Northeastern U.S.A.
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Northeastern U.S.A.
Plants of Northeastern U.S.A.
Explore
Families
Genera
13
Species
Family:
Rubiaceae
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Genera
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Observations count
Species count
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Asperula
168
84
Observations
1
species
Cephalanthus
1,524
1,282
Observations
1
species
Cruciata
5,671
4,456
Observations
2
species
Diodia
424
350
Observations
1
species
Galium
54,440
43,379
Observations
21
species
Hexasepalum
124
49
Observations
1
species
Houstonia
1,025
934
Observations
5
species
Mitchella
1,020
892
Observations
1
species
Richardia
892
659
Observations
2
species
Rubia
986
651
Observations
1
species
Sherardia
4,369
3,215
Observations
1
species
Spermacoce
32
30
Observations
1
species
Stenaria
109
96
Observations
1
species
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Genera