Bigleaf hydrangea

Conservation status

Federal (U.S. ESA)

Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. ^{USFWS ECOS}

NatureServe

Unknown We couldn't find this name in NatureServe Explorer. ^NatureServe

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.

Georgia

Not listed Not on Georgia protected plants (Ga. Comp. R. & Regs. 391-4-10-.09; a 2026 update is proposed). ^{Ga. R. 391-4-10-.09}

Alabama

No list Alabama has no state law listing endangered or threatened plants, so we show NatureServe's Alabama ranks instead.

North Carolina

Not listed Not on North Carolina Protected Plant Species List (02 NCAC 48F .0301). ^{02 NCAC 48F .0301}

South Carolina

No list South Carolina has no state law listing endangered or threatened plants, so we show NatureServe's South Carolina ranks instead.

Maryland

Not listed Not on Maryland threatened and endangered plants (COMAR 08.03.08.05, .06 and .08). ^{COMAR 08.03.08}

Florida

Not listed Not on Florida Regulated Plant Index (Fla. Admin. Code 5B-40.0055). ^{FAC 5B-40.0055}

Massachusetts

Not listed Not on Massachusetts Endangered Species Act list (321 CMR 10.90). ^{MESA list}

Oklahoma

No list Oklahoma has no state law listing endangered or threatened plants, so we show NatureServe's Oklahoma ranks instead.

Virginia

Not listed Not on Virginia endangered and threatened plant and insect species (2VAC5-320-10). ^2VAC5-320-10

Arkansas

No list Arkansas has no state law listing endangered or threatened plants, so we show NatureServe's Arkansas ranks instead.

Indiana

No list Indiana has no state law listing endangered or threatened plants (the DNR keeps a rare plant list, but it isn't regulatory), so we show NatureServe's Indiana ranks instead.

Louisiana

No list Louisiana has no state list of endangered or threatened plants separate from the federal list, so we show federal status and NatureServe's Louisiana ranks.

Tennessee

Not listed Not on Tennessee endangered plants (Tenn. Comp. R. & Regs. 0400-06-02-.04, Rare Plant Protection and Conservation Act). ^{TN rule 0400-06-02-.04}

Texas

Not listed Not on Texas endangered and threatened plants (31 Tex. Admin. Code § 69.8), as listed by Texas Parks and Wildlife. ^{31 TAC 69.8}

Vermont

Not listed Not on Endangered and Threatened Plants of Vermont (10 V.S.A. chap. 123; list of Feb 10, 2022). ^{Vermont E&T list}

New Hampshire

Not listed Not on New Hampshire Official Rare Plants List (Ncr 312, eff. Jan 1, 2020). ^{NH Ncr 312}

Arizona

Not listed Not on Arizona Native Plant Law protected plants (Ariz. Admin. Code R3-3 Art. 11, App. A, eff. Feb. 2, 2025). ^{AAC R3-3 App. A}

Colorado

No list Colorado has no state law listing endangered or threatened plants, so we show NatureServe's Colorado ranks instead.

Connecticut

Not listed Not on Connecticut Endangered, Threatened and Special Concern Plants (RCSA 26-306; 2015 list). ^{CT E/T/SC list}

Delaware

Not listed Not on Rare and Uncommon Plants of Delaware (DNREC, 2024; informational, Delaware has no state plant-protection list). ^{DE rare plants 2024}

Iowa

Not listed Not on Iowa endangered, threatened and special concern plants (Iowa Admin. Code r. 571-77.3). ^{IAC 571-77.3}

Idaho

No list Idaho has no state law listing endangered or threatened plants, so we show NatureServe's Idaho ranks instead.

Illinois

Not listed Not on Illinois List of Endangered and Threatened Flora (17 Ill. Adm. Code 1050), per the Endangered Species Protection Board's 2025 checklist. ^{IL E&T checklist 2025}

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.

Kentucky

Not listed Not on Kentucky endangered and threatened plant lists (400 KAR 3:040, eff. 2026). ^{400 KAR 3:040}

Maine

Not listed Not on Maine Rare Plant List (Maine Natural Areas Program, 2021). E and T are Maine's official endangered and threatened plants (12 M.R.S.); SC and PE are tracking categories. ^{Maine rare plant list}

Michigan

Not listed Not on Michigan endangered and threatened plants (Mich. Admin. Code R 299.1028, eff. March 20, 2023). ^{R 299.1028}

Minnesota

Not listed Not on Minnesota endangered, threatened and special concern plants (Minn. R. 6134.0300). ^{Minn. R. 6134.0300}

Missouri

Not listed Not on Missouri Wildlife Code endangered species (3 CSR 10-4.111), plants. ^{3 CSR 10-4.111}

Mississippi

No list Mississippi has no state law listing endangered or threatened plants, so we show NatureServe's Mississippi ranks instead.

North Dakota

No list North Dakota has no state law listing endangered or threatened plants, so we show NatureServe's North Dakota ranks instead.

Nebraska

Not listed Not on Nebraska threatened and endangered species (163 Neb. Admin. Code ch. 4, § 004). ^{163 NAC 4-004}

New Jersey

Not listed Not on New Jersey Endangered Plant Species List (N.J.A.C. 7:5C-5.1). ^{N.J.A.C. 7:5C-5.1}

New Mexico

Not listed Not on New Mexico state endangered plant species (19.21.2.9 NMAC). ^{19.21.2.9 NMAC}

Nevada

Not listed Not on Nevada fully protected plants, critically endangered (NAC 527.010). ^{NAC 527.010}

New York

Not listed Not on New York protected native plants (6 NYCRR § 193.3). ^{6 NYCRR § 193.3}

Ohio

Not listed Not on Ohio endangered and threatened plants (Ohio Adm. Code 1501:18-1-03, eff. Dec. 26, 2024). ^{OAC 1501:18-1-03}

Pennsylvania

Not listed Not on Pennsylvania classified native plants (17 Pa. Code Ch. 45, Subchapter B, as amended 2023). ^{17 Pa. Code Ch. 45}

Rhode Island

Not listed Not on Rhode Island Rare Plants 2016 (RI Natural History Survey, from the RI Wildlife Action Plan; informational, Rhode Island has no state plant-protection listing law). ^{RI rare plants 2016}

South Dakota

No list South Dakota's endangered and threatened list (ARSD 41:10:02) covers animals only, so we show NatureServe's South Dakota ranks for plants.

Utah

No list Utah has no state law listing endangered or threatened plants, so we show NatureServe's Utah ranks instead.

Wisconsin

Not listed Not on Wisconsin endangered and threatened species list (Wis. Admin. Code NR 27.03). ^{NR 27.03}

West Virginia

No list West Virginia has no state law listing endangered or threatened plants (only federally listed species are protected), so we show NatureServe's West Virginia ranks instead.

Checked October 17, 2026. Rankings and lists can change, so follow the links for the latest.

Can you eat it?

🌿 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.