subgenus
Rhododendron
Rhododendron
Field notes
Rhododendron subgenus Rhododendron is a subgenus of the genus Rhododendron. With around 400 species, it is the largest of the eight subgenera (more recently reduced to five) containing nearly half of all known species of Rhododendron and all of the lepidote species (i.e. those having scales on the underside of the leaves).
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Range
Greener is more native, amber more introduced; paler is less certain. How this was decided
Top native Rhododendron All
Native to the US, ranked by caterpillars, then bees and other hosts, food, flowers and shelter.
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Bog Labrador Tea
Rhododendron groenlandicum
caterpillars
39
bees
1
food
8
flowers
95
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Carolina Rhododendron
Rhododendron carolinianum
caterpillars
29
bees
1
food
4
flowers
57
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Gorge Rhododendron
Rhododendron minus
caterpillars
24
bees
1
food
4
flowers
53
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Lapland Azalea
Rhododendron lapponicum
caterpillars
22
food
4
flowers
48
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Western Labrador Tea
Rhododendron columbianum
caterpillars
20
food
2
flowers
41
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Smoky Mountains Rhododendron
Rhododendron smokianum
caterpillars
19
food
4
flowers
50
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Mountain Labrador Tea
Rhododendron neoglandulosum
caterpillars
17
food
2
flowers
37
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Marsh Labrador Tea
Rhododendron tomentosum
caterpillars
8
food
1
flowers
17