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Castilleja rhexiifolia
Also called Rocky Mountain Paintbrush, Alpine Paintbrush, Rhexia Leaved Paintbrush, Rhexia Leaf Indian Paintbrush, Rhexia Leaf Paintbrush, Rosy Paintbrush
Castilleja rhexiifolia, commonly called rosy paintbrush, subalpine paintbrush, or rhexia-leaved paintbrush, is a species of plant in Orobanchaceae, commonly known as the broomrape family. They are a common flower found in moist habitats near or above timberline in the Rocky Mountains and the Pacific Northwest. Like most members of the Castilleja genus, they are partially parasitic plants.
Castilleja rhexiifolia is native to North America and is found in mountainous areas from New Mexico northward in the Rocky Mountains to Alberta. To the west it continues into the Cascade Mountains in British Columbia, Washington State, and Oregon. Other states where it is known to grow include Idaho, Montana, Nevada, Utah, Wyoming, and Colorado.
Alpine paintbrush was evaluated for potential for cultivation as a garden ornamental, but was found to have a very low germination rate in greenhouse conditions and was not evaluated further. A similar result was found in another study trying to determine the gemination requirements of the species. Only 3% of seed germinated when given a warm to cold treatment of 21 °C to 4 °C and none at all when given an additional warm to cold cycle.
Coast Indian paintbrush · Johnny-nip · Northwestern Indian paintbrush · Wavyleaf Indian paintbrush · Aquarius Plateau Indian paintbrush · Cobwebby Indian paintbrush · Attenuate Indian paintbrush · Castilleja beldingii · Castilleja bella · Shortstyle Indian paintbrush · Vernal pool Indian paintbrush · Port Clarence Indian paintbrush
Text excerpted from the Wikipedia article Castilleja rhexiifolia 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.
