A new wild ginger discovered from the evergreen forest of Western Ghats of South India

Jan 06, 2012
This is the fruit of A. nilgiricum. Credit: Professor M. Sabu

Intensive botanical explorations for taxonomic studies on the members of the ginger family (Zingiberaceae) in India by V.P. Thomas and M. Sabu of the University of Calicut, have resulted in the discovery of an interesting species of Amomum (Cardamom) from Silent Valley National Park on the Western Ghats of Kerala.

The family consists of 53 genera and over 1,200 , many of which are widely used as spices, for medical purposes, or simply for decoration. Amomum Roxb. is the second largest genus within the Zingiberaceae, comprising about 150-180 species, including several types of cardamom. Widely distributed in Southeast Asia, the genus is represented by 23 species in India, mostly restricted to North-East India, South India and the Andaman-Nicobar Islands.

These are the flowers of A. nilgiricum. Credit: Professor M. Sabu

In the new species, the authors show some similarities with A. masticatorium, although the two are clearly distinct. The new plant's name refers to its locality, i.e. Nilgiri hills, a part of Western Ghats and one of the hotspots of the Indian subcontinent. The most notable feature of the plant is the presence of long ligules that reach up to 9 cm long and small flowers with a long corolla tube. Almost all parts of the plant are hairy.

It is a species (found above 1,200 m), and attempts to conserve it outside its natural locality were unsuccessful. The conservation status evaluation revealed that it falls under the critically endangered category of the International Union for Conservation of Nature, 2001. are to be carried out very urgently to recover the plant from extinction.

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More information: Thomas VP, Sabu M, Prabhu Kumar KM (2012) Amomum nilgiricum (Zingiberaceae), a new species from Western Ghats, India. PhytoKeys 8: 99-104. doi: 10.3897/phytokeys.8.2152

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