GENUS NAME:

a

b

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d

e

f

g

h

i

j

k

l

m

n

o

p

q

r

s

t

u

v

w

x

y

z

Rabdosia

4 types

Rabiea

3 types

Radermachera

3 types

Rafinesquia

1 type

Randia

2 types

Ranunculus

41 types

Ranzania

1 type

Raoulia

4 types

Raphionacme

1 type

Ratibida

6 types

Rauhia

1 type

Raukaua

1 type

Rebutia

17 types

Rehmannia

2 types

Reineckea

3 types

Remusatia

4 types

Reseda

1 type

Restio

4 types

Retama

1 type

Reynoutria

4 types

Rhagodia

1 type

Rhamnus

25 types

Rhaphiolepis

14 types

Rhapis

2 types

Rhaponticum

1 type

Rheum

9 types

Rhexia

1 type

Rhipsalis

35 types

Rhodanthe

3 types

Rhodanthemum

3 types

Rhodiola

3 types

Rhodochiton

1 type

Rhodocoma

3 types

Rhododendron

2017 types

Rhodohypoxis

25 types

Rhodopentas

1 type

Rhodophiala

6 types

Rhodotypos

1 type

Rhus

22 types

Rhynchospora

2 types

Ribes

145 types

Ricinus

6 types

Ridolfia

1 type

Rivina

1 type

Robinia

21 types

Rodgersia

21 types

Rohdea

32 types

Rojasianthe

1 type

Romanzoffia

1 type

Romneya

3 types

Romulea

10 types

Rondeletia

2 types

Rosa

458 types

Roscoea

20 types

Rosmarinus

40 types

Rosularia

6 types

Rotheca

3 types

Rothmannia

1 type

Rubia

1 type

Rubus

65 types

Rudbeckia

55 types

Ruellia

20 types

Rumex

8 types

Rumfordia

1 type

Rumohra

2 types

Ruschia

13 types

Ruscus

11 types

Russelia

6 types

Ruta

6 types

Ruttya

1 type