Bloomipedia
Sandhill milkweed (Asclepias humistrata)
Photo: Laura Gaudette via iNaturalist · CC BY 4.0 · resized

Flower profile

Sandhill milkweed

Asclepias humistrata

Native to Florida

Sandhill milkweed is a wildflower that USDA PLANTS lists as native in the lower 48 states. In Florida it's most often seen in bloom in March–May.

7states
3,758FL sightings*
4,969U.S. sightings*

*iNaturalist research-grade observations, as of October 17, 2026.

On our lists for: Florida

Quick look

Asclepias humistrata, or the sandhill milkweed, is a species of milkweed plant. It is also known as pinewoods milkweed and pink-veined milkplant. It belongs in the subfamily Asclepiadoideae. It is native to the southeastern United States. It is found in well-drained areas such as sandy woodlands, sandy hills, and Florida scrub.

  • It belongs to the Apocynaceae family. iNaturalist
  • USDA PLANTS describes it as an herb (forb) with a perennial life cycle. USDA PLANTS
  • USDA PLANTS lists it as native in the lower 48 states and records it in 7 states. USDA PLANTS
  • NatureServe lists it as native to Florida. NatureServe
  • In Florida, most iNaturalist sightings of it in flower come in March–May. iNaturalist
  • iNaturalist has 3,758 research-grade sightings of it in Florida, ranking #70 among the 110 flowers on our Florida list. iNaturalist

Sandhill milkweed gift ideas

Handmade sandhill milkweed gifts from independent makers.

When does it bloom?

In Florida, most flowering sightings come in March–May.

Flowering records by month in Florida (iNaturalist research-grade observations marked “Flowering”) (243 records)

Conservation status

Federal (U.S. ESA)
Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
NatureServe global
G4 Apparently secure worldwide. NatureServe
Florida
Not listed Not on Florida Regulated Plant Index (Fla. Admin. Code 5B-40.0055). NatureServe: S4, apparently secure in Florida. FAC 5B-40.0055
Rare elsewhere
Other states where NatureServe ranks it rare or missing: LA (SH). (S1 critically imperiled, S2 imperiled, SH possibly extirpated, SX presumed extirpated.)

Checked October 17, 2026. Rankings and lists can change, so follow the links for the latest.

Can you eat it?

For peoplePoisonous to people

NC State Extension lists it as poisonous to humans (severity: low). Symptoms they list: “Can cause stomach upset, nausea, vomiting, abdominal pain, diarrhea, weakness, lethargy, and confusion if eaten in quantity. Milky sap can cause contact dermatitis and eye irritation.” NC State Extension

For petsToxic to dogs, cats and horses

ASPCA's entry “Milkweed” (Asclepias species), which covers the whole genus, lists it as toxic to dogs, cats and horses. Signs include: Vomiting, profound depression, weakness, anorexia, and diarrhea are common; may be followed by seizures, difficulty breathing, rapid, weak pulse, dilated pupils, kidney or liver failure, coma… ASPCA

🌿 Never eat a wild plant unless you're certain of its ID; this isn't medical advice. Worried about a person? Call Poison Control at 1-800-222-1222. Worried about a pet? Call your vet.

Where does it grow?

USDA PLANTS records sandhill milkweed in 7 states.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Alabama, Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina.

Florida counties with USDA records: Alachua, Baker, Bay, Bradford, Calhoun, Citrus, Clay, Columbia, Dixie, Duval, Escambia, Flagler, Franklin, Gilchrist, Gulf, Hamilton, Hernando, Highlands, Hillsborough, Jackson, Lafayette, Lake, Leon, Levy, Madison, Manatee, Marion, Nassau, Okaloosa, Orange, Osceola, Pasco, Pinellas, Polk, Putnam, Santa Rosa, Seminole, St. Johns, Sumter, Suwannee, Taylor, Volusia, Wakulla, Walton.

More Florida flowers

Sources