Summer Wildflowers of Mount Holyokeby Karen Searcy
Taxonomy
Asclepiadaceae
Asclepias quadrifolia (Four-leaved Milkweed)
Flower colorpink/white
Number of petals5
Petal fusionfree
Lea arrangementopposite/whorled
Leaf groupingsimple
Leaf marginsentire
Leaf/leaflet shapeegg-shaped to lanceolate
Fruit typedry
Fruit colorgreen
Flowering datesJune
HabitatMoist, rocky woods
LocalityMain ridge
DescriptionA 1 - 2 foot tall plant with an unbranched stem and milky sap. The leaf pattern is distinctive with one or two sets of four whorled leaves in the middle of the stem and a pair of opposite leaves above and below the whorled ones. The white flowers are in 1 - 4 terminal umbels.
Habit photoPW
Flower photoTB