Balsamorhiza hookeri

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Balsamorhiza hookeri
Balsamorhiza hookeri 2.jpg
Balsamorhiza hookeri in flower on Badger Mountain, Douglas County Washington
Scientific classification edit
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]
  • Balsamorhiza balsamorhiza (Hook.) A.Heller
  • Balsamorhiza hirsuta Nutt.
  • Balsamorhiza platylepis W.M.Sharp
  • Heliopsis balsamorhiza Hook.
Balsamorhiza hookeri, photographed in the Wasatch foothills, Provo, Utah.

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]

Description[]

Growth pattern[]

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[]

  1. ^ "Balsamorhiza hookeri (Hook.) Nutt.". The Global Compositae Checklist (GCC) – via The Plant List.
  2. ^ Jump up to: a b c d e f g h Great Basin Wildflowers, Laird R. Blackwell, 2006, Morris Book Publishing LLC., ISBN 0-7627-3805-7
  3. ^ "Balsamorhiza hookeri". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
  4. ^ "Balsamorhiza hookeri". Calflora: Information on California plants for education, research and conservation. Berkeley, California: The Calflora Database – via www.calflora.org.
  5. ^ 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[]

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