Flower profile
Seaside daisy
Erigeron glaucus
Seaside daisy (Erigeron glaucus) is a flowering plant in the Asteraceae family, native in the lower 48 states, blooming mostly April–August across the U.S.
Seaside daisy is a wildflower that USDA PLANTS lists as native in the lower 48 states. In California it's most often seen in bloom in April–August.
*iNaturalist research-grade observations, as of October 17, 2026.
On our lists for: California
Quick look
Erigeron glaucus is a species of flowering plant in the family Asteraceae known by the common name seaside fleabane, beach aster, or seaside daisy. It is native to the West Coast of the United States.
- It belongs to the Asteraceae 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 2 states. USDA PLANTS
- NatureServe lists it as native to California. NatureServe
- In California, most iNaturalist sightings of it in flower come in April–August. iNaturalist
- iNaturalist has 11,558 research-grade sightings of it in California, ranking #78 among the 178 flowers on our California list. iNaturalist
When does it bloom?
In California, most flowering sightings come in April–August.
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
- California
- Not listed Not on California state-listed endangered, threatened and rare plants (14 CCR § 670.2), per CDFW's CNDDB list (July 2026). NatureServe: SNR, not yet ranked in California. CNDDB listed plants (July 2026)
- Rare elsewhere
- No other U.S. state ranks it S1, S2, SH or SX.
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. For context only: ASPCA lists a related species, Erigeron speciosus (“Fleabane”), as toxic to dogs and cats. That doesn't tell us about this species, so keep pets away to be safe. 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 seaside daisy in 2 states.
recorded by USDA PLANTS on our state lists not recorded
See the full list of states
California, Oregon.
California counties with USDA records: Del Norte, Humboldt, Los Angeles, Marin, Mendocino, Monterey, San Francisco, San Luis Obispo, San Mateo, Santa Barbara, Santa Cruz, Sonoma, Ventura.
Names, range and relatives
County records: USDA PLANTS lists it in 19 counties across 2 states; the most are in California (13), Oregon (6).
Other Erigeron on Bloomipedia (4): Philadelphia fleabane, Daisy fleabane, Oakleaf fleabane, Wandering daisy.
More from the Asteraceae family (212 on Bloomipedia; most observed first): Common yarrow, Goldenrods, White snakeroot, Sunflowers, Chicory, Black-eyed Susan, Bull thistle, Common dandelion.
More California flowers
Sources
- USDA, NRCS. PLANTS Database, profile ERGL3.
- iNaturalist, Erigeron glaucus: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 17, 2026.
- Wikipedia, Erigeron glaucus (lead quoted under CC BY-SA 4.0).
- California: California state-listed endangered, threatened and rare plants (14 CCR § 670.2), per CDFW's CNDDB list (July 2026).
- California: California noxious weed species (3 CCR § 4500).
- USFWS, ECOS species database (ESA listing check), October 17, 2026.
- NatureServe Explorer, Erigeron glaucus (global and state ranks).
- Edibility and toxicity: ASPCA.
- Photo: Zoltán Stekkelpak via iNaturalist · CC0 · resized.