Balsamorhiza hookeri
Balsamorhiza hookeri (Hooker's balsamroot) is a North American species of perennial plant in the sunflower family. It grows in the Great Basin and neighboring regions in the western United States.[2]:115 It is found in Washington, Oregon, California, Idaho, Nevada, Utah, and Arizona.[3][4][5]
Balsamorhiza hookeri | |
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Balsamorhiza hookeri in flower on Badger Mountain, Douglas County Washington | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Balsamorhiza |
Species: | B. hookeri |
Binomial name | |
Balsamorhiza hookeri | |
Synonyms[1] | |
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Description
Leaves and stems
Leaves are compound pinnate, with the leaflet divisions also divided or deeply lobed. Basal leaves are hairy and may be up to 16 inches (41 cm) long.[2]:115
The stem is leafless and hairy.[2]:115
Inflorescence and fruit
It blooms from April to July. Flower heads are 1 to 3 inches (2.5 to 7.6 cm) wide, and sunflower-like, with 10-21 fringe-tipped ray flowers and numerous disc flowers.[2]:115
Habitat and range
It grows to 9,000 feet (2,700 m) in dry, grassy meadows in sagebrush steppe and montane plant communities in the Great Basin.[2]:115
Ecological interactions
It tends to grow in rockier habitats than its cousin, arrow-leaf balsamroot (Balsamorhiza sagittata).[2]:115 It hybridizes with arrow-leaf balsamroot, which has arrow shaped leaves.[2]:115 The result is a plant with leaves that are arrow shaped, but also deeply divided.[2]:115
References
- "Balsamorhiza hookeri (Hook.) Nutt.". The Global Compositae Checklist (GCC) – via The Plant List.
- Great Basin Wildflowers, Laird R. Blackwell, 2006, Morris Book Publishing LLC., ISBN 0-7627-3805-7
- "Balsamorhiza hookeri". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
- "Balsamorhiza hookeri". Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. Berkeley, California: The Calflora Database – via www.calflora.org.
- Weber, William A. (2006). "Balsamorhiza hookeri". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). 21. New York and Oxford – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
External links
- Media related to Balsamorhiza hookeri at Wikimedia Commons