Top native primrose-willows
5 species, native to the US, ranked by caterpillars, then bees and other hosts, food, flowers and shelter.
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Creeping Primrose-willow
Ludwigia repens
caterpillars
4
food
3
flowers
12
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Water Purslane
Ludwigia palustris
caterpillars
4
food
2
flowers
13
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Piedmont Primrose-willow
Ludwigia arcuata
caterpillars
3
flowers
14
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Long Beach Primrose Willow
Ludwigia brevipes
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Creeping Smallflower Seedbox
Ludwigia spathulata