American Bladdernut

American Bladdernut

Staphylea trifolia

Plant Type
Shrub (Deciduous)
Landscape Layer
Understory
Sun
⛅ Part Sun, ☁️ Shade
Moisture
💧 Regular
Soil
Clay, Loam, Sand, Silt, Calcareous
Bloom
April, May, June
Sociability
S3 – Small colonies

Pollinator Value

🐛 Larval Host
Orgyia leucostigma, Hyphantria cunea

S13+S15 2 verified Eastern NA

Ecology & Conservation

Proximity Score
0
Native Status
✅ Outaouais ✅ Ottawa ✅ QC ✅ ON
Closest Direction
Local
CEC Eco-Regions
5 – Northern Forests, 5.2 – Mixed Wood Shield, 5.2.3 – Algonquin/Southern Laurentians
Rarity Notes
Ranked S3 (Vulnerable) in Quebec where it is near its northern range limit, concentrated in the St. Lawrence Lowlands and Ottawa River corridor. Ranked S4 (Apparently Secure) in Ontario. Globally secure (G5). Not listed under SARA or COSEWIC.

S22 S3 QC, S4 ON, G5; S26 not SARA listed

Rarity Ranks
QC S3 – Vulnerable, ON S4 – Apparently Secure
Migration
Stable
Ecological Context
A shade-tolerant understory shrub of rich, moist floodplain forests, streamside thickets, and mesic deciduous woodlands. In the Ottawa-Gatineau region, it occurs on alluvial soils under canopies of Acer saccharinum, Tilia americana, and Celtis occidentalis, often on river island sandy deposits. It is ranked S3 (Vulnerable) in Quebec, where it reaches the northern edge of its range, but S4 in Ontario.

S4 moist deep woods, floodplain woods; S48 habitat records; S22 S3 QC, S4 ON; S7 floodplains and river banks

Permaculture & Companion Planting

Roles
Fortress/Barrier, Pollinator Attractor

S73/S29/S72 Evidence: Fortress/Barrier: S61 keyword match: thorns? (supporting signal only)] | Pollinator Attractor: S73 [MEDIUM]: S68 4 bee associations (threshold=3)]

Notes
A useful understory or edge shrub in woodland guild designs. Dense underground root systems provide erosion control on streambanks. Pest and disease resistant, tolerant of a wide range of soils, and deer-resistant. Functions well as a barrier or screening plant due to suckering habit, and provides spring pollinator resources.

S29 erosion control, pest resistant; S10 deer resistant; S4 insect and disease resistant

Medicinal Properties

Always consult a qualified healthcare provider before using any plant for medicinal purposes. The information provided is compiled from secondary sources for educational purposes only.

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Category
Antirheumatic, Dermatological Aid, Gynecological Aid, Pediatric Aid, Sedative

S28 Moerman categories

Notes
Iroquois used a compound infusion for rheumatism, an infusion of powdered bark as a wash for sore faces, a compound bark poultice for gynecological complaints, and a bark infusion wash as a sedative for children. Meskwaki considered the seeds sacred and used them in gourd rattles for medicine and dream dances.

S28 7 Moerman use records; S29 bark wash for sore faces

Edibility & Foraging

Never ingest a plant unless you have 100% certainty of its identity and have consulted multiple reputable sources. The information provided in the Localeaf Plant Database is compiled from secondary sources for educational and historical purposes only.

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❌ Not Edible   

Foraging Notes
PFAF gives an edibility rating of 3/5. Seeds can be eaten raw or cooked and have been compared to pistachios. A sweet edible oil can be obtained from the seeds and used for cooking. However, there is no documented history of common culinary use, and Moerman's ethnobotanical database records no food uses by Indigenous peoples.

S29 seed edible, oil; S28 no food category uses

Seed Source

  • Akène
  • Prairie Moon
American Bladdernut