Elms

Range

Greener is more native, amber more introduced; paler is less certain. How this was decided

Key traits

Layer

Trees

Plant type

Perennial Shrub Tree

From USDA PLANTS.

• American Elm Ulmus americana caterpillars 135 hosts 10 food 79 flowers 76 shelter 4
• Slippery Elm Ulmus rubra caterpillars 67 hosts 5 food 63 flowers 23 shelter 2
• Rock Elm Ulmus thomasii caterpillars 64 hosts 4 food 51 flowers 13
• Winged Elm Ulmus alata caterpillars 55 hosts 4 food 52 flowers 14
• Cedar Elm Ulmus crassifolia caterpillars 53 hosts 4 food 46 flowers 13
• September Elm Ulmus serotina caterpillars 46 hosts 3 food 36 flowers 11