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Pulsatilla nuttalliana, known as American pasqueflower, prairie pasqueflower, prairie crocus, or simply pasqueflower, is a flowering plant native to much of North America, from the western side of Lake Michigan, to northern Canada in the Northwest Territories, south to New Mexico in the southwestern United States. Pasqueflower is the provincial flower of Manitoba and the state flower of South Dakota.
The prairie pasqueflower is rarely grown in gardens as an ornamental flower and is frequently confused with the commonly-grown European species, Pulsatilla vulgaris. However, it is useful as an ornamental, particularly for those interested in North American native species. They are somewhat more often planted in gardens intended to resemble an Upper Midwest prairie or in rock gardens and for its forage value to bees in the spring.
Fresh seed of Pulsatilla species, including of Pulsatilla nuttalliana, germinates readily without stratification or pretreatment in about 3 weeks or slightly more. Seed that has been dry-stored for some months will require a cool moist stratification for 60 days and then sprout at temperatures of 18 to 21°C. The seeds do not keep well and should be immediately planted or stored in cool dry conditions. Pasqueflowers are also propagated vegetatively for gardens or habitat restoration by taking 2–4 cm root cuttings and planting them in well drained potting mediums.
The natural habitats of Pulsatilla nuttalliana include cool northern prairies, open slopes, fescue grasslands, granite outcrops in forests, and woodlands that are dry and open in montane and boreal areas. They will also grow in human created habitats like clearcut areas, roadsides, and the edges of gravel pits.
Alpine anemone · Pulsatilla bungeana · Narrow-leaf pasque-flower · Northeast Asian Pasque Flower · Greater Pasque Flower · Alpine Pasque Flower · Pulsatilla integrifolia · Mountain Pasque Flower · White pasqueflower · Eastern pasqueflower · Small Pasque Flower · Spring Pasque Flower
Text excerpted from the Wikipedia article Pulsatilla nuttalliana by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
