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Pistacia terebinthus
''Pistacia terebinthus'', known commonly as terebinth and turpentine tree, is a species of ''Pistacia'', native to the Canary Islands, and the Mediterranean region from the western regions of Morocco, and Portugal to Greece, western and southeast Turkey. In the eastern shores of the Mediterranean sea – Syria, Lebanon and Israel – a similar species, ''Pistacia palaestina'', fills the same ecological niche as this species and is also known as terebinth.
==Description==
It is a species of flowering plant belonging to the family Anacardiaceae (the cashew family). It is a small deciduous tree or large shrub growing to 10 m tall. The leaves are compound, 10–20 cm long, odd pinnate with five to eleven opposite glossy oval leaflets, the leaflets 2–6 cm long and 1–3 cm broad. The flowers are reddish-purple, appearing with the new leaves in early spring. The fruit consists of small, globular drupes 5–7 mm long, red to black when ripe. All parts of the plant have a strong resinous smell.
It is a dioecious tree, i.e. exists as male and female specimens. For a viable population both genders must be present. The oblong leaf is bright green, leathery, with 10 cm long or more with 3-9 leaflets. Leaves alternate, leathery and compound paripinnate (no terminal leaflet) with 3 or 6 deep green leaflets. They are generally larger and rounder than the leaves of the mastic, reminiscent of the leaves of carob tree. The flowers range from purple to green, the fruit is the size of a pea and turns from red to brown, depending on the degree of maturation. The whole plant emits a strong smell: bitter, resinous or medicinal. In the vegetative period they develop "galls" in a goat's horn shaped (from which the plant gets the name cornicabra, the common name in Spanish), that occur on the leaves and leaflets which have been bitten by insects. The species propagates by seeds and shoots. Although marred by the presence of galls, is a very strong and resistant tree which survives in degraded areas where other species have been eliminated. Pistacia terebinthus is a plant related to ''Pistacia lentiscus'', with which hybridizes frequently in contact zones. The cornicabra is more abundant in the mountains and inland and the mastic is usually found more frequently in areas where the Mediterranean influence of the sea moderates the climate. Mastic tree does not reach the size of the Pistacia terebinthus, but the hybrids are very difficult to distinguish. The mastic has winged stalks to its leaflets, i.e., they are flattened and side fins, whereas these stems in Cornicabra are simple. In the Eastern Mediterranean Coast, Syria, Lebanon and Israel, a similar species, ''Pistacia palaestina'', fills the same ecological niche of this species and is also known as turpentine. On the west coast of the Mediterranean, Canary Islands and Middle East, ''Pistacia terebinthus'' can be confused with ''Pistacia atlantica''.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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