Opuntia tuna
Opuntia tuna
Safety & Hazards
The plant has numerous minutely barbed glochids - these are barbed spines that are usually small to minute and are very sharp and brittle. The glochids are very easily dislodged when the plant is touched and can penetrate the skin where, because of their barbs, they become stuck and are very difficult to see and remove. They can cause considerable irritation and discomfort[ 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. , 1999 Title A natural history of the Sonoran Desert Publication Author Phillips S.J. & Comus P.W. Publisher University of California Press; Los Angeles, California Year 2000 ISBN 0-520-22029-3 Description ]. Opuntia species can contain quite high levels of oxalic acid, especially in older parts of the plant. Perfectly alright in small quantities, foods containing oxalic acid should not be eaten in large amounts since it can lock-up other nutrients in the food, especially calcium, thus causing mineral deficiencies. The oxalic acid content will be reduced if the plant is cooked. People with a tendency to rheumatism, arthritis, gout, kidney stones or hyperacidity should take especial caution if including this plant in their diet since it can aggravate their condition[ 238 Title Encyclopaedia of Herbs and their Uses. Publication Author Bown. D. Publisher Dorling Kindersley, London. Year 1995 ISBN 0-7513-020-31 Description A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant. , 1999 Title A natural history of the Sonoran Desert Publication Author Phillips S.J. & Comus P.W. Publisher University of California Press; Los Angeles, California Year 2000 ISBN 0-520-22029-3 Description ].
Botanical Description
Opuntia tuna is a spiny, succulent, evergreen, shrubby cactus with spreading branches and segmented stems, it can grow about 1 metre tall. Individual stem segments are fairly small, obovate to oblong, 8 - 10cm long, exceptionally to 16cm[ 426 Title Flowering Plants of Jamaica Publication Author Adams. C.D. Publisher University of the West Indies; Jamaica. Year 1972 ISBN Description A terse treatment of the flowering plants of Jamaica, with a botanical description of each plant, notes on habitat etc. , 1987 Title The Cactus Family Publication Author Anderson E.F. Publisher Timber Press; Portland, Oregon Year 2001 ISBN 0-88192-498-9 Description An excellent work, giving botanical descriptions of virtually all the cacti, together with their range (but not their habitats) and sometimes also a photo. it also contains a long chapter detailing the many uses of cacti and another on cultivation.. ]. The plant is harvested from the wild for its edible fruit and young stems, which are eaten locally. The plant is also sometimes cultivated and is grown as a living fence to mark out boundaries and exclude grazing animals[ 301 Title Cornucopia II Publication Author Facciola. S. Publisher Kampong Publications, California. Year 1998 ISBN 0-9628087-2-5 Description The second edition of an excellent guide to the edible uses of plants, though it does not give any details of cultivation etc. , 1783 Title Enciclopedia de las Plantas Útiles del Ecuador Publication Author de la Torre, L., Navarrete H., P. Muriel M., Macía M.J. & Ba Publisher Herbario QCA de la Escuela de Ciencias Biológicas de la Pontific Year 2008 ISBN 978-9978-77-135-8 Description ].