Eden Apothecary · Herb Profile
Cyperus rotundus
Also known as Musta, Nagarmotha, Xiang Fu
Pronounced Musta: MOOS-tah. Nagarmotha: nah-gar-MOH-tah. Cyperus rotundus: sy-PEER-us roh-TUN-dus. Xiang Fu: shyahng-foo.
Cool, dry, and dispersing: an aromatic, bitter rhizome that uncoils knotted Liver Qi and cramping menstrual and digestive pain, drains damp-heat and low fever, and firms a loose, damp bowel.
Avoid in pregnancy except under qualified professional supervision. Cyperus rotundus (Xiang Fu) is a strong Qi- and Blood-moving herb used specifically to regulate, promote, and unblock menstruation, and it contains sesquiterpenes with estrogen-modulating (estrogenic and antiestrogenic) activity, so the conservative modern position in the practitioner literature is to avoid it in pregnancy. Some classical TCM formulas do use small, supervised doses for morning sickness or an unsettled pregnancy, which is precisely why unsupervised self-use should be avoided. Sources: Bensky, Clavey and Stoger, Chinese Herbal Medicine: Materia Medica (3rd ed.); Chen and Chen, Chinese Medical Herbology and Pharmacology.
Insufficient modern data; use only under professional guidance. In Ayurveda the rhizome is classed as stanya-shodhana, a corrector of vitiated breast milk, and it is traditionally given to nursing mothers, and some Chinese sources use it to move stagnation affecting lactation, so short traditional culinary or decoction amounts have a long record of use. However, there are no formal modern lactation safety studies, so therapeutic doses in breastfeeding should be taken only under a qualified practitioner. Source: Ayurvedic Pharmacopoeia of India (Musta) for traditional use; no modern human lactation data located.
No formal modern pediatric safety data for concentrated extracts. Traditionally, a mild decoction of the rhizome has a long history of use for infant and childhood diarrhea, colic, and fever in Ayurveda, given in small, dilute amounts. For medicinal use in children, use only low, short-term doses of simple traditional preparations under professional guidance; avoid concentrated extracts and essential oil. Source: Ayurvedic Pharmacopoeia of India (Musta), traditional pediatric use; no modern pediatric trials located.
An aromatic, drying, Qi-dispersing rhizome: in Yin, Blood, or fluid deficiency, or in the thin dry depleted constitution, prolonged or high-dose use can aggravate dryness and depletion. Because it strongly regulates and moves menstruation and shows estrogen-modulating activity, it is a herb for the reproductive system that should be used deliberately, not casually, around fertility, pregnancy, and hormone-sensitive conditions. It has documented blood-sugar-lowering activity, relevant in diabetics.
Pregnancy (see safety fields: a menstrual regulator and Qi and Blood mover). Marked Yin or Blood deficiency with dryness and heat. Known hypersensitivity to Cyperus or other sedges. Use caution in hormone-sensitive conditions given estrogen-modulating constituents, and in diabetics on glucose-lowering drugs.
No conservation concern. Cyperus rotundus is regarded as one of the world's most widespread and invasive weeds (purple nutsedge), abundant across warm regions and difficult to eradicate from farmland. It is not listed by United Plant Savers. Harvesting the tubers poses no sustainability risk and can be ecologically beneficial where the plant is a cropland pest; source from clean, uncontaminated ground given its habit of colonizing disturbed and polluted soils.
Not named as such in canonical Scripture. Its close relative Cyperus papyrus is the bulrush and paper reed of the Bible (the ark of bulrushes, Exodus 2:3; Job 8:11). Cyperus rotundus tubers are among the oldest documented plant medicines and foods, recovered from ancient Egyptian and Near Eastern sites, and Dioscorides describes kypeiros (Cyperus) in De Materia Medica (Book I) as an aromatic, warming, diuretic root of the ancient Mediterranean pharmacy. Its principal living traditions are Ayurveda (Musta, Mustaka, Nagarmotha) and Chinese medicine (Xiang Fu).
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