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Castilleja haydenii
Castilleja haydenii, also known as Hayden's paintbrush, is a species of flower found in the mountains of southern Colorado and northern New Mexico, generally above timberline in the alpine tundra. Its purple flowers appear in the months of July through September. It was named after the geologist Ferdinand Vandeveer Hayden.
The range of Castilleja haydenii is primarily in southern Colorado and northern New Mexico with one known occurrence in the La Sal Mountains in Utah. The majority of the range is in nine counties in Colorado, most around the margins of the San Luis Valley, and also counties to the west that include the San Juan Mountains. The three counties in New Mexico, Mora, Rio Arriba, and Taos are likewise mountainous.
Castilleja haydenii was evaluated for its potential as a garden species at the Aberdeen Research and Extension Center, but none of the seeds sprouted in the greenhouse experiments. The seeds had been cold stratified for eight weeks at 4.4 °C (40 °F) and then planted into flats in a greenhouse kept at 27 °C (81 °F) during the day and 13 °C (55 °F) at night. However, the researcher David A. Nelson had more success evaluating it with Penstemon strictus in the Mid-Columbia basin of Washington state in 2003, 2004. He placed the seeds on damp paper towels in plastic bags in a refrigerator at 5 °C (41 °F) until roots appeared at four to six weeks. Then the seeds were planted in sterilized planting medium and sand and started daytime exposure in late February. Though he was still only able to achieve 60% survival at one year of age.
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 haydenii 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.
