum, = a knob or lump formed by the roots of a tree;
-astrum, = indicates inferiority or incomplete resemblance, hence often applied to wild equivalent of a cultivated plant.
(referring to the leaves)
(ld, BL, Le)

For François Vincent Raspail (1794-1878).**
(Ch)

resecro, = to uncurse, i.e. to free from a curse;
resedo, = to heal, assuage.
(species of mignonette which was believed to heal bruises)
(ld, Le)

restis, = a rope, cord;
-io, = indicates the abstract or general result of an action.
(early settlers used ‘restios’ for rope)
(ld, BL, Le)

For Anders Johan Retzius (1742-1821).**
(Ch)

rachos, = a thorn-bush, briar, a thorn-hedge; a thorn-stick, a twig;
rhach-, rach-, = pertaining to the main axis, spine or backbone;
carpos, = fruit.
(LS, BL)

riza, = a root;
rhiz-, = pertaining to roots, root-like organs;
gonia, = a corner, angle;
-gone, = reproductive organs;
-ium, = diminutive.
(LS, BL)

rhodon-, = the rose;
rhodo-, = rose-, rosy-red;
come, = the hair; the foliage, leaves of trees.
coma, = the hair of the head.
(tuft of hair)
(terminal clusters of reddish inflorescences)
(LS, BL, Ws, Le)

rugchos, = a snout, muzzle; abeak, bill;
rhyncos, = snout, muzzle, beak;
rhynch-, rhyncho-, = provided with a snout or beak, i.e. a projecting appendage;
-osus, = indicates abundance or full or marked development.
(the style)
(LS, BL, Le)

ricinus, = a tick, tike.
(Latin name for the castor oil plant, also ‘tick’: = resemblance of the seed)
(ld, Le)

For Dr. Norman Keith Bonner Robson (1928 ).**
dendron, = a tree.

(Ch, BL)

For Willem (Wilhelm) Roell (18th c.).**
(Ch)

For Johannes August Christian Roeper (1801 – 1885),** German botanist.
(Ch)

After the legendary Romulus.**
(The genus is represented in Italy)
(Ch, Le)

ros, roris, = dew;
-idus, = indicates a state or an action in progress;
roridus, = bedewed, dewy, with dew;
-ula, = diminutive.
(bedewed, dewey, appearing as if covered with fine dewdrops)
(glistening, insect trapping glands)
(ld, BL, Le)

ruber, ruberus, = red, ruddy.
rubus, = a bramble-bush, blackberry-bush; a blackberry.
(colour of the fruits of many of the species)
(ld, Le)

rumex, = sorrel.
(Latin name for culinary sorrel, used by Pliny)
(Ws, Le)

For Karl Friedrich Ludwig Felix von Rumohr (1785-1843).**
(Ch)

For Heinrich Bernard Rupp [Ruppius, Ruppee] (1688-1719).**
(Ch)

For Ernst Julius Rusch (1867-1957).**
(Ch)