Fragrant Sumac

Fragrant Sumac

Rhus aromatica

Plant Type
Shrub (Deciduous)
Landscape Layer
Shrub
Sun
☀️ Full Sun, ⛅ Part Sun, ☁️ Shade
Moisture
🏜️ Dry
Soil
Clay, Loam, Sand, Calcareous
Bloom
April, May, June
Sociability
S3 – Small colonies

Pollinator Value

🐛 Larval Host
Dichorda iridaria, Actias luna, Lophocampa caryae, Hyalophora cecropia, Marathyssa inficita, Paectes oculatrix, Sciota subfuscella, Marathyssa basalis, Nemoria rubrifrontaria

S13+S15 9 verified Eastern NA

🐝 Specialist Bee Host
Andrena (Thysandrena) brevipalpis

S17 Fowler pollen-specialist on Rhus; range CT-MA-NC-NH-NJ-NY-PA-RI-VA-VT-WV

❄️ Winter Food Source
Hairy red drupes persist on branches well into winter and serve as emergency food for birds. Avian Diet Database records include Ruffed Grouse, Wild Turkey, Northern Cardinal, Evening Grosbeak, Veery, Gambel's Quail, and Greater Sage-Grouse. The persistent fruit is especially important in late winter when other food sources are depleted.

S57 7 bird species; S61 berries persist into winter; S4 berries persist into March

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
Globally secure (G5) and nationally secure in Canada (N5). Apparently Secure in Ontario (S4) with widespread occurrence across southern and eastern counties. Not ranked in Quebec (SNR) but documented from multiple Outaouais localities including Gatineau Park and the Ottawa River islands. Not listed under SARA or COSEWIC.

S22 G5, N5, S4/SNR; S26 not SARA listed

Rarity Ranks
QC SNR – Not Ranked, ON S4 – Apparently Secure
Migration
Stable
Ecological Context
Fragrant sumac occupies dry, rocky, open habitats including limestone glades, sand prairies, sandy savannas, and thin-soiled bluffs. In the Ottawa-Gatineau region it is found on the Eardley Escarpment in open oak woodland on calcareous bedrock, and on sandy river islands. It colonizes disturbed sites such as old fields and road cuts, forming small thickets via rhizomatous spread.

S10 dry rocky prairies, old fields, open woods; S4 dry rocky habitats; S48 Gatineau specimens on Eardley Escarpment and river islands; S62 Constance Bay Sandhills, Lemieux Islands

Permaculture & Companion Planting

Roles
Fortress/Barrier, Insectary Plant, Pollinator Attractor

S73/S29/S72 Evidence: Fortress/Barrier: S61 keyword match: thorns? (supporting signal only)] | Insectary Plant: S64 NPPBI 'beneficial insects' flag] | Pollinator Attractor: S73 [HIGH]: S64 Xerces listed (source-classified)]

Notes
Fragrant sumac functions well on the sunny edge of woodland food forests, providing a low barrier and insectary shrub layer. Its rhizomatous root system stabilizes dry, rocky, or sandy slopes. Dioecious, so both male and female plants are needed for fruit production. Best planted in drifts or masses to mimic its natural colonial habit.

S29 Food Forest, soil stabilization; S4 colonizes to form thickets, plant en mass; S3 dioecious

Medicinal Properties

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Category
Astringent, Diuretic, Dermatological Aid, Antidiarrheal

S29 astringent, diuretic; S28 Natchez dermatological aid, Ojibwa antidiarrheal

Notes
Root bark, leaves, and fruits all used medicinally by multiple Indigenous peoples. The Natchez applied root poultices to boils. The Ojibwa used bark and berries in medicine ceremonies, and the Southern Ojibwa used a compound root decoction for diarrhea. The root bark is astringent and diuretic, used for diarrhea, dysentery, and externally for skin eruptions and sore throats. Fruits chewed for stomach aches and toothaches.

S28 Moerman ethnobotanical uses; S29 PFAF medicinal detail

Edibility & Foraging

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✅ Edible   

Foraging Notes
Berries can be soaked in hot or cold water for 10-30 minutes to make a refreshing lemonade-like drink; the mixture should not be boiled as this releases tannic acids. The fruit can also be dried and ground into powder for use in cakes and porridges. The Midoo pounded and ate the berries directly. The Lakota mixed the leaves with tobacco and smoked them.

S29 preparation details; S28 Moerman Food uses

Toxicity
⚠️ Moderate Toxicity

Not listed in Cornell poisonous plants database. Some unsubstantiated suggestions that the sap may cause skin rash in susceptible individuals, but this species is not in the toxic group of Rhus (now Toxicodendron). Non-poisonous species are distinguished by compound terminal panicles and fruits covered with acid crimson hairs, unlike the axillary panicles and smooth fruits of toxic relatives such as poison ivy.

S38 not listed; S29 sap rash unsubstantiated, distinguishing features described

Seed Source

  • Incredible Seed Co.
Fragrant Sumac