How you ever wondered why are plants endangered? There are many causes of endangered species of plants. The main cause for a plant to become endangered is loss of it's natural habitat. This is 
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mainly due to the expansion of man kind. As urban development increase, plants loose more and more of their natural habitat. Clearing land for pastures and agricultural purposes also cause plants to loose their habitat. Grazing animals are a large contributor to causing endangered species of plants.
Natural disasters also cause a plant to become endangered. Wild fires are a large natural cause for a plant to loose it's natural habitat. Certain weeds and pests can deplete the land needed for rare and endangered plants to survive as well.
Plants can become endangered due to their collection for multiple purposes. When plants are collected for nurseries or florists, the plant species number decreases. Rare plants are at a higher risk of extinction than other plants because of the unique beauty they offer. Plant collectors of rare plants are contributing to endangered species of plants.