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Plants of Southern New Jersey

                                                                         
Citizens United to Protect the Maurice River & Its Tributaries
Photos by Renee Brecht    Plants of Southern NJ: Home Citizens United to Protect the Maurice River 

Plant Profile

Asclepias incarnata  

swamp milkweed


Asclepias incarnata
Opuntia humifusa
Photo by Renee Brecht Britton and Brown. See credits below.**

Botanical name: Asclepias incarnata L.
Common name: swamp milkweed
Group: dicot
Family: Asclepiadaceae
Growth Type: forb/herb
Duration: perennial
Origin: native
Plant height: 1' - 6'
Foliage: leaves narrowly oval, broader toward either end, oblong, or linear, 2 1/2 -6", lateral veins in leaf spread at an acute angle
Flower color: Flowers in 4-20 flat clusters , clusters 1-2" wide; magenta, 3/8"; horn projecting well out of hood
Flowering/fruiting time blooms early July to mid August; fruits August to October
Habitat: wet lowlands, swamps, watersides, alluvium
Range in New Jersey: statewide outside the pine barrens
Heritage ranking if any: n/a
Distribution Asclepias incarnata distribution
Misc.: Often used by pollinators for nectar, and also for larval food, especially the Monarch butterfly, which will lay eggs on the plants.
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Sources


**
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 2: 572.
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