Balsamorhiza hookeri

Balsamorhiza hookeri
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Heliantheae
Genus: Balsamorhiza
Species: B. hookeri
Binomial name
Balsamorhiza hookeri
(Pursh) Nutt.

Balsamorhiza hookeri (Hooker's balsamroot) is a perennial plant in the sunflower family (Asteraceae that grows in the Great Basin of the western United States.[1]:115

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.[1]:115

The stem is leafless and hairy.[1]: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.[1]: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.[1]:115

Ecological interactions

It tends to grow in rockier habitats than its cousin, arrow-leaf balsamroot (Balsamorhiza sagittata).[1]:115 It hybridizes with arrow-leaf balsamroot, which has arrow shaped leaves.[1]:115 The result is a plant with leaves that are arrow shaped, but also deeply divided.[1]:115

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Great Basin Wildflowers, Laird R. Blackwell, 2006, Morris Book Publishing LLC., ISBN 0-7627-3805-7

External links

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