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Jimbu is one product that is native to the North-Central mountainous regions of Nepal, and is of high value to Upper Mustang Nepalese. Jimbu refers to two species of Allium, A. hypsistum and A. przewalskianum. Both species are perennial and bulbous flowering plants part of the Amaryllidaceous family. After harvest, people store Jimbu dried for later use since it is a seasonal herb (main harvest between June and September).

Uses
The above ground parts of these plants are used for spices and traditional medicines. The use of the spice is primarily for flavoring and seasoning, although it is considered nutritious by people in the Upper Mustang region. Almost all (90%) households in the Upper Mustang region use Jimbu as a spice in curries, soups, pickles, and meat items. Populations throughout the rest of Nepal and parts of Northern India consume the spice as well. Jimbu is also considered to be a high value medicinal plant collected from Nepalese hillside pastures. In Upper Mustang and other North-Central parts of Nepal, households use Jimbu to cure various medical illnesses such as flues, coughs, and stomach pains. This could be related to the isolated nature of these villages, living in regions that do not have basic health facilities.

Economic Benefits
After collection, the Jimbu plant is dried in a closed area, such as a shed, for several days before it is completely air-dried. About 3288 kilograms of air dried Jimbu was estimated to be collected in Upper Mustang during 2004, and almost all of that was used for to sell. Most household income in alpine regions of Nepal is from collection and trade in medicinal plants. In the Upper Mustang Region of Central Nepal, agriculture, wild-plant collection, and seasonal trading are the most important economic activities for local livelihoods. Most households in the Upper Mustang region are involved in the collection of wild Jimbu. The sale of Jimbu makes a significant (10%) contribution to the annual household income in Upper Mustang. The income derived from Jimbu is significantly influenced by the involvement of a household in the seasonal trade. On average, the annual income from Jimbu sale for households involved in the trade was about $70 USD in 2003 and 2004. People usually act as both the collectors and traders of Jimbu in order to maximize profits earned. The primary mode of trade for Jimbu was door-to-door selling, although it is common for traders to travel to Kathmandu and other parts of Nepal and India to take part in seasonal trade. This means that people involved in the Jimbu trade are currently looking for consumer markets to sell to, and would benefit from supplying to foreign markets. Furthermore, spices like Jimbu can be “high value, low volume cash crops”, and international trade in this product can enhance rural Nepalese incomes and livelihoods.

Availability and Practicality
There is a consistent availability of A. hypsistum, however A. przewalskianum was considered to be vulnerable in the 1990s. There are some agronomic constraints for Jimbu collected in the wild that contribute to the vulnerability of this product. One constraint is the degradation of the plants due to sheep, goat and other livestock grazing. This is mainly because wild Jimbu is generally found on communal land, and there is no active management to control access to the plants. One natural constraint to the availability of Jimbu is the reliance on rainfall, especially during the early summer months, which is critical for the growth and survival of the plant. There are no diseases known to the author of this paper that are directly affecting the Jimbu plants. Most of the hillside land surface within the Mustang region lacks vegetation, and the sandy soils can easily become eroded by wind, snow, and rain, resulting in challenges for local livelihoods and agriculture. The Jimbu plant species can be seen as an answer to erosion, as they grow in clumps in high-arid regions with sandy soils. Because of the remote, mountainous areas where Jimbu is found, collection mainly involves physically able and energetic people. This means that collection is not always practical for elders or physically unable people to take part in.

A Need for Management
There are currently no active management systems in Upper Mustang for the collection and trade in the Jimbu industry. Formal management systems like farmer groups and cooperatives are necessary in order to overcome the agronomic restraints of Jimbu, such as controlling livestock grazing. Farmer cooperatives can improve community organization for Jimbu collection and increase earnings through shared buying and selling in bulk. There are also few alternative systems for collecting Jimbu besides in the wild. This means that, through active management, further domestication can be seen as an opportunity to enhance production and development of the Jimbu industry. Sustainable collection of Jimbu can be further developed if rotational harvesting sites (crop rotation) are introduced both on communal and private land. Jimbu, along with other spices, does not require extensive inputs of cash, machinery, land or labor in order to profit from. This means that Jimbu can be planted in gardens or close proximity to a poorer Nepalese household in the Mustang Region, and especially on hillsides where the plants grow. A profitable crop near the household can benefit women in particular, mainly because it is easier for them to be involved and tend to the Jimbu plants.