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Cirsium pumilum var. hillii
Cirsium pumilum var. hillii is a type of thistle endemic to North America. The common name for this plant is Hill's thistle.
Hill's thistle thrives in areas that are open, sandy, and dry. It also grows well in areas that are susceptible to fire and areas lacking tall vegetation. Its preferred habitats include sand prairies, sand dunes, open wooded areas, and limestone plains with thin soil and little vegetation. Natural fires are important for Hill's thistle because they burn large trees and debris, which reduces competition and allows it to grow.
Dwarf Thistle · Tall thistle · Rose thistle · Franciscan thistle · Alishan Thistle · Arizona thistle · Creeping Thistle · Barneby's thistle · Cirsium boninense · Cirsium brachycephalum · Palouse thistle · Clustered thistle
Text excerpted from the Wikipedia article Cirsium pumilum var. hillii by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
