Scorzonera is a genus of flowering plants in the tribe Cichorieae, within the family Asteraceae (the daisy and sunflower family, order Asterales). The genus comprises herbaceous plants distributed across Europe, Asia, and Africa, with its greatest diversity centered in the Mediterranean region.
Members of Scorzonera are typically perennial herbs with taproots, linear to lanceolate leaves, and characteristic yellow (occasionally purple or white) ray florets arranged in terminal flower heads. The genus belongs to the chicory tribe (Cichorieae), whose members produce milky latex in their tissues — a trait prominent in the most economically important species.
The most widely known member, historically treated as Scorzonera hispanica and now reclassified as Pseudopodospermum hispanicum, is cultivated across Europe as a root vegetable commonly called black salsify or Spanish salsify. It produces a long, cylindrical taproot covered in a dark brown to black corky skin, with crisp white flesh that exudes a milky latex when cut. Belgium, France, and the Netherlands are the principal commercial producers.
The genus name has uncertain origins but is most likely traced to the Catalan word escurçonera (from escurçó, meaning viper), reflecting a historical belief that the roots served as an antidote to snake venom. An alternative derivation points to Italian scorza negra ("black bark"), describing the dark peel of the root.
Scorzonera species occupy nutrient-poor soils, dry pastures, rocky slopes, and limy or marly substrates across temperate zones. The larvae of the nutmeg moth (Hadena confusa) are recorded feeding on plants in this genus.
Etymology
The genus name Scorzonera has an uncertain origin. The most widely accepted derivation traces it to the Catalan word escurçonera, from escurçó (viper), reflecting the historical belief that the roots served as an antidote to snake bites — a reputation noted as early as 1575 by Leonhard Rauwolf in Aleppo. An alternative explanation links it to Italian scorza negra meaning "black bark" or "black peel", describing the dark outer skin of the taproot.
Distribution
Species of Scorzonera are found across Europe, Asia, and Africa, with the center of diversity in the Mediterranean region. The most cultivated member is native to Southern Europe and the Near East, and is grown commercially primarily in Belgium, France, and the Netherlands, with significant production also in Germany.
Ecology
Scorzonera species grow on nutrient-poor soils, dry pastures, rocky areas, thickets, and calcareous or marly substrates in temperate zones. The larvae of the nutmeg moth are recorded as feeding on plants in this genus.
Cultivation
The principal cultivated member (black salsify) is sown in early spring, preferably late April, directly into light-textured sandy soils with a pH of 5.8–6.5. Seeds remain viable for only 1–2 years and are sown at 1.5–2 cm depth with 30–50 cm row spacing, at a density of approximately 50 plants/m². Harvesting takes place from November to March, with peak quality in late December. Commercial yields typically reach 15–20 tonnes per hectare. Roots are frost-hardy and can be stored through winter in cool, dark cellars.
Cultural Uses
The roots, young leafy shoots, and flowers of black salsify (Pseudopodospermum hispanicum, formerly Scorzonera hispanica) are all edible raw or cooked. The taproots contain inulin, which gives a mild sweetness and makes them suitable for people with diabetes. Historically the roots were believed to counteract snake venom. A traditional crystallized confection called "scorzonera sweet" (doce de escorzoneira) is made in Évora, Alentejo, Portugal, and is listed on the Slow Food Ark of Taste.
History
Black salsify was first described in Western literature by the botanist Leonhard Rauwolf, who saw it at the market in Aleppo, Syria in 1575. By 1612, François Gentil praised it in Le Jardinier Solitaire as "the best root which can be grown in gardens." The vegetable was recorded in England by 1683 and was celebrated in France by Quintyne in 1690 as "one of our chiefest roots." Large-scale cultivation developed in what is now Belgium from the mid-17th century onward.
