Differences Between Asclepias Incarnata and Asclepias Perennis
“White Swamp Milkweed”: A Guide by Johnny Butterflyseed
As an advocate for native plants and the preservation of butterfly habitats, Johnny Butterflyseed is committed to educating enthusiasts about the various milkweed species that support monarch butterflies in Florida and throughout the U.S. Southeast. Today, we focus on two milkweed species that are often the last to be identified in the field due to their subtle differences: Asclepias incarnata and Asclepias perennis.
Identification Key Insights
Based on the USF Atlas of Vascular Plants, here are the critical identification keys for these two species:
Asclepias incarnata:
– Leaf blade base: Rounded to short-tapering
– Corolla (petals) color: Dull rose-purple
Asclepias perennis:
– Leaf blade base: Long tapering
– Corolla color: White to pale pink
While these identification keys provide essential guidance, the subtleties in their descriptions can sometimes lead to confusion. Let’s delve deeper into these characteristics.
