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[1] [2] The underlying physiological mechanism is that trees transfer water and sap from the roots to the leaves through their vascular cells, but in some trees as autumn begins, the veins carrying the sap slowly close until a layer of cells called the abscission layer completely closes off the vein allowing the tree to rid itself of the leaf. [3]
Ficus insipida subsp. insipida Willd. - Largely glabrous twigs, leaves and petioles. [7] Occurs in Mesoamerica, the Caribbean, Venezuela to Bolivia. [8] Ficus insipida subsp. scabra C.C.Berg - Much hairier plant. Occurs in the Guianas, from Venezuela to northeast Brazil. [7] With about 750 species, Ficus is one of the largest angiosperm genera. [9]
Ficus sycomorus grows to 20 m tall and has a considerable spread, with a dense round crown of spreading branches. The leaves are heart-shaped with a round apex, 14 cm long by 10 cm wide, and arranged spirally around the twig. They are dark green above and lighter with prominent yellow veins below, and both surfaces are rough to the touch.
Ficus (/ ˈ f aɪ k ə s / [2] or / ˈ f iː k ə s / [3] [4]) is a genus of about 850 species of woody trees, shrubs, vines, epiphytes and hemiepiphytes in the family Moraceae. Collectively known as fig trees or figs , they are native throughout the tropics with a few species extending into the semi-warm temperate zone.
In the fields of horticulture and botany, the term deciduous (/ d ɪ ˈ s ɪ dʒ u. ə s /) [1] [2] means "falling off at maturity" [3] and "tending to fall off", [4] in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, after flowering; and to the shedding of ripe fruit.
Ficus obliqua planted as a shade tree in a playground, Glebe, New South Wales. Ficus obliqua is an elegant shade tree for parks or fields, and is adaptable to differing soils. [11] A notable specimen in Mick Ryan Park, Milton on the New South Wales south coast stands 14 m (46 ft) tall and 38 m (125 ft) across, [29] and is a local landmark. [30]
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Ficus benjamina is a tree reaching 30 m (98 feet) tall in natural conditions, with gracefully drooping branchlets and glossy leaves6–13 cm (2 + 3 ⁄ 8 – 5 + 1 ⁄ 8 inches), oval with an acuminate tip.