Top native marsh elders
7 species, native to the US, ranked by caterpillars, then bees and other hosts, food, flowers and shelter.
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Sumpweed
Iva annua
caterpillars
5
food
3
flowers
2
-
Marsh Elder
Iva frutescens
caterpillars
3
food
4
flowers
2
-
Dune Marsh-elder
Iva imbricata
caterpillars
3
food
2
-
Narrowleaf Marsh-elder
Iva angustifolia
caterpillars
3
food
1
-
Poverty Weed
Iva axillaris
caterpillars
2
food
3
flowers
2
-
Piedmont Marsh Elder
Iva microcephala
caterpillars
2
food
1
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San Diego Marsh-elder
Iva hayesiana
food
1