Guizotia abyssinica

Botanical Description

Guizotia abyssinica is a stout, erect annual herb growing up to 2 metres tall[ 17 Title Flora of the British Isles. Publication Author Clapham, Tutin and Warburg. Publisher Cambridge University Press Year 1962 ISBN - Description A very comprehensive flora, the standard reference book but it has no pictures. , 200 Title The New RHS Dictionary of Gardening. 1992. Publication Author Huxley. A. Publisher MacMillan Press Year 1992 ISBN 0-333-47494-5 Description Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed. , 299 Title Protabase - Plant Resources of Tropical Africa. Publication Author Website http://www.prota.org Publisher Year 0 ISBN Description An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa. ]. The root system is well developed, with a taproot and many lateral roots, particularly in the upper 5cm[ 299 Title Protabase - Plant Resources of Tropical Africa. Publication Author Website http://www.prota.org Publisher Year 0 ISBN Description An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa. ]. Niger seed is often harvested as a source of a good quality oil; it also provides an edible seed, and has local medicinal uses. It has a history of cultivaion dating back to around 3,000 BC and is still often grown, especially in Africa and India, as an oil seed crop[ 2 Title Sturtevant's Edible Plants of the World. Publication Author Hedrick. U. P. Publisher Dover Publications Year 1972 ISBN 0-486-20459-6 Description Lots of entries, quite a lot of information in most entries and references. , 46 Title Dictionary of Economic Plants. Publication Author Uphof. J. C. Th. Publisher Weinheim Year 1959 ISBN - Description An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader. , 51 Title Flowers of the Himalayas. Publication Author Polunin. O. and Stainton. A. Publisher Oxford Universtiy Press Year 1984 ISBN - Description A very readable and good pocket guide (if you have a very large pocket!) to many of the wild plants in the Himalayas. Gives many examples of plant uses. , 269 Title Handbook of Energy Crops Publication Author Duke. J. Website https://hort.purdue.edu/newcrop/duke_energy/dukeindex.html Publisher - Year 1983 ISBN - Description Published only on the Internet, excellent information on a wide range of both temperate and tropical plants. ], it has also been cultivated in Germany[ 61 Title A Dictionary of Plants Used by Man. Publication Author Usher. G. Publisher Constable Year 1974 ISBN 0094579202 Description Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. Not for the casual reader. ]. Plants grown in Africa produce a better drying oil than plants from India, though it is still considered to be inferior to linseed oil (Linum usitatissimum) and is often used as an extender to that oil[ 332 Title The Useful Plants of West Tropical Africa. Publication Author Burkil. H. M. Publisher Royal Botanic Gardens; Kew. Year 1985 - 2004 ISBN Description Brief descriptions and details of the uses of over 4,000 plants. A superb, if terse, resource, it is also available electronically on the Web - see http://www.aluka.org/ ]. Several factors lend credence to fears that niger seed might become a pest if introduced into warm temperate areas:- grazing animals do not relish it; the plant tolerates poor soil and drought; it has few serious pests or diseases especially outside its native range; the seeds store for a year or more without deterioration; and the seeds mature 3 - 4.5 months after planting[ 269 Title Handbook of Energy Crops Publication Author Duke. J. Website https://hort.purdue.edu/newcrop/duke_energy/dukeindex.html Publisher - Year 1983 ISBN - Description Published only on the Internet, excellent information on a wide range of both temperate and tropical plants. ]. Arguing against its weed potential are the facts that it is a short day plant and therefore does not flower or set seed until daylight hours average 13 hours or less; it is self-sterile; and requires bees for pollination[ 269 Title Handbook of Energy Crops Publication Author Duke. J. Website https://hort.purdue.edu/newcrop/duke_energy/dukeindex.html Publisher - Year 1983 ISBN - Description Published only on the Internet, excellent information on a wide range of both temperate and tropical plants. ].