Tuberous chervil

What it is

Chaerophyllum bulbosum L. is a biennial of the carrot family. Kew describes it as a plant of the temperate biome with Transcaucasia in its wider range, and lists C. caucasicum and C. posofianum among its synonyms. English names include tuberous chervil, turnip-rooted chervil and bulbous-rooted chervil. It is a different plant from the leafy salad herb called chervil.

The cultivated form is grown for its short, swollen root, which is cooked as a vegetable. In the Armenian records, by contrast, the young leaves are the food. Both uses sit in the same species.

A root vegetable of central Europe

A 2024 review of the plant in the Carpathian Basin reports cultivation across eastern and central Europe in the Middle Ages, and says the same could be true of the Carpathian Basin. Hungarian cookery books mention it from the 16th century, especially in Transylvanian cooking. Documented cultivation of the cultivated form, called chervil-beet, begins only in the mid-19th century.

Its popularity fell from the late nineteenth century. By the middle of the twentieth century it counted among the vegetables out of fashion, cultivation was sporadic and then fully neglected, and the review cites only one 21st-century record of gathering and eating it, in Transylvania. These points come from the review's abstract.

Leaves in Armenia

A study of wild plants sold in the markets of Yerevan, covering 2016 to 2019, records young leaves fried with eggs in a dish called tapakats mandak. The same study lists roots under a mixed plant-parts field and does not tie them to the leaf dish. A 2016 paper on Yezidi and Kurdish plant foods, from fieldwork in 2013 to 2015, lists the plant inside a grouped Chaerophyllum row with the printed names ghemi and mandek. That row cannot be assigned to this species alone, and the names should not be read as a single community's word.

A 2022 field paper calls the first-year leaf rosette valuable food, used fresh or canned, and says young second-year flowering stems are also used. It gives no canning method.

Cultivation at Ashtarak

The 2022 paper reports a three-year trial at Ashtarak, from 2019 to 2021. Autumn soil preparation used 35 to 40 tonnes of manure per hectare with phosphorus and potassium and deep ploughing. Seed was sown in spring on three-line tapes 45 cm apart, thinned at the second true leaf and again 15 to 20 days later to 7 cm, with a nitrogen dressing for leaf mass. The crop was cut as green mass before the rosette edges hardened, and six irrigations at 600 cubic metres are reported without an area or a statement of whether that is per event or in total.

Three ex-situ accessions came from Gegharkunik and Shirak. The paper gives no replication, yield, soil pH or site climate. No measured frost, heat or photoperiod response was found, and no container or greenhouse trial.

What the sources leave open

No culture, fermentation role or preservation mechanism is documented for this plant, and fresh or canned use is not a canning process. The reports give no household recipe with quantities, cooking time or storage limit, and the egg dish has none. A 2013 pharmacognostic abstract describes collecting the plant as medicinal material in May and June 2010 at three Armenian sites; that is medicinal research, not a crop calendar. The Armenian biodiversity overview asks for productivity and permissible-harvest data, and no species-specific conservation status or collection permission was found.