Plants

Cyperus rotundus (Rhizome)

MUSTA (Rhizome)
Musta consists of dried rhizome of Cyperus rotundus Linn. (Fam. Cyperaceae); occurring throughout the country, common in waste grounds, gardens and roadsides, upto an elevation of 1800 m.

SYNONYMS –
Sansk. : Mustaka, Varida
Assam. : Mutha, Somad Koophee
Beng. : Mutha, Musta
Eng. : Nut Grass
Guj. : Moth, Nagarmoth
Hindi. : Motha, Nagarmotha
Kan. : Konnari Gadde
Kash. : —
Mal. : Muthanga, Kari Mustan
Mar. : Moth, Nagarmoth, Motha, Bimbal
Ori. : —
Punj. : Mutha, Motha
Tam. : Korai, Korai-Kizhangu
Tel. : Tungamustalu
Urdu. : Sad Kufi

DESCRIPTION –

a) Macroscopic:
Drug consists of rhizome and stolon having a number of wiry roots, stolon 10-20 cm long having a number of rhizomes, crowded together on the stolons, rhizomes bluntly conical and vary in size and thickness, crowned with the remains of stem and leaves forming a scaly covering, dark brown or black externally, creamish-yellow internally; odour, pleasant.

b) Microscopic:
Rhizome shows single layered epidermis, followed by 2-6 layers, suberised sclerenchymatous cells; epidermis and outer sclerenchymatous layers filled with dark brown content; ground tissue of cortex consists of circular to oval, thin-walled, parenchymatous cells with small intercellular spaces; a few fibro-vascular bundles present in this region; endoderm is distinct and surrounding the stele; wide central zone beneath endodermis, composed of circular to oval, thin-walled, parenchymatous cells with intercellular spaces, numerous collateral, closed, vascular bundles surrounded by bundle sheath, scattered in this region; vessels narrow having simple reticulate, and scalariform thickening and oblique pore; simple round to oval starch grains measuring 6-28 µ in dia., a number of pigmented cells filled with reddish-brown content, present  throughout the cortex and stele.
Powder – Creamish-brown; shows reddish-brown cells, reticulate and simple pitted vessels; fibre-like, closely packed sclerified cells, narrow vessels with scalariform thickness and oblique pore from the remnants of leaves simple, round to oval, starch grains, measuring 6-28 µ in diameter.


CONSTITUENTS
– Volatile Oil

PROPERTIES AND ACTION –

Rasa : Katu, Tikta, Kashaya
Guna : Laghu, Ruksha
Virya : sita
Vipaka : Katu
Karma : sothahara, Dipana, Grahi, Krimighna, Pacana, Vishaghna, Pittakaphahara, Sthoulyahara, Trishnanigrahana, Tvakadoshahara, Jvaraghna

IMPORTANT FORMULATIONS – Musakarishta, Mustakadi Kvatha, Asokarishta, Mustakadi Churna, Mustakadi, Mustakadi Lehya, Dhamya Pancaka Kvatha Churna, Piyushavalli Rasa, Gulmakatanala Rasa, Mahalakshadi Taila, sadangapaneeya

THERAPEUTIC USES – Agnimandya, Ajerna, Trishna, Jvara, Sangrahani, Swasha, Kasa, Mhutrakricchra, Vamana, Stanyavikara, Sutikaroga, Atisara, Amavata, Kriimiroga
DOSE – 3-6 g. (Powder).
20-30 ml. (Kwatha).