
Clasping Milkweed
asclepias amplexicaulis
Clasping Milkweed (Asclepias amplexicaulis) is an enchanting, perennial wildflower native to the eastern and central regions of North America. Renowned for its unique structural elegance, this plant stands out among the milkweeds due to its distinctive leaves, which clasp the stout, solitary stem directly without any leaf stalks. It thrives in dry, nutrient-poor sandy soils where many other plants struggle, such as pine barrens, sand dunes, and open woodlands. Beyond its architectural beauty, Clasping Milkweed plays a crucial role in local ecosystems by offering high-quality nectar to a wide variety of native pollinators, including bumblebees and butterflies. It serves as a vital larval host plant for the iconic Monarch butterfly, which relies on the plant's chemical defenses to protect its offspring from predators. For nature enthusiasts, spotting this plant's delicate, spherical cluster of pinkish-purple flowers in a sandy clearing is a rewarding highlight of the late spring and early summer seasons. Take the ultimate field guide with you and identify Clasping Milkweed using the Snappit app.
Habitat: Found in dry, open habitats with sandy or gravelly soils, such as pine barrens, oak savannas, old fields, and coastal sand dunes.
Appearance
This perennial herb typically grows 30 to 100 cm tall from a single, unbranched, glaucous stem. It is easily identified by its opposite, oblong-to-ovate leaves that are highly wavy along the margins, have prominent pinkish-red veins, and clasp the stem tightly at their bases. The leaves have a distinctly pale, bluish-green hue. In late spring, a single, globose cluster of 10 to 40 flowers blooms at the very top of the stem. The individual flowers have reflexed, greenish-purple petals and pale pinkish-to-rose crowns, giving the entire inflorescence a striking, dusty-rose coloration.

Category
PlantsRarity
Common
Danger
1/5 ยท Very low
Snaps
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Interesting facts
The seeds are attached to silky white floss, which was gathered during World War II by children in North America to fill military life preservers.
The species name 'amplexicaulis' translates directly from Latin as 'clasping the stem,' highlighting the plant's most identifying feature.
Unlike most other native milkweeds that feature multiple flower clusters along the stem, Clasping Milkweed almost always produces just a single, terminal flower ball.
Special abilities
Chemical Shield
Produces toxic cardiac glycosides within its milky white sap, making it highly unpalatable and poisonous to most herbivorous insects and mammals.
Drought Resistance
Utilizes a deep, woody taproot system and a waxy, glaucous coating on its leaves to reduce water loss and survive in arid, sandy soils.
Stem Clasping Base
The stalkless, clasping leaves act as natural funnels that direct morning dew and rainwater straight down the stem to the root system.
Measurements & details
- Length
- 30-100 cm
- Weight
- 0.1-0.4 kg
- Lifespan
- 5-15 years
Diet & Feeding
As a photosynthetic plant, it manufactures its own organic compounds from sunlight, carbon dioxide, and water while absorbing minerals through its root system.
Primary Foods
- Sunlight
- Carbon dioxide
- Water
- Soil nutrients
Foraging Method
- Photosynthesis
Ecological connections

Monarch Butterfly
Danaus plexippus
The caterpillar of this butterfly feeds exclusively on milkweed leaves, sequestering toxins to become poisonous to predators.
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Red Milkweed Beetle
Tetraopes tetrophthalmus
Adult beetles feed on the foliage and buds, having adapted to tolerate and store the plant's toxic cardiac glycosides.
American Bumblebee
Bombus pensylvanicus
These insects are major pollinators of the flowers, collecting nectar while accidentally picking up pollen sacs (pollinia).
Traits
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Also known as
No aliases listed yet.
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Safety
Danger
1/5 ยท Very low
No special safety notes yet.
Frequently Asked Questions
How to identify Clasping Milkweed?
The easiest way to identify Clasping Milkweed is to use the Snappit nature identifier app.
How long is Clasping Milkweed?
30-100 cm
How much does Clasping Milkweed weigh?
0.1-0.4 kg
How long does Clasping Milkweed live?
5-15 years
What does Clasping Milkweed eat?
As a photosynthetic plant, it manufactures its own organic compounds from sunlight, carbon dioxide, and water while absorbing minerals through its root system.
Where is Clasping Milkweed usually found?
Found in dry, open habitats with sandy or gravelly soils, such as pine barrens, oak savannas, old fields, and coastal sand dunes.
How does Clasping Milkweed hunt?
Photosynthesis
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