''Chrysothamnus scopulorum'', called Grand Canyon glowweed or evening-daisy , is a North American species of flowering plants in the tribe

Astereae Astereae is a tribe of plants in the family Asteraceae that includes annuals, biennials, perennials, subshrubs, shrubs, and trees. They are found primarily in temperate regions of the world. Plants within the tribe are present nearly worldwide d ...

within the family

Asteraceae The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae ...

. It has been found only in northern

Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a U.S. state, state in the Southwestern United States. It is the list of U.S. states and territories by area, 6th largest and the list of U.S. states and territories by population, 14 ...

and southern

Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to its ...

. ''Chrysothamnus scopulorum'' is a branching shrub up to 100 cm (40 inches) tall with tan or gray bark, becoming flaky as it gets old. It has many small, yellow

flower heads A pseudanthium (Greek for "false flower"; ) is an inflorescence that resembles a flower. The word is sometimes used for other structures that are neither a true flower nor a true inflorescence. Examples of pseudanthia include flower heads, compos ...

clumped into dense arrays. The species grows on mountain slopes alongside brush and

Ponderosa pine ''Pinus ponderosa'', commonly known as the ponderosa pine, bull pine, blackjack pine, western yellow-pine, or filipinus pine is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is t ...

.Urbatsch, Lowell Edward, Roberts, Roland P., & Neubig, Kurt Maximilian. 2005. Sida 21(3): 1626-1627
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References

External links

photo of herbarium specimen at Missouri Botanical Garden, collected in Utah, type specimen of ''Bigelowia menziesii'' var. ''scopulorum''/''Chrysothamnus scopulorum''
{{Taxonbar, from=Q15595253 Astereae Flora of Arizona Flora of Utah Flora of the Colorado Plateau and Canyonlands region Endemic flora of the United States Plants described in 1895 Flora without expected TNC conservation status