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'''Avartani''' is a shrub or small tree that . It can reach a height of grow up to 8 metres, but tall. It is more likely to be 4 metres or less in height. Gathered gathered from the wild and used locally as a medicine, the plant has also been experimentally cultivated as a fibre plant in India.

{{Uses|Diarrhea}}, {{Uses|Dysentery}}, {{Uses|Intestinal parasites}}.<ref name="Uses"/>

{{Common names|kn=aavarthiniAavarthini, edamuriEdamuri, bhootakaraluBhootakaralu, yedamuriYedamuri|ml=ishvaramuliIshvaramuli, itampirivalampiriItampirivalampiri, valampiriValampiri|sa=avartaniAvartani, mrgasrngiMrgasrngi, |ta=edampuriEdampuri, pirimurukkuPirimurukku, valampurikaiValampurikai|te=aadasamanthiAadasamanthi, adivichamanthiAdivichamanthi, peddasamanthiPeddasamanthi, shyaamaliShyaamali|hi=marodphaliMarodphali, marorphaliMarorphali|en=Indian screw tree}}

{{Leaf|Simple|alternateAlternate|5-12 x 3-8 cm, obovate to suborbicular, apex acute or acuminate, base cordate, margin irregularly crenate- serrate; 3-5-nerved at the base, scabrous above and stellately tomentose below; petioles to 1.2 cm long. }}<ref name="Leaf"/>

{{Flower|Bisexual|axillaryAxillary, solitary or in few-flowered cymes|Red|10|bracts Bracts 2-3 mm long, linear, 2 brown glands present in the axil of bracts; pedicel to 6 mm long. Calyx slightly yellow, persistent, tubular, splitting in to 5 irregular lobes; tube 1.5-2 cm long , densely stellate hairy without. Petals 5, unequal, 2-2.5 cm long, obovate, clawed, crimson, fading to pale blue. Staminal column 3-3.5 cm long, cylindric; stamens 10 ; staminodes 5. Ovary 2-2.5 mm long, placed at tip of gynophore, 5-lobed, 5-celled; ovules many; style 5; stigma subulate. }}

{{Fruit|Follicles|4-6 cm long|spirally Spirally twisted, stellate-tomentose, beaked||seeds Seeds 2-3 mm long, angular, black, wrinkled.}}

H. isora is easily propagated by seed, but vegetative propagation with stem cuttings is also possible. Seeds may be sown in a nursery and the seedlings planted out into the field later. Close planting, with e.g. distances of 60-90 cm, results in long, straight stems, whereas wider planting leads to profuse branching and thus lower fibre quality. <ref name="Cultivation details"/>