Populus deltoides

Populus deltoides, the eastern cottonwood, has a recorded place in several North American medicinal traditions. In the Cherokee homeland of the southeastern United States, the inner bark has been prepared as a mild tea to reduce fever and calm digestive upset (Moerman, 1998). Among the Iroquois of the northeast, women took an inner bark infusion during the postpartum period to manage bleeding and ease uterine cramping (Moerman, 1998). Blackfoot communities in the northern Plains used cottonwood bark and buds as an external poultice on swellings, bruises, and arthritic joints (Johnston, 1970; Kindscher, 1992). In each case the preparation involved either short infusions or compresses made directly from the plant part, and the accounts explicitly specify that Populus deltoides was the cottonwood in use (Moerman, 1998; Johnston, 1970).

In practice, a modest fever tea can be prepared safely using the inner bark. Simmer 3–5 g of dried, powdered inner bark with 250–300 ml of water for 10–12 minutes, then cool and strain. Drink half a cup (about 120 ml) no more than two to three times per day, stopping if stomach upset occurs; avoid use in pregnancy due to the bark’s historical uterine effects and the potential for aspirin-like sensitivity in salicylate-sensitive individuals (Moerman, 1998; Henry et al., 2022).

The plant is rich in phenolic glycosides that plausibly account for its traditional actions. The inner bark contains salicin and related salicylate derivatives such as salicin β-D-glucoside, populin (salicin benzoate), and tremulacin; it also yields flavonoids, phenolic acids, and terpenoids including cinnamic acids and sesquiterpene lactones (Watson, 2009; Kowalski et al., 2017; Apáti et al., 2014). These compounds are well established for Populus deltoides and together with flavonoids support the plant’s reputed anti-inflammatory and mild analgesic effects (Watson, 2009; Kowalski et al., 2017).

Cottonwood bark remains an active ingredient in some herbal supplements and topical preparations, and ongoing work explores its standardized extracts for standardized salicylate content and antioxidant profile, reflecting both modern interest and continued use in customary practice (Henry et al., 2022; Kowalski et al., 2017).

Common products:
Populus deltoides is used as a fast-growing fiber crop for pulp and paper. Wood chips and short-rotation biomass are used for energy (combustion, chip/pellet fuel).

Industrial and craft applications:
Lumber, pallets, crates, and boxes; engineered products such as particleboard, medium-density fiberboard (MDF), and hardboard. Pulpwood is processed by kraft, sulfite, and soda processes into printing/writing papers, containerboard, and tissue.

Food and beverages (non-medicinal):
Not reported.

Colorants and tanning:
Not reported.

Wood and fiber:
Heartwood and sapwood; bast fiber not a commercial product. Uses include construction/packaging lumber and engineered wood; fiber used in mechanical and chemical pulps for graphic papers, tissue, and packaging.

Fragrance and cosmetics:
Not reported.

Properties relevant to use:
Fast juvenile growth and short rotation capacity; wood specific gravity ≈0.40–0.45 (USDA Forest Service; Wood Handbook). Decay resistance is low to moderate. Hardwood kraft pulps exhibit favorable strength properties at low refining loads; sulfite/soda pulping yields suitable brightening and chemical recovery characteristics.

Standards and regulation:
Timber and engineered wood follow national structural grading rules (e.g., ALSC Softwood Lumber Standard). Forest management and chain-of-custody often follow FSC or PEFC frameworks. Pulp and paper meet relevant industry and product standards (e.g., paper grade classifications, packaging standards).

Sustainability and sourcing:
Widely cultivated in fast-rotation plantations and natural stands in North America. Sustainability depends on site selection, certified management (FSC/PEFC), and responsible harvest planning. Key issues are monoculture risk, invasive tendencies in floodplains, and habitat impacts; mitigation involves mixed plantings and riparian buffers.

References: USDA Forest Service Wood Handbook; USDA Forest Service species fact sheet (Populus deltoides); American Lumber Standard Committee; International Tropical Timber Organization; Forest Stewardship Council; Programme for the Endorsement of Forest Certification; NSF/ANSI 305 for personal care products.

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