
I am currently writing a thesis on the positive uses of so-called weed species. I am investigating three species in particular: Prosopis pallida (Kiawe) Hypophthalmichthys molitrix, (Silver carp), and Miconia calvescens (referred to in Hawaii simply as Miconia.)
There are many uses and functions for both carp and kiawe in a permaculture system. They are, of course, invasive in many areas outside of their native range. But once established they are not easily removed or controlled. So why not use them productively, and hopefully control them in some positive way, instead of branding them a nuisance or a problem?
I think a good example of this approach is how many permaculturists use and regard dandelions (T. officinale and T. erythrospermum). Every part of the plant is used in a positive way, even if many people view it as a weed or pest. In using the plant, permaculturists improve the land, earn a living, enrich their lives, and produce valuable products. In addition, dandelions are valued for many positive ecological functions. Dynamic accumulators, pioneer plants, apiaries, and food sources for wild animals.
Miconia, in Hawaii and many other tropical places, is viewed as an irredeemably bad plant. Academic literature generally discusses it in a negative light, primarily chronicling the removal or eradication of it. Large groups of botanical volunteers go out to destroy stands of the plant which, to be fair, is a terrible burden on any forest ecosystem outside of __________. It makes the place unenjoyable and tends to crowd out a lot of other, more desirable plants.
I cannot find a single positive use for Miconia on any website or in any electronic resource. Governmental policy is rather unkind to the plant; predictably, so is the research coming out of land grant colleges. One source describes effort toward producing pharmaceuticals from extracts of the plant.
The thesis discusses the positive benefits of inhabitory environmentalism. I.e., if a person lives and depends on a given piece of land for his or her survival and prosperity, they will generally treat it far better than otherwise, and will often improve degraded landscapes as well. One way to describe it as regenerative design
http://www.amazon.com/Design-Human-Ecosystems-Landscape-Resources/dp/155963720X#sipbody
http://www.oasisdesign.net/index.htm
Have you heard or know of any positive uses of miconia plants in productive, human-designed ecosystems?