Pinyon Pine

Figure 31: Tree Diagram

Figure 32: Angiosperm Diagram

Taxonomic Classification:

Domain: Eukarya

Kingdom: Plantae

Class: Pinopsida

Order: Pinales

Family: Pinaceae

 Genus: Pinus

Species: Pinus edulis [74]

Figure 35: Cone of Pinus edulis

Figure 36: Pinyon Pine tree

Why is this organism in this Kingdom?

            The Pinus edulis is multicellular eukaryote. This is because the Pinus edulis is very complex, including growing roots, seeds and cones. None of these characteristics would be able to grow if the organism was not multicellular. Since the organism is multicellular, the organism also must be a eukaryote because prokaryotes cannot be multicellular. [79] That is why the organism fits only the Domain Eukarya, which only contains organisms that are eukaryotes that can be either unicellular or multicellular. The Pinus edulis reproduces via vegetative reproduction, which is asexual reproduction. The organism reproduces seeds, sometime however the seeds are taken by animals for food. Also the pinyon grows better when there is sunlight for the organism, and when it is a seedling it must be protected by the harsh environment. [79] In the Kingdom Plantae, the organisms reproduce sexually or asexually via apomixis or vegetative reproduction. [9] In addition, the Pinus edulis is not motile, and includes a root system, having a lateral and vertical root system. This root system would be found under the soil and under the rocks. The roots will start growing in another direction when it hits bedrock or something else. The roots will grow when the plant grows too, to help with survival. [79] The organisms found in the Kingdom Plantae, are not motile. The only other Kingdom that is not motile is the Kingdom Fungi and what separates the Plantae from the Fungi, is that the Plantae obtain their energy from the sunlight and are categorized as photoautotrophs. This process of storing the energy and using it consists of using photosynthesis. [8] The organism, Pinus edulis, is a photoautotroph. It uses sunlight to help it grow and help give the organism the nutrition it needs. In its roots, water is absorbed to  be used in its respiration which uses photosynthesis. It is hard for this organism to compete with other plants like grass that would need water from the soil especially in the seedling stage, which follows germination. The organisms is a sun-adapted plant and is classified as being  intolerant to shade. [79] The organism is classified in the Kingdom Plantae because of the characteristics it has, and because of the other Kingdoms not having the same characteristics.

General Description:

            The Pinus edulis is commonly referred to as the Pinyon Pine, the Colorado pinyon or the two-needle pinyon. It is small, long-lived tree widespread in the southwest of the United States. The areas it can be found include Arizona, Utah, Colorado, and New Mexico, with small populations in Nevada, southern Wyoming, some in western Oklahoma, Texas, and Mexico. They are planted in hot, dry locations, on slopes rather than in low spots where water would collect. The tree lives in very hot and even very cold. The temperature in pinyon pine woodlands is around 4° to 16° C. The temperature could even drop low to -35° C and reach a high 44° C in these areas.  The tree consists of evergreen shrubs or trees around the height of 21 tall. On the tree there is bark that is red-brown and scaly rounded. The branches come from the trunk of the tree with twigs coming from the branches that are red-brown or even tan. When the tree is aging the color of the tree will change to more of a gray color. The leaves are up-curved and live about 4-6 years. On the branches pollen cones can also be found that are yellowish to red-brown and about the size of 7 mm.  The cones have  needles poking out of it that 1-2 inches long. The nut or seed is found in the inside of the cone. When there is no nut in the in the inside, it is because there is a lack of pollen. Where there are many Pinyon Pine trees, more pollen can be found, and more of the cones consist of the nut in the inside.

            The Pinyon Pine has a relationship with animals. Birds, people and other animals all seek the cones and seeds the tree produces as food. Since these seeds have a wingspan they are unable to move on their own, but with the animals seeking them, they are able to be spread. Some of the animals take these seeds for the winter time and for hibernation. Some of the seeds drop or are not used so they germinate to produce new seedlings. The tree has environmental importance because it created a new structure, which produces habitat diversity. It also helps slow down the soil erosion, and enhances soil moisture. Another thing it does is to help the environment in providing a food source with the nuts/seeds for many birds, mammals and insects.  Historically, this changed mammals from not only eating other animals but now have the option to eat plants too. The flavor of its seeds are in much demand, making them its most valuable product of the Pinyon Pine. [80]

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