Solidago multiradiata is a species of goldenrod known by the common names Rocky Mountain goldenrod, northern goldenrod, and alpine goldenrod. It is native to North America, where it can be found throughout the northern regions, including Alaska and most of Canada (all 3 territories plus all provinces except Prince Edward Island, including territory north of the Arctic Circle. Its distribution extends through the western United States as far south as Arizona, New Mexico, and California. It is known mostly from the subalpine and alpine climates of high mountain ranges. Its habitat includes tundra and mountain meadows.
This is a perennial herb producing one or more decumbent or erect stems from a branching caudex. The stems vary in maximum length or erect height from 3 to 80 centimeters. The leaves are linear or lance-shaped, sometimes narrowing quite a bit at the bases to become spoon- or spatula-shaped. They measure up to 20 centimeters long at the base of the plant, and are smaller farther up the stem. They are mostly hairless but may have hairs lining the toothed or serrated edges. The inflorescence is a cluster of several flower heads, with clusters containing up to 100 heads. Each flower head contains many yellow disc florets and many narrow yellow ray florets each 3 or 4 millimeters long. The fruit is an achene a few millimeters in length. It is coated in rough hairs and usually has a pappus on the tip.
- The Plant List, Solidago multiradiata Nutt.
- "Solidago multiradiata". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 19 November 2015.
- Flora of North America, Solidago multiradiataAiton, 1789. Northern or Rocky Mountain goldenrod , verge d’or à rayons nombreux
- Biota of North America Program 2014 state-level distribution map
- Calflora taxon report, University of California, Solidago multiradiata Aiton Rocky Mountain goldenrod, northern goldenrod
- Flora of the Canadian Arctic Archipelago
- Alaska Dept. Natural Resources
- Jepson Manual Treatment
- United States Department of Agriculture Plants Profile
- Washington Burke Museum
- Callphotos Photo gallery, University of California
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