Flower profile
White twisted-stalk
Streptopus amplexifolius
White twisted-stalk (Streptopus amplexifolius) is a flowering plant in the Liliaceae family, introduced in the lower 48 states, blooming mostly May–July across the U.S.
White twisted-stalk is a wildflower that USDA PLANTS lists as introduced in the lower 48 states.
*iNaturalist research-grade observations, as of October 17, 2026.
On our lists for: Alaska
Quick look
Streptopus amplexifolius is a species of flowering plant in the family Liliaceae, native to North America, Europe and Asia.
- It belongs to the Liliaceae family. iNaturalist
- USDA PLANTS describes it as an herb (forb) with a perennial life cycle. USDA PLANTS
- USDA PLANTS lists it as introduced in the lower 48 states and records it in 27 states. USDA PLANTS
- NatureServe lists it as native to Alaska. NatureServe
- iNaturalist has 1,711 research-grade sightings of it in Alaska, ranking #19 among the 121 flowers on our Alaska list. iNaturalist
When does it bloom?
Conservation status
- Federal (U.S. ESA)
- Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
- NatureServe global
- G5 Secure worldwide. NatureServe
- Alaska
- No list Alaska has no state law listing endangered or threatened plants, so we show NatureServe's Alaska ranks instead. NatureServe: SNR, not yet ranked in Alaska.
- Rare elsewhere
- Other states where NatureServe ranks it rare or missing: AZ (S2), CT (S1), MA (S1), NC (S1), PA (S1), VA (S1), WI (S2). (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?
None of the sources we checked (NC State Extension (no edibility or poison notes on its page), USDA PLANTS) say whether it's edible or poisonous for people. NC State Extension
It isn't on the ASPCA plant list, and NC State Extension doesn't flag it for pets.
🌿 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 white twisted-stalk in 27 states.
recorded by USDA PLANTS on our state lists not recorded
See the full list of states
Alaska, Arizona, California, Colorado, Connecticut, Idaho, Maine, Maryland, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Oregon, Pennsylvania, South Dakota, Tennessee, Utah, Vermont, Virginia, Washington, Wisconsin, Wyoming.
Alaska counties with USDA records: Aleutians East, Aleutians West, Anchorage, Bethel, Chugach, Copper River, Denali, Dillingham, Haines, Juneau, Kenai Peninsula, Kodiak Island, Lake and Peninsula, Matanuska-Susitna, Nome, Sitka, Southeast Fairbanks, Yakutat, Yukon-Koyukuk.
Names, range and relatives
Native status by region (USDA PLANTS): Alaska: Introduced; Alaska: Native; Canada: Native; Greenland: Native; Lower 48 states: Introduced; Lower 48 states: Native; St. Pierre and Miquelon: Native.
County records: USDA PLANTS lists it in 265 counties across 25 states; the most are in Oregon (28), Washington (28), Colorado (26).
More from the Liliaceae family (32 on Bloomipedia; most observed first): Yellow trout lily, Cucumber root, Bluebead lily, White fawnlily, Checker lily, White globe lily, Glacier lily, Yellow mariposa lily.
More Alaska flowers
Sources
- USDA, NRCS. PLANTS Database, profile STAM2.
- iNaturalist, Streptopus amplexifolius: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 17, 2026.
- Wikipedia, Streptopus amplexifolius (lead quoted under CC BY-SA 4.0).
- Alaska: Alaska prohibited and restricted noxious weeds (11 AAC 34.020).
- USFWS, ECOS species database (ESA listing check), October 17, 2026.
- NatureServe Explorer, Streptopus amplexifolius (global and state ranks).
- Edibility and toxicity: NC State Extension.
- Photo: mfeaver via iNaturalist · CC BY 4.0 · resized.