Unroasted nuts had hypoglycaemic effect in mice; roasted seeds, in contrast, had a hyperglycaemic effect. (Sharon M. Herr.)
Dosage Root—2—6 g powder. (API Vol. III.)
Calamus rotang Linn.
Synonym C. roxburghii Gruff. Family Palmae; Arecaceae.
Habitat Central and South India.
English Rotang, Rattan, Chair Bottom Cane.
Ayurvedic Vetra, Abhrapushpa. Siddha/Tamil Pirambu.
Action Astringent, antidiarrhoeal, anti-inflammatory (used in chronic fevers, piles, abdominal tumours, strangury), antibilious, spasmolytic. Wood—vermifuge.

Calendula officinalis Linn. 111

The plant is used in convulsions and cramps. The presence of a saponin in the stem, an alkaloid in the leaves and a flavonoid in the root is reported.

Calamus tenuis Roxb.

Synonym C. amarus Lour. Family Palmae; Arecaceae.

Habitat The sub-Himalayan tract from Dehra Dun to Assam.
English Bareilly Cane.
Ayurvedic Vetra (var.) (Vetasa, Salix caprea Linn., is a different drug).
Action See C. rotang.
Calamus travancoricus
Bedd. ex Hook. f.
Family Palmae; Arecaceae.
Habitat Deccan peninsula, from Malabar to Travancore.

English Cane.

Ayurvedic Vetra.

Siddha/Tamil Pirambu.

Action Tender leaves are used in dyspepsia, biliousness and as an anthelmintic. See C. rotang.
Calendula officinalis Linn.
Family Compositae; Asteraceae.
Habitat Throughout India; wild in Punjab.
English Pot-Marigold, Marigold; Calendula.

Unani Zergul.

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