Flower profile

Redstem stork's-bill

Erodium cicutarium

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 11 states, and across the U.S. it's most often seen in bloom in February–May.

49states

11of our state lists

60,024U.S. sightings*

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

On our lists for: Arizona, Colorado, Delaware, Idaho, Kansas, Nevada, New Mexico, Oklahoma, 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.
From Wikipedia's article Erodium cicutarium, CC BY-SA 4.0.

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 Texas, most iNaturalist sightings of it in flower come in January–May. ^iNaturalist
In Colorado, most iNaturalist sightings of it in flower come in March–June. ^iNaturalist
iNaturalist has 10,205 research-grade sightings of it in Texas, ranking #53 among the 109 flowers on our Texas list. ^iNaturalist
iNaturalist has 4,565 research-grade sightings of it in Colorado, ranking #24 among the 110 flowers on our Colorado list. ^iNaturalist
iNaturalist has 3,056 research-grade sightings of it in Utah, ranking #5 among the 109 flowers on our Utah list. ^iNaturalist

State flower gift ideas

This one is a regulated invasive plant, so here are state flower gifts instead.

🌱 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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State flower print
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Birth-flower necklace
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Wildflower seed favors
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Botanical tea towel
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Pressed-flower frame
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Flower-garden mug
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When does it bloom?

Flowering records by month across the U.S. (iNaturalist research-grade observations marked “Flowering”) (16,957 records)

Bloom time in each of our 11 states

State	Type	Peak bloom	Sightings*
Texas	Introduced	January–May	10,205
Colorado	Introduced	March–June	4,565
Utah	Introduced	February–May	3,056
Arizona	Introduced	January–December	2,692
Washington	Introduced	March–June	2,643
New Mexico	Introduced	February–June	1,575
Idaho	Introduced	February–October	1,533
Nevada	Introduced	February–June	1,166
Oklahoma	Introduced	February–May	700
Kansas	Introduced	few records	290
Delaware	Introduced	February–June	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
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}
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.
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}
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.
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}
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.
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}
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.
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}
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.

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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.

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.

Utah counties with USDA records: Beaver, Box Elder, Cache, Carbon, Daggett, Davis, Duchesne, Emery, Garfield, Grand, Iron, Juab, Kane, Millard, Morgan, Piute, Rich, Salt Lake, San Juan, Sanpete, Sevier, Summit, Tooele, Uintah, Utah, Wasatch, Washington, Wayne, Weber.

More Texas flowers

Wild geranium

Geranium maculatum

Native

🌼 Blooms: April–June

Herb robert

Geranium robertianum

Introduced

🌼 Blooms: April–October

Dove's-foot crane's-bill

Geranium molle

Introduced

🌼 Blooms: March–May

Sources

USDA, NRCS. PLANTS Database, profile ERCI6.
iNaturalist, Erodium cicutarium: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 17, 2026.
Wikipedia, Erodium cicutarium (lead quoted under CC BY-SA 4.0).
Texas: Texas endangered and threatened plants (31 Tex. Admin. Code § 69.8), as listed by Texas Parks and Wildlife.
Texas: Texas noxious and invasive plant list (4 Tex. Admin. Code § 19.300(a)).
Colorado: Colorado noxious weed lists A, B and C (8 CCR 1206-2, eff. May 15, 2025).
Utah: Utah noxious weed list (Utah Admin. Code R68-9-3).
Arizona: Arizona Native Plant Law protected plants (Ariz. Admin. Code R3-3 Art. 11, App. A, eff. Feb. 2, 2025).
Arizona: Arizona prohibited noxious weeds (Ariz. Admin. Code R3-4-245).
Washington: Washington State noxious weed list (WAC 16-750-005, -011, -015).
New Mexico: New Mexico state endangered plant species (19.21.2.9 NMAC).
New Mexico: New Mexico Noxious Weed List (NM Department of Agriculture, updated June 2020).
Idaho: Idaho noxious weeds (IDAPA 02.06.09, Section 220).
Nevada: Nevada fully protected plants, critically endangered (NAC 527.010).
Nevada: Nevada noxious weeds (NAC 555.010).
Oklahoma: Oklahoma Noxious Weed Law (2 O.S. § 3-220).
Kansas: Kansas noxious weeds (K.A.R. 4-8-44, as amended 2026).
Delaware: Rare and Uncommon Plants of Delaware (DNREC, 2024; informational, Delaware has no state plant-protection list).
Delaware: Delaware Invasive Plant List (3 Del. Admin. Code § 806-3.0).
USFWS, ECOS species database (ESA listing check), October 17, 2026.
NatureServe Explorer, Erodium cicutarium (global and state ranks).
Edibility and toxicity: no source found (marked "not well documented").
Photo: Kathy Richardson via iNaturalist · CC BY 4.0 · resized.