![]() ![]() Because this fast-growing, hardy plant grows quickly on burnt and stressed soils, it is an important pioneering species in disturbed areas: the early growth of rabbitbrush on sub-optimal sites helps other species become reestablished after disturbance. It can be found throughout Colorado National Monument, but may be more dominant in recently disturbed areas.ĭid you know: rabbitbrushes grow well on disturbed areas, and high concentrations of rabbitbrush can be used as an indicator for abandoned agricultural or graze zones, as well as for recent fire zones. Range: occurs throughout the western United States from California to Kansas, north into Canada, and south to Texas. Stems tend to form a rounded crown, with small yellow flowers appearing towards the tips in late summer and early fall. haydenii is consistently light to deeper pink. The height and color are quite variable in C. rhexiifolia are a hot, iridescent rose-pink. haydenii's bracts are most often very light pink those of C. rhexiifolia has fewer, more shallow cuts. The plant is slow to germinate and may not make an appearance for as long as three or four months. haydenii often has 3-5 shallow cuts in its upper leaves and bract tips C. The plant in the photograph is just beginning to show color in its uppermost. Plant seeds when the soil is between 55 and 65 degrees F. Sulphur Paintbrush Castilleja septentrionalis (C. This delicately colored paintbrush ranges from a light yellow to yellow/white. It is more yellow and hairier than Sulphur Paintbrush below. Most species grow to between 3-5 feet tall and have single narrow, yellow-green leaves borne on flexible yellow-green stems. Family: Broomrape (Orobanchaceae) AKA: Tundra Paintbrush, Western Yellow Paintbrush Photo taken on: JLocation: Scarp Ridge, GV, CO Life Zones: Subalpine to alpine Habitat: Tundra, slopes Grows to only 8' high. Description: there are five species of rabbitbrush present at Colorado National Monument. ![]()
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