Primula veris subsp. macrocalyx
Primula veris (cowslip, common cowslip, cowslip primrose; syn. Primula officinalis Hill) is a herbaceous perennial flowering plant in the primrose family Primulaceae. The species is native throughout most of temperate Europe and Asia, and although absent from more northerly areas including much of northwest Scotland, it reappears in northernmost Sutherland and Orkney and in Scandinavia. This species frequently hybridizes with other Primulas such as Primula vulgaris to form false oxslip (Primula × polyantha) which is often confused with true oxslip (Primula elatior), a much rarer plant. Botanists have found at least twenty-five of these hybrid-forms in the Austrian Alps.
The common name cowslip may derive from the old English for cow dung, probably because the plant was often found growing amongst the manure in cow pastures. An alternative derivation simply refers to slippery or boggy ground; again, a typical habitat for this plant.
Primula veris is a variable evergreen or semi-evergreen perennial plant growing to 25 cm (10 in) tall and broad, with a rosette of leaves 5–15 cm long and 2–6 cm broad. The deep yellow flowers are produced in spring, in clusters of 10-30 blooms together on a single stem. Each flower is 9–15 mm broad. Red- and orange-flowered plants occur rarely but can be locally widespread in areas where coloured primula hybrids bloom at the same time as the native cowslip enabling cross-pollination.
Habitat and conservation
The cowslip is frequently found on more open ground than the primrose, including open fields, meadows, coastal dunes and clifftops. The plant suffered a decline due to changing agricultural practices throughout the 1970s and 1980s in Britain. It may therefore be rare locally, though where found it may be abundant. Additionally the seeds are now often included in wildflower seed mixes used to landscape motorway banks and similar civil engineering earthworks where the plants may be seen in dense stands. This practice has led to a revival in its fortunes.
The cowslip may be confused with the closely related Primula elatior (oxlip) which has a similar general appearance and habitat, although the oxlip has larger, pale yellow flowers more like a primrose, and a corolla tube without folds.
The roots of Primula veris contain different glycosides of 5-methoxysalicylic methyl ester, such as primeverin and primulaverin. In the dried crude root, their phenolic aglycones are responsible for the typical odor reminiscent of methyl salicylate or anethole, depending on the exact species. The dried roots contain significant amounts of triterpene saponins, such as primula acid I/II, while in the flower these constituents are located in the sepals, and the dominating constituents are flavonoids. Rare side effects of the saponins can be nausea or diarrhea while some of the phenolic constituents are possibly responsible for allergic reactions.
Cowslip leaves have been traditionally used in Spanish cooking as a salad green. Uses in English cookery include using the flowers to flavor country wine and vinegars; sugaring to be a sweet or eaten as part of a composed salad while the juice of the cowslip is used to prepare tansy for frying. The close cousin of the cowslip, the primrose P. vulgaris has often been confused with the cowslip and its uses in cuisine are similar with the addition of its flowers being used as a colouring agent in desserts.
English children's writer Alison Uttley in her story of family life on an English farm from the perspective of a 9-year-old farmer's daughter Susan "The Country Child" (1931) describes cowslips among favourite flowers of her heroine and mentions her participation in preparing raw material (gathering heaps of flowers and removing peeps from the plants) for making cowslip wine, a locally important process, given the higher status of this wine compared to the relatively inferior elderberry wine. After its initial preparation, cowslip wine "would change to sparkling yellow wine" offered in upscale "little fluted glasses" with a bisquit to important "morning visitors" of the farm: such visits were from the curate coming for subscriptions, from the local Squire (landowner) to have a friendly chat with the farmer, and from an occasional dealer (of their produce). This wine "was more precious than elderberry wine, which was the drink for cold weather, for snow and sleet".
Myth and folklore
This herb was already mentioned by Pliny the Elder for its early blooming attributes. Species from the genus Primula along with other ritual plants played a significant role in the pharmacy and mythology of the Celtic druids, likely as an ingredient of magical potions to increase the absorption of other herbal constituents. In the Middle-Ages it was also known as St. Peter's herb or Petrella and was very sought after by Florentine apothecaries. Hildegard von Bingen recommended the medicinal parts only for topical use but the leaves were also consumed as food. Other common names at the time were Herba paralysis, Verbascum, Primrose or Mullein leaves. It was frequently misidentified or confused with similar species from the genus Primula.
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- See CID 3038513 from PubChem for chemical structure
- See Merck Index monograph for chemical details
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- Uttley, Alison (1952). The Country Child. London: Faber and Faber. p. 156.
- ES Burgess (Jan. 1902). History of Pre-Clusian Botany in Its Relation to Aster pgs 70, 72, 246, 324, 332, 334/5, 435, 440. Retrieved 19 December 2015.
- Davidson, Alan. Oxford Companion to Food (1999), "Cowslip". p. 221 ISBN 0-19-211579-0
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