Flower profile
Marsh cinquefoil
Comarum palustre
Marsh cinquefoil is a wildflower that USDA PLANTS lists as native in the lower 48 states. In Alaska it's most often seen in bloom in June–July.
*iNaturalist research-grade observations, as of October 17, 2026.
On our lists for: Alaska
Quick look
Comarum palustre, known by the common name marsh cinquefoil, also purple marshlocks and swamp cinquefoil, is a waterside rhizomatous subshrub. It has a circumboreal distribution, occurring throughout cool temperate Asia, Europe, and North America, particularly in northern regions. It is most commonly found on lake shores, marshy riversides and stream margins, often partly submerged with foliage floating.
- It belongs to the Rosaceae 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 25 states. USDA PLANTS
- NatureServe lists it as native to Alaska. NatureServe
- In Alaska, most iNaturalist sightings of it in flower come in June–July. iNaturalist
- iNaturalist has 703 research-grade sightings of it in Alaska, ranking #60 among the 108 flowers on our Alaska list. iNaturalist
Marsh cinquefoil gift ideas
Handmade marsh cinquefoil gifts from independent makers.
🌱 Sample spot. Handmade gift picks from independent shops will appear here once our shop partnership is approved. These cards are placeholders, not real products.
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Marsh cinquefoil art print
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Marsh cinquefoil greeting card
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Marsh cinquefoil mug
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Marsh cinquefoil earrings
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Marsh cinquefoil embroidery pattern
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Marsh cinquefoil sticker
When does it bloom?
In Alaska, most flowering sightings come in June–July.
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: ND (S2), NJ (S1), OH (S2), UT (S1). (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 page for this plant), USDA PLANTS) say whether it's edible or poisonous for people.
It isn't on the ASPCA plant list.
🌿 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 marsh cinquefoil in 25 states.
recorded by USDA PLANTS on our state lists not recorded
See the full list of states
Alaska, California, Colorado, Connecticut, Idaho, Illinois, Indiana, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New Jersey, New York, North Dakota, Ohio, Oregon, Pennsylvania, Utah, Vermont, Washington, Wisconsin, Wyoming.
Alaska counties with USDA records: Aleutians East, Aleutians West, Anchorage, Bethel, Bristol Bay, Chugach, Copper River, Denali, Dillingham, Fairbanks North Star, Haines, Juneau, Kenai Peninsula, Ketchikan Gateway, Kodiak Island, Lake and Peninsula, Matanuska-Susitna, Nome, North Slope, Northwest Arctic, Southeast Fairbanks, Yakutat, Yukon-Koyukuk.
More Alaska flowers
Sources
- USDA, NRCS. PLANTS Database, profile COPA28.
- iNaturalist, Comarum palustre: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 17, 2026.
- Wikipedia, Comarum palustre (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, Comarum palustre (global and state ranks).
- Edibility and toxicity: no source found (marked "not well documented").
- Photo: aarongunnar via iNaturalist · CC BY 4.0 · resized.