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The sessile oak is a large deciduous tree up to 40 metres (130 feet) tall, [10] in the white oak section of the genus (Quercus sect. Quercus) and similar to the pedunculate oak (Q. robur), with which it overlaps extensively in range.
The leaves are arranged alternately along the twigs and are broadly oblong or ovate, 10–12 centimetres (4– 4 + 1 ⁄ 2 in) long by 7–8 cm (2 + 3 ⁄ 4 – 3 + 1 ⁄ 4 in) wide, with a short (typically 2–3 millimetres or 1 ⁄ 16 – 1 ⁄ 8 inch) petiole. They have a cordate (auricled) base and 3–6 rounded lobes, divided no further ...
Fossil evidence from lignite mines in the Indian states of Rajasthan and Gujarat indicate that sal trees (or at least a closely related Shorea species) have been a dominant tree species of forests of the Indian subcontinent since at least the early Eocene (roughly 49 million years ago), at a time when the region otherwise supported a very different biota from the modern day.
Trees are also typically defined by height, [4] with smaller plants from 0.5 to 10 m (1.6 to 32.8 ft) being called shrubs, [5] so the minimum height of a tree is only loosely defined. [4] Large herbaceous plants such as papaya and bananas are trees in this broad sense. [2] [6]
Angiospermae; Scientific name Common name Family FIA Code (US) Conservation status Hardwoods; Aceraceae: maple family; Acer: maples; Acer amplum: broad maple Aceraceae (maple family)
Krummholz Pinus albicaulis in Wenatchee National Forest Wind-sculpted krummholz trees, Ona Beach, Oregon. Krummholz (German: krumm, "crooked, bent, twisted" and Holz, "wood") — also called knieholz ("knee timber") — is a type of stunted, deformed vegetation encountered in the subarctic and subalpine tree line landscapes, shaped by continual exposure to fierce, freezing winds.
Young female cone Pinus sylvestris forest in Sierra de Guadarrama, central Spain. Pinus sylvestris is an evergreen coniferous tree growing up to 35 metres (115 feet) in height [4] and 1 m (3 ft 3 in) in trunk diameter when mature, [5] exceptionally over 45 m (148 ft) tall and 1.7 m (5 + 1 ⁄ 2 ft) in trunk diameter on very productive sites.
Mopane wood is one of southern Africa's heaviest, with a density of 1.075 g/cm 3 when completely dry, and is difficult to work because of its hardness. [5] However, this also makes it termite resistant. For this reason it has long been used for building houses and fences, as railway sleepers and as pit props. The termite-resistance and rich ...