There are more than 300,000 species of plant life on Earth , concord to Botanical Online . There are two categories of plant component part : sexual reproductive and vegetative . Essential parts of a flora are those segments that are involved in the reproductive memory of the industrial plant . These parts admit the male stamen and female pistils . incidental or accessory parts of a works are still utile and important piece of the plant ; they just have no direct relationship with the reproduction of the plant life ’s species .
Petals (Corolla)
The corolla or more commonly know as the petals of a plant are considered incidental pieces of a flora . The petals of a flora have the specific job of luring worm to pollinate the flora . It is through pollination that the plant can get down the replica process . Corollas come in many shapes , sizes and colors . Each plant has its own typical looking petal ; some with bright pattern or markings that make them alien - looking . The petals are the compelling part of the plant that also appeal gardeners to purchase certain plants .
Sepals (Calyx)
The sepal of a plant life is also bed as the calyx ; this percentage of the plant is a nonessential part , but still has an of import job . The sepal is the part of a plant that has the province of protecting the bud of an undeveloped flush . The sepal is similar in appearing to a narrow-minded folio with a pointed crest . There are commonly two on opposite sides of the plant ’s bud . The plant ’s calyx is colored in various shades of green and its size depend upon the species of the plant .
Floral Bracts
flowered bracts grow around a flower ’s bloom to protect it ; this part of the plant can be made up of a multitude of grain , sizes and shapes . They are leaf - like parts of a plant , but do not partake in the mental process of photosynthesis . to aid the plant in attracting pollinators the floral bract are oftentimes very colorful . alas , some flowered bracts are broadly confused with the actual petal of a flower due to the flowered bracts similar shading . Some floral bract are the same coloration as the plant like with certain gage .
Thorns
Thorns are pieces of the plant ’s epidermis that was alter to form a acutely pointed spike that grow on the stems of sure flowering plants . Thorns acquire on a identification number of plant in various distance , shapes and semblance . This part of the plant is used as a method acting of self - defense so as to protect the plant from herbivores .
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