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Typical tree species included oaks ancestral to present-day California oaks, as well as an assemblage of trees from the Laurel family, including Nectandra, Ocotea, Persea, and Umbellularia. [ 24 ] [ 25 ] Only one native species from the Laurel family (Lauraceae), Umbellularia californica , remains in California today.
Platanus (/ ˈ p l æ t ə n ə s / PLAT-ən-əss [1]) is a genus consisting of a small number of tree species native to the Northern Hemisphere. They are the sole living members of the family Platanaceae. All mature members of Platanus are tall, reaching 30–50 m (98–164 ft) in height. The type species of the genus is the Oriental plane ...
In video games using procedural world generation, the map seed is a (relatively) short number or text string which is used to procedurally create the game world ("map"). "). This means that while the seed-unique generated map may be many megabytes in size (often generated incrementally and virtually unlimited in potential size), it is possible to reset to the unmodified map, or the unmodified ...
A crop of seeds is generally produced every year with a bumper crop often occurring every second year. A single tree between 5 and 20 cm (2.0 and 7.9 in) in diameter can produce between 12,000 and 91,000 seeds in a season. A tree 30 cm (0.98 ft) in diameter was shown to produce nearly a million seeds. [8]
The fruit matures in about 6 months, to 2–3 centimetres (0.8–1.2 in) diameter, and comprises a dense spherical cluster of achenes with numerous stiff hairs which aid wind dispersal; the cluster breaks up slowly over the winter to release the numerous 2–3 mm (0.08–0.12 in) seeds. The London Plane is one of the most efficient trees in ...
They are large, deciduous trees that are 15–30 m (50–100 ft) tall and diameters of 4 m (13 ft), [2] distinguished by thick, deeply fissured bark and triangular-based to diamond-shaped leaves that are green on both sides (without the whitish wax on the undersides) and without any obvious balsam scent in spring.
Opuntia polyacantha is a common species of cactus known by the common names plains pricklypear, [3] [4] starvation pricklypear, [5] hairspine cactus, [3] and panhandle pricklypear. [2] It is native to North America, where it is widespread in Western Canada , the Great Plains , the central and Western United States , and Chihuahua in northern ...
The fruit is a 10 cm-long (4 in) pendulous string of 6-millimeter (1 ⁄ 4 in) capsules, each capsule containing about ten minute seeds embedded in cottony fluff, which aids wind dispersal of the seeds when they are mature in early summer. Trees as young as 2–3 years old may begin seed production, but significant output starts at 10 years of age.