
Ostrya virginica
Also known as Ironwood, Leverwood, American hop-hornbeam, Iron-wood, Lever-wood.
Ostrya virginiana, the American hop hornbeam, is a small understory tree of eastern North American woodlands, related to the hazels and birches, named for its hop-like fruiting clusters. The physiomedical and eclectic traditions used the inner bark and heartwood as a bitter, warming tonic and antiperiodic, placing it among the tissue-restoring agents given for depleted, feverish, or scrofulous constitutions. It never became a major herb of commerce and is little used today, remaining chiefly of historical interest.

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Ask HerbertLow-grade, recurring intermittent fever in a weak, debilitated patient with poor appetite
Chronic wasting with pale, flabby, atonic tissue and slow, sluggish digestion
Pregnancy: Avoid in pregnancy due to absence of safety data rather than any known specific risk.
Breastfeeding: Avoid in lactation due to absence of safety data.
The record lists 2 contraindications; open the plate in the library to read them in full.
Nineteenth century physiomedical writers reached for hop hornbeam bark in patients whose vitality had been worn down by recurring low fevers, poor appetite, and general debility, particularly where the tissues seemed lax and atonic rather than tense or inflamed. It was classed with the slow, sustained bitter tonics rather than the sharp stimulating ones, meant to be given over weeks rather than days, often alongside other alteratives for scrofulous or wasting conditions. Preparation was traditionally as a decoction of the shaved bark or heartwood chips, simmered gently, or as a fluid extract. Because so little modern work exists on this plant, it is reasonable to treat it as a mild, food-like bitter tonic rather than a specific remedy, and to favor better-documented bitters such as gentian or barberry where a comparable action is needed with a firmer evidence base.
| Preparation | As written | Metric |
|---|---|---|
| Decoction | 15-30 g dried inner bark or wood chips simmered gently, taken across the day | 15000-30000 mg |
| Tincture (1:5) | 2-5 mL three times daily | 2-5 mL |
| decoction | Dose of the decoction, 1 or 2 fluid ounces, 3 or 4 times a day; of the fluid extract, 1 fluid drachm. | 59.15-59.15 mL |
Doses are reproduced from the sources for practitioners and are not a recommendation for any person.
Overview. Ostrya virginiana, the American hop hornbeam, is a small understory tree of eastern North American woodlands, related to the hazels and birches, named for its hop-like fruiting clusters. The physiomedical and eclectic traditions used the inner bark and heartwood as a bitter, warming tonic and antiperiodic, placing it among the tissue-restoring agents given for depleted, feverish, or scrofulous constitutions. It never became a major herb of commerce and is little used today, remaining chiefly of historical interest.
Clinical Notes. Nineteenth century physiomedical writers reached for hop hornbeam bark in patients whose vitality had been worn down by recurring low fevers, poor appetite, and general debility, particularly where the tissues seemed lax and atonic rather than tense or inflamed.
Properties and Uses. The bark and the inner or heart-wood of this tree are used in medicine. They are stimulating and moderately astringing, slow and permanent in action, and quite bitter. Their action is of the alterative tonic order.
Description. Natural Order, Cupuliferae. In the same family with oak, beech, and chestnut. Slender trees, with very dense and tough wood, twenty to thirty feet high, in rich woods, with a brownish and finely furrowed bark, much like the carpinus, (blue beech.) Flowers dioecious; sterile in drooping aments, of about twelve stamens in the axil of a scale-like bract, filaments somewhat united; fertile numerous in a short terminal catkin, with small deciduous bracts, the involucre enlarging so as to form a sort of bladdery sac inclosing the fruit, and a number of these forming a cone-like strobile much resembling the strobile of the hop.
Drawn from Cook's Physio-Medical Dispensatory; King's American Dispensatory, 18th edition (Felter and Lloyd), and the Bountiful Herbs editorial.

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