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The trees grow to a height of 15–25 m (49–82 ft). The characteristic bark is smooth, powdery and greenish yellow, although new twigs are purple, flaking later to reveal the characteristic yellow. [4] It is one of the few trees where photosynthesis takes place in the bark. Straight, white spines grow from the branch nodes in pairs. The ...
Leaves are arranged alternately in a slender growing shoot 90 to 120 centimetres (3–4 ft) long. In form they are simple, a long oval terminating in a slender point. The leaves are 8 to 13 centimetres (3–5 in) long and 5 to 8 centimetres (2–3 in) wide, and are thick, firm, dark green, shining above, and paler green below when full grown.
The leaves are pinnately compound on older trees but bipinnately compound on vigorous young trees. [4] The leaflets are 1.4–3.6 cm (1 ⁄ 2 – 1 + 1 ⁄ 2 in) long when compound and very slightly smaller when bipinnate. [7] The leaves are green in summer and turn yellow in autumn in shades ranging from cream and tan to golden yellow. [8]
The bark of Pinus thunbergii is made up of countless shiny layers. Bark is the outermost layer of stems and roots of woody plants. Plants with bark include trees, woody vines, and shrubs. Bark refers to all the tissues outside the vascular cambium and is a nontechnical term. [1] It overlays the wood and consists of the inner bark and the outer ...
Prickles on a blackberry branch. In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called spinose teeth or spinose apical processes), are hard, rigid extensions or modifications of leaves, roots, stems, or buds with sharp, stiff ends, and generally serve the same function: physically defending plants against herbivory.
Pinus ponderosa, commonly known as the ponderosa pine, [3] bull pine, blackjack pine, [4] western yellow-pine, [5] or filipinus pine, [6] is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is the most widely distributed pine species in North America.
The bark on mature trees is a shiny yellow-bronze which flakes and peels in fine horizontal strips. [ 2 ] [ 10 ] The bark often has small black marks and dark horizontal lenticels . [ 7 ] After the tree reaches a diameter greater than 1 ft (0.30 m) the bark typically stops shredding and reveal a platy outer bark although the thinner branches ...
Sophora tetraptera foliage Sophora tetraptera flowers, foliage and seed pods. Most species of kōwhai grow to around 8 m high and have fairly smooth bark with small leaves. S. microphylla has smaller leaves (0.5–0.7 cm long by 0.3–0.4 cm wide) and flowers (2.5–3.5 cm long) than S. tetraptera, which has leaves of 1–2 cm long and flowers that are 3–5 cm long.