Simplify the following text for a Grade 7 native English-speaking person.
Original: Asclepias amplexicaulis ( Blunt-leaved Milkweed , Clasping Milkweed ) is a species of milkweed , in the subfamily Asclepiadaceae , which is cited as a wildflower native to the United States , mostly found in Central and Eastern areas and grown in the spring time .
Simplified: Clasping Milkweed ( Asclepias amplexicaulis ) is a species of milkweed plant . It is also known as Blunt-leaved Milkweed and Sand Milkweed .