Bloomipedia
Redstem stork's-bill (Erodium cicutarium)
Photo: Kathy Richardson via iNaturalist · CC BY 4.0 · resized

Flower profile

Redstem stork's-bill

Erodium cicutarium

Redstem stork's-bill (Erodium cicutarium) is a flowering plant in the Geraniaceae family, introduced in the lower 48 states, blooming mostly February–May across the U.S.

Introduced in the lower 48

Redstem stork's-bill is a wildflower that USDA PLANTS lists as introduced in the lower 48 states. It's on our flower lists for 13 states, and across the U.S. it's most often seen in bloom in February–May.

49states where USDA records it
13Bloomipedia state lists include it
60,024U.S. sightings*

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

On our lists for: Arizona, California, Colorado, Delaware, Idaho, Kansas, Nevada, New Mexico, Oklahoma, Oregon, Texas, Utah, Washington

🚫
Regulated invasive plant in Colorado. It's on that state' official invasive plant list (Colorado: List C noxious weed). Please don't plant or share it there. 8 CCR 1206-2

Quick look

Erodium cicutarium, also known as common stork's-bill, redstem filaree, redstem stork's bill or pinweed, is a herbaceous annual – or in warm climates, biennial – member of the family Geraniaceae of flowering plants.

  • It belongs to the Geraniaceae family. iNaturalist
  • USDA PLANTS describes it as an herb (forb) with a annual, biennial life cycle. USDA PLANTS
  • USDA PLANTS lists it as introduced in the lower 48 states and records it in 49 states. USDA PLANTS
  • In California, most iNaturalist sightings of it in flower come in February–May. iNaturalist
  • In Texas, most iNaturalist sightings of it in flower come in January–April. iNaturalist
  • iNaturalist has 23,986 research-grade sightings of it in California, ranking #17 among the 178 flowers on our California list. iNaturalist
  • iNaturalist has 10,205 research-grade sightings of it in Texas, ranking #54 among the 169 flowers on our Texas list. iNaturalist
  • iNaturalist has 4,565 research-grade sightings of it in Colorado, ranking #24 among the 160 flowers on our Colorado list. iNaturalist

When does it bloom?

Flowering records by month across the U.S. (iNaturalist research-grade observations marked “Flowering”) (16,957 records)
Bloom time in the 13 states whose Bloomipedia list includes it
StateTypePeak bloomSightings*
CaliforniaIntroducedFebruary–May23,986
TexasIntroducedJanuary–April10,205
ColoradoIntroducedMarch–May4,565
UtahIntroducedMarch–May3,056
ArizonaIntroducedJanuary–April2,692
WashingtonIntroducedMarch–May2,643
OregonIntroducedMarch–May2,023
New MexicoIntroducedMarch–May1,575
IdahoIntroducedMarch–June1,533
NevadaIntroducedFebruary–May1,166
OklahomaIntroducedfew records (42)700
KansasIntroducedfew records (15)290
DelawareIntroducedfew records (30)158

Conservation status

Federal (U.S. ESA)
Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
NatureServe global
GNR Not yet ranked worldwide. NatureServe
State rare plant lists
Not listed Not on the official rare plant list in 7 of our 13 states.
See each state
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: SNA, not applicable (usually because it isn't native there) in California. CNDDB listed plants (July 2026)
Texas
Not listed Not on Texas endangered and threatened plants (31 Tex. Admin. Code § 69.8), as listed by Texas Parks and Wildlife. NatureServe: SNA, not applicable (usually because it isn't native there) in Texas. 31 TAC 69.8
Arizona
Not listed Not on Arizona Native Plant Law protected plants (Ariz. Admin. Code R3-3 Art. 11, App. A, eff. Feb. 2, 2025). NatureServe: SNA, not applicable (usually because it isn't native there) in Arizona. AAC R3-3 App. A
Oregon
Not listed Not on Oregon endangered and threatened plants (OAR 603-073-0070). NatureServe: SNA, not applicable (usually because it isn't native there) in Oregon. OAR 603-073-0070
New Mexico
Not listed Not on New Mexico state endangered plant species (19.21.2.9 NMAC). NatureServe: SNA, not applicable (usually because it isn't native there) in New Mexico. 19.21.2.9 NMAC
Nevada
Not listed Not on Nevada fully protected plants, critically endangered (NAC 527.010). NatureServe: SNA, not applicable (usually because it isn't native there) in Nevada. NAC 527.010
Delaware
Not listed Not on Rare and Uncommon Plants of Delaware (DNREC, 2024; informational, Delaware has no state plant-protection list). NatureServe: SNA, not applicable (usually because it isn't native there) in Delaware. DE rare plants 2024
Colorado
No list Colorado has no state law listing endangered or threatened plants, so we show NatureServe's Colorado ranks instead. NatureServe: SNA, not applicable (usually because it isn't native there) in Colorado.
Utah
No list Utah has no state law listing endangered or threatened plants, so we show NatureServe's Utah ranks instead. NatureServe: SNA, not applicable (usually because it isn't native there) in Utah.
Washington
No list Washington has no state law listing endangered or threatened plants (the Washington Natural Heritage Program's rare plant list isn't regulatory), so we show NatureServe's Washington ranks instead. NatureServe: SNA, not applicable (usually because it isn't native there) in Washington.
Idaho
No list Idaho has no state law listing endangered or threatened plants, so we show NatureServe's Idaho ranks instead. NatureServe: SNA, not applicable (usually because it isn't native there) in Idaho.
Oklahoma
No list Oklahoma has no state law listing endangered or threatened plants, so we show NatureServe's Oklahoma ranks instead. NatureServe: SNA, not applicable (usually because it isn't native there) in Oklahoma.
Kansas
No list Kansas's endangered and threatened list (K.A.R. 115-15-1) covers animals only, so we show NatureServe's Kansas ranks for plants. NatureServe: SNA, not applicable (usually because it isn't native there) in Kansas.
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?

For peopleNot well documented

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.

For petsNot well documented

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 redstem stork's-bill in 49 states plus Washington, D.C.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming; District of Columbia.

California counties with USDA records: Alameda, Amador, Butte, Calaveras, Colusa, Contra Costa, Del Norte, El Dorado, Fresno, Glenn, Humboldt, Imperial, Inyo, Kern, Kings, Lake, Lassen, Los Angeles, Madera, Marin, Mariposa, Mendocino, Merced, Modoc, Mono, Monterey, Napa, Nevada, Orange, Plumas, Riverside, Sacramento, San Benito, San Bernardino, San Diego, San Francisco, San Joaquin, San Luis Obispo, San Mateo, Santa Barbara, Santa Clara, Santa Cruz, Shasta, Siskiyou, Solano, Sonoma, Stanislaus, Sutter, Tehama, Trinity, Tulare, Tuolumne, Ventura, Yolo.

Texas counties with USDA records: Archer, Bandera, Bastrop, Bell, Bexar, Brewster, Brown, Burnet, Callahan, Childress, Comanche, Concho, Crane, Crockett, Crosby, Culberson, Dallas, Dickens, Ector, Edwards, Ellis, Erath, Garza, Gray, Grayson, Hardeman, Hidalgo, Howard, Johnson, Jones, Kendall, Kerr, Kimble, Knox, Lamb, Lampasas, Lubbock, Maverick, McLennan, Menard, Mills, Moore, Motley, Oldham, Pecos, Presidio, Randall, Robertson, Runnels, Schleicher, Shackelford, Sutton, Tarrant, Taylor, Terrell, Tom Green, Travis, Upton, Ward, Wichita.

Colorado counties with USDA records: Arapahoe, Archuleta, Boulder, Chaffee, Custer, Delta, El Paso, Fremont, Garfield, Huerfano, Jefferson, La Plata, Larimer, Las Animas, Mesa, Moffat, Montezuma, Montrose, Otero, Teller, Yuma.

Names, range and relatives

Native status by region (USDA PLANTS): Alaska: Introduced; Canada: Introduced; Greenland: Introduced; Hawaii: Introduced; Lower 48 states: Introduced.

County records: USDA PLANTS lists it in 641 counties across 46 states; the most are in Texas (60), California (54), Virginia (51).

Other Erodium on Bloomipedia (2): Mediterranean stork's-bill, Musk stork's-bill.

More from the Geraniaceae family (11 on Bloomipedia; most observed first): Wild geranium, Herb robert, Carolina crane's-bill, Dove's-foot crane's-bill, Richardson's geranium, Sticky geranium, Pinewoods geranium, Shining crane's-bill.

More California flowers

Mediterranean stork's-bill (Erodium botrys)

Mediterranean stork's-bill

Erodium botrys

Introduced

🌼 Blooms in CA: March–May
Musk stork's-bill (Erodium moschatum)

Musk stork's-bill

Erodium moschatum

Introduced

🌼 Blooms in CA: February–May
California poppy (Eschscholzia californica)

California poppy

Eschscholzia californica

★ CA state flowerNative

🌼 Blooms in CA: March–May

Sources