Pistachio
\n| Pistachio |
\n |
\n| Scientific classification |
\n| \n\n |
| Species |
\n\nPistacia atlantica\n Pistacia chinensis\n Pistacia lentiscus\n Pistacia mexicana\n Pistacia taxiferum\n Pistacia terebinthus\n Pistacia vera\n Ref: ITIS 28806 2002-08-16\n |
\n
The
Pistachio tree (
Pistacia vera,
Anacardiaceae; sometimes placed in Pistaciaceae) is a small tree with
deciduous pinnate leaves native to southwestern
Asia (
Asia Minor,
Syria and
Palestine). From there, it has spread in cultivation to the
Mediterranean region and to
California. The apetalous flowers are unisexual and borne in panicles and the plants are dioecious.
One male can pollinate about 12 nut-bearing females. Trees are usually pruned to size but can grow to about 72
cm (30') in height. Males can reach 127 cm (50').
The
fruit is a
drupe, containing an elongated
seed with a striking light green kernel, having a very characteristic flavor. The kernels are used in
ice cream, confections such as
baklava, and are also eaten whole, roasted and salted. When the fruit ripens, the shells split open partially (see photo). This happens with an audible
pop, and legend has it that lovers who stand under a pistachio tree at night and hear the
nutss popping open will have good luck.
The shell of the pistachio is naturally a beige colour, but it is sometimes dyed red in commercial pistachios. Originally the red
dye was applied by importers to hide stains on the shells caused when the nuts were picked by hand. However most pistachios are now picked by machine and the shells remain unstained, making dyeing unnecessary (except that many consumers expect red pistachios).
Related to the true pistachio tree is
Pistacia lentiscus, a
shrub or small tree of the Mediterranean region with evergreen pinnately compound leaves. From it is obtained a
resin,
mastic, which is often chewed by the natives of
Turkey. Mastic is used in varnishes and in
medicine as a mild
stimulant. Another species is
Pistacia terebinthus, a native of the eastern Mediterranean countries, which yields China
turpentine.
Diseases
\nBotryosphaeria Panicle and Shoot Blight.\nHistory
\nPistachios have been a part of the human diet at least since the late paleolithic.
External links
\n*Pistacho seeds worldwide and sowing instructions.