I

Two plants. Two tissues.
Two histories.

A label reads as chemistry. Milligrams. Compound names. Latin and Greek roots. The compact, technical surface of a finished formulation. But behind two of the lines on the label of Codeage Liposomal NMN Platinum, the source is older than chemistry — older than the word supplement, older than the idea that a molecule can be named at all.

The line for quercetin reads: from Japanese sophora concentrate (flower bud). The line for trans-resveratrol reads: from Japanese knotweed (root). Two plants. Two specific tissues — the bud of one, the root of the other. Each isolated, concentrated, standardized. Each carried forward into the capsule from a plant that, in another time and place, was something altogether different — an ornamental tree on a Beijing avenue, a hardy weed colonizing a riverbank in Yorkshire.

This is the article that walks behind the label. Two botanical portraits. Two source stories. Then the question of what it means to name the plant on the label at all.

II

The Japanese sophora —
tree of the avenues.

The plant on the first line has carried several names. To Western botany it has been known as Sophora japonica since the eighteenth century, when European naturalists first catalogued it from specimens cultivated outside its native range. More recently, taxonomists have moved it into its own genus, and the accepted binomial is now Styphnolobium japonicum. To the Chinese herbal tradition, in which it has been recorded for far longer, the plant is known as huái, and its flower bud — harvested before opening — is one of the named materials of the classical pharmacopoeia.

The tree itself is striking. It can reach twenty-five meters. It belongs to the legume family — a relative of the pea, the bean, the locust — and it bears the family's characteristic compound leaves and pendant clusters of pale, creamy flowers in late summer. In China and Korea, the species has been planted along temple grounds, palace avenues, and city streets for centuries; older specimens are still standing in Beijing today, some of them estimated to predate the Ming dynasty. The tree is so deeply associated with the cultivated landscapes of East Asia that the name japonicum reflects the botanical convention of where European naturalists first encountered the plant, not where it originated. Its native range almost certainly began in China.

The flower bud is the source of quercetin used in standardized extracts. Quercetin is a flavonoid — one of the family of plant pigments responsible for the yellows, oranges, and pale tones that mark many botanical tissues. It is found in apples, in onions, in capers, in red wine, in many of the foods the broader plant-compound literature has been cataloguing for decades. But the unopened flower bud of Styphnolobium japonicum contains it in a concentration that is unusual in the plant kingdom — high enough that the bud has been used as a standardized commercial source of the molecule for the modern supplement industry, and as an ingredient in traditional preparations for much longer than that.

III

The Japanese knotweed —
root of the riverbank.

The plant on the second line has a very different reputation. To Western botany it has gone by several names — Polygonum cuspidatum, Fallopia japonica, and, most currently, Reynoutria japonica. To gardeners in Britain and homeowners in the American Northeast, it is known simply as Japanese knotweed, and it has acquired a particular kind of fame: it is one of the most aggressive invasive plants on either continent. It can colonize a riverbank in a single season, push through asphalt, regenerate from a fragment of root no larger than a fingernail.

It arrived in Europe in the nineteenth century — brought back, by some accounts, by Philipp Franz von Siebold, the German botanist who collected widely in Japan and shipped specimens to the Royal Botanic Gardens at Leiden. From there it travelled, as a prized ornamental, into the gardens of Victorian Britain and on into the American landscape. Its hardiness — the very quality that made it desirable to nineteenth-century horticulture — is what has since made it ungovernable.

But the root of the same plant is one of the most studied botanical materials in the broader plant-compound literature. Reynoutria japonica root has been used in Chinese and Japanese herbal traditions for centuries under the name hu zhang or itadori. And it is, by some measure, the most concentrated known plant source of trans-resveratrol — the stilbene compound that the literature has more famously associated with the skin of red grapes and the wines pressed from them. The concentration in the knotweed root is substantially higher than in the grape. For the modern supplement industry, knotweed root is the standard botanical source from which standardized trans-resveratrol is extracted.

That same plant — a weed in one landscape, a pharmacopoeia material in another — appears on the label as a single italicized line.

IV

On naming
the source plant.

The convention of naming a source plant on the label is not universal. Many formulations list a compound without indicating where it was extracted from. Quercetin, on most labels, is just quercetin. Trans-resveratrol is just trans-resveratrol. The plant of origin disappears into the molecule. This is the chemistry convention — the assumption that an isolated compound is the same compound regardless of its source.

In some respects this is true. The molecule itself does not change. The structure is what it is, whether the quercetin came from an apple or a sophora bud, whether the resveratrol came from a grape or a knotweed root. But naming the plant is a different kind of disclosure. It tells the reader where to look in the natural world to find what is in the capsule. It situates the molecule in a botanical lineage rather than an industrial one. Findings on these compounds described in the literature have been examined independently of Codeage and have not involved any Codeage product at any phase of study design — but the plants themselves are a matter of record, with histories that long predate any of that work.

For an institution whose method is, in one sense, an editorial method — the choice of which compounds to bring into a formulation, the choice of which sources to standardize against — naming the plant is also a statement of position. The chemistry is not separate from the plant. The plant is not separate from the place it came from, the tradition it appears in, the tissue it was harvested as. To name Styphnolobium japonicum on the label is to name a tree, an avenue, a flower bud. To name Reynoutria japonica is to name a root, a riverbank, a tradition of itadori. The molecules sit on the label as numbers. The plants sit behind them as plants.

That is the choice the formulation makes — and the reason this article exists alongside the label.