Flowering tree
Japanese stewartia
Stewartia pseudocamellia
Japanese stewartia (Stewartia pseudocamellia) is a tree in the Theaceae family.
🌷 Flowering tree
Japanese stewartia is a popular flowering tree. It's on our flower lists for 24 states.
–states where USDA records it
24Bloomipedia state lists include it
0U.S. sightings*
*iNaturalist research-grade observations, as of October 23, 2026. Planted garden trees are mostly excluded from research grade.
On our lists for: California, Connecticut, Delaware, Georgia, Illinois, Kentucky, Maine, Maryland, Massachusetts, Missouri, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oregon, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, Washington, Wisconsin
Quick look
Stewartia pseudocamellia, also known as Korean stewartia, Japanese stewartia, or deciduous camellia, is a species of flowering plant in the family Theaceae, native to Japan and Korea.
- It belongs to the Theaceae family. iNaturalist
When does it bloom?
Not enough flowering records on iNaturalist to chart yet.
Bloom time in the 24 states whose Bloomipedia list includes it
| State | Type | Peak bloom | Sightings* |
|---|---|---|---|
| New Hampshire | 🌷 Garden | no flowering records | 0 |
| California | 🌷 Garden | no flowering records | 0 |
| Connecticut | 🌷 Garden | no flowering records | 0 |
| Delaware | 🌷 Garden | no flowering records | 0 |
| Georgia | 🌷 Garden | no flowering records | 0 |
| Illinois | 🌷 Garden | no flowering records | 0 |
| Kentucky | 🌷 Garden | no flowering records | 0 |
| Massachusetts | 🌷 Garden | no flowering records | 0 |
| Maryland | 🌷 Garden | no flowering records | 0 |
| Maine | 🌷 Garden | no flowering records | 0 |
| Missouri | 🌷 Garden | no flowering records | 0 |
| North Carolina | 🌷 Garden | no flowering records | 0 |
| New Jersey | 🌷 Garden | no flowering records | 0 |
| New York | 🌷 Garden | no flowering records | 0 |
| Ohio | 🌷 Garden | no flowering records | 0 |
| Oregon | 🌷 Garden | no flowering records | 0 |
| Pennsylvania | 🌷 Garden | no flowering records | 0 |
| Rhode Island | 🌷 Garden | no flowering records | 0 |
| South Carolina | 🌷 Garden | no flowering records | 0 |
| Tennessee | 🌷 Garden | no flowering records | 0 |
| Virginia | 🌷 Garden | no flowering records | 0 |
| Vermont | 🌷 Garden | no flowering records | 0 |
| Washington | 🌷 Garden | no flowering records | 0 |
| Wisconsin | 🌷 Garden | no flowering records | 0 |
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
- State rare plant lists
- Not listed Not on the official rare plant list in 22 of our 24 states.
See each state
- New Hampshire
- Not listed Not on New Hampshire Official Rare Plants List (Ncr 312, eff. Jan 1, 2020). NH Ncr 312
- California
- Not listed Not on California state-listed endangered, threatened and rare plants (14 CCR § 670.2), per CDFW's CNDDB list (July 2026). CNDDB listed plants (July 2026)
- 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
- 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
- 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
- Kentucky
- Not listed Not on Kentucky endangered and threatened plant lists (400 KAR 3:040, eff. 2026). 400 KAR 3:040
- Massachusetts
- Not listed Not on Massachusetts Endangered Species Act list (321 CMR 10.90). MESA list
- Maryland
- Not listed Not on Maryland threatened and endangered plants (COMAR 08.03.08.05, .06 and .08). COMAR 08.03.08
- 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
- Missouri
- Not listed Not on Missouri Wildlife Code endangered species (3 CSR 10-4.111), plants. 3 CSR 10-4.111
- North Carolina
- Not listed Not on North Carolina Protected Plant Species List (02 NCAC 48F .0301). 02 NCAC 48F .0301
- 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 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
- Oregon
- Not listed Not on Oregon endangered and threatened plants (OAR 603-073-0070). OAR 603-073-0070
- 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
- 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
- Virginia
- Not listed Not on Virginia endangered and threatened plant and insect species (2VAC5-320-10). 2VAC5-320-10
- 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
- Wisconsin
- Not listed Not on Wisconsin endangered and threatened species list (Wis. Admin. Code NR 27.03). NR 27.03
- South Carolina
- No list South Carolina has no state law listing endangered or threatened plants, so we show NatureServe's South Carolina ranks instead.
- 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.
Checked October 23, 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 edibility or poison notes on its page)) say whether it's edible or poisonous for people. NC State Extension
For petsNot well documented
It isn't on the ASPCA plant list, and NC State Extension doesn't flag it for pets. For context only: ASPCA lists a related species, Stewartia ovata (“Mountain Camellia”), as non-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 has no state-by-state distribution for this name, so we can't map it yet.
Names, range and relatives
More from the Theaceae family (3 on Bloomipedia; most observed first): Japanese camellia, Sasanqua camellia, Franklin tree.
More New Hampshire flowers
Sources
- USDA PLANTS: no profile matched this name.
- iNaturalist, Stewartia pseudocamellia: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 23, 2026.
- Wikipedia, Stewartia pseudocamellia (lead quoted under CC BY-SA 4.0).
- State rare and invasive plant lists (44):
Show all 44 state lists
- New Hampshire: New Hampshire Official Rare Plants List (Ncr 312, eff. Jan 1, 2020).
- New Hampshire: NH Prohibited Invasive Species List (Agr 3800, Table 3800.1).
- 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).
- Connecticut: Connecticut Endangered, Threatened and Special Concern Plants (RCSA 26-306; 2015 list).
- Connecticut: Connecticut prohibited invasive plants (Conn. Gen. Stat. § 22a-381d).
- 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).
- Georgia: Georgia protected plants (Ga. Comp. R. & Regs. 391-4-10-.09; a 2026 update is proposed).
- Illinois: Illinois List of Endangered and Threatened Flora (17 Ill. Adm. Code 1050), per the Endangered Species Protection Board's 2025 checklist.
- Illinois: Illinois Official List of Exotic Weeds (17 Ill. Adm. Code 1100.30, Illinois Exotic Weed Act).
- Kentucky: Kentucky endangered and threatened plant lists (400 KAR 3:040, eff. 2026).
- Kentucky: Kentucky noxious weeds and invasive plants on state rights-of-way (KRS 176.051; species list from the Kentucky Transportation Cabinet).
- Massachusetts: Massachusetts Endangered Species Act list (321 CMR 10.90).
- Massachusetts: Massachusetts Prohibited Plant List (MDAR) (Text from MDAR's 2023 scientific-name PDF (mass.gov blocks automated downloads); 2024-2026 additions listed on the mass.gov page: Alnus glutinosa, Pyrus calleryana, Miscanthus sinensis, Aralia elata, Rhodotypos scandens, Symplocos paniculata.).
- Maryland: Maryland threatened and endangered plants (COMAR 08.03.08.05, .06 and .08).
- Maryland: Maryland Prohibited Invasive Plant List (COMAR 15.06.04.06; MDA, updated July 2026).
- Maine: 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: Maine Do Not Sell invasive plant list (01-001 C.M.R. ch. 273).
- Missouri: Missouri Wildlife Code endangered species (3 CSR 10-4.111), plants.
- Missouri: Missouri noxious weed list (2 CSR 70-45.005).
- North Carolina: North Carolina Protected Plant Species List (02 NCAC 48F .0301).
- North Carolina: North Carolina Noxious Weed List (02 NCAC 48A .1702) (the list names any non-native Lythrum; we apply it to purple loosestrife (Lythrum salicaria), which isn't native).
- New Jersey: New Jersey Endangered Plant Species List (N.J.A.C. 7:5C-5.1).
- New Jersey: New Jersey prohibited invasive plant species (Invasive Species Management Act; propagation banned from Jan 1, 2027, sale from Jan 1, 2030).
- New York: New York protected native plants (6 NYCRR § 193.3).
- New York: New York prohibited and regulated invasive species (6 NYCRR Part 575).
- Ohio: Ohio endangered and threatened plants (Ohio Adm. Code 1501:18-1-03, eff. Dec. 26, 2024).
- Ohio: Ohio invasive plant species (Ohio Adm. Code 901:5-30-01).
- Oregon: Oregon endangered and threatened plants (OAR 603-073-0070).
- Oregon: Oregon noxious weed quarantine, A and B weeds (OAR 603-052-1200).
- Pennsylvania: Pennsylvania classified native plants (17 Pa. Code Ch. 45, Subchapter B, as amended 2023).
- Pennsylvania: Pennsylvania Noxious Weed List (3 Pa.C.S. § 1519, PA Dept. of Agriculture) (PDA's page spells garlic mustard “Allaria petiolata”; we match it as Alliaria petiolata).
- Rhode Island: 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).
- South Carolina: South Carolina State Plant Pest List, plants (S.C. Code Regs. 27-135; Clemson Dept. of Plant Industry).
- Tennessee: Tennessee endangered plants (Tenn. Comp. R. & Regs. 0400-06-02-.04, Rare Plant Protection and Conservation Act).
- Tennessee: Tennessee Pest Plant List (Tenn. Comp. R. & Regs. 0080-06-24-.02).
- Virginia: Virginia endangered and threatened plant and insect species (2VAC5-320-10).
- Virginia: Virginia noxious weeds (2VAC5-317-20, Tier 1, 2 and 3).
- Vermont: Endangered and Threatened Plants of Vermont (10 V.S.A. chap. 123; list of Feb 10, 2022).
- Vermont: Vermont Quarantine List, Regulated Introduced Plant Species Rule (eff. June 16, 2026).
- Washington: Washington State noxious weed list (WAC 16-750-005, -011, -015).
- Wisconsin: Wisconsin endangered and threatened species list (Wis. Admin. Code NR 27.03).
- Wisconsin: Wisconsin invasive species rule (Wis. Admin. Code NR 40.04 prohibited, NR 40.05 restricted).
- USFWS, ECOS species database (ESA listing check), October 23, 2026.
- Edibility and toxicity: NC State Extension; ASPCA.
- Photo: wilderbombyx via iNaturalist · CC0 · resized.