SafePlants

Sandhill Milkweed (Asclepias humistrata)

Asclepias humistrata, commonly known as Sandhill Milkweed, Pinewoods Milkweed, or Pink-Veined Milkplant, is a fascinating native plant found in specific regions of the United States. This page provides information about its classification, distribution, characteristics, and ecological importance.

Taxonomy and Nomenclature

• Scientific Name: Asclepias humistrata Walter
• Common Names: Sandhill Milkweed, Pinewoods Milkweed, Pink-Veined Milkplant
• Family: Apocynaceae (formerly Asclepiadaceae, the Milkweed Family)
• Subfamily: Asclepiadoideae
• Rank: Species
• Nomencl. ref.: Fl. Carol. Walter 105. 1788 Apr-Jun 1788

Distribution and Habitat

• Native to Florida and other states in the southeastern United States (Alabama, Georgia, Louisiana, Mississippi, North Carolina).
• Found in dry sandy soils, including sandhills, pinelands, and dry, sandy woods. It can also be found in moist to wet soils, such as swamps, wet meadows, and roadside ditches.
• Observed in locations such as Blackwater River State Forest, Okaloosa County, FL and Robeson Co., NC.

Morphological Characteristics and Growth Habits

• The stems are described as smooth, stout, and unbranched, generally occurring in spreading clusters.
• The plant exhibits a prostrate or sprawling growth habit. Humistrata means low growing or sprawling.
• Some plants have stiff purple-hued stems.
• Flowers are white or pink and arranged in a simple umbel.
• It can be upright, hairy to smooth.

Ecological Role

• Plays a critical role in the migratory patterns of monarch butterflies.
• Serves as a host plant for Monarch (Danaus plexippus) caterpillar larvae.
• Attracts many butterflies.

Quirky Facts

• Some sources indicate a scientific name of Annona reticulata, however this is incorrect as it refers to the Custard Apple.

Further Information

• Lady Bird Johnson Wildflower Center
• Discover Life
• University of Georgia
• Southeasternflora.com
• Native American Seed