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The great majority of conifer genera and species are evergreen, retaining their leaves for several (2–40) years before falling, but unusual deciduous conifers occur in five genera (Larix, Pseudolarix, Glyptostrobus, Metasequoia and Taxodium), shedding their leaves in autumn and leafless through the winter.
Larches are deciduous conifers in the genus Larix, of the family Pinaceae (subfamily Laricoideae).Growing from 20 to 45 metres (65 to 150 feet) tall, [1] they are native to the cooler regions of the northern hemisphere, where they are found in lowland forests in the high latitudes, and high in mountains further south.
Most conifers are monoecious, but some are subdioecious or dioecious; all are wind-pollinated. Conifer seeds develop inside a protective cone called a strobilus. The cones take from four months to three years to reach maturity, and vary in size from 2 to 600 millimetres (1 ⁄ 8 to 23 + 5 ⁄ 8 in) long.
Metasequoia glyptostroboides, the dawn redwood, is a fast-growing, endangered deciduous conifer.It is the sole living species of the genus Metasequoia, one of three genera in the subfamily Sequoioideae of the family Cupressaceae.
Larix laricina is a small to medium-size boreal deciduous conifer tree reaching 15–23 m (49–75 ft) tall, with a trunk up to 60 cm (24 in) diameter. [5] The bark of mature trees is reddish, the young trees are gray with smooth bark. [6]
The tree is a large deciduous conifer reaching 30 to 60 meters (98 to 197 feet) tall, with a trunk up to 1.5 m (4 ft 11 in) diameter; the bark ranges from orangish to purplish brown. [5] The crown is narrow conic; the main branches are level to upswept, with the side branches often drooping.
Deciduous shrubs include honeysuckle, viburnum, and many others. Most temperate woody vines are also deciduous, including grapes , poison ivy , Virginia creeper , wisteria , etc. The characteristic is useful in plant identification; for instance in parts of Southern California and the American Southeast , deciduous and evergreen oak species may ...
The conifers, division Pinophyta, are one of 13 or 14 division level taxa within the Kingdom Plantae. They are cone -bearing seed plants with vascular tissue; all extant conifers are woody plants , the great majority being trees with just a few being shrubs .