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Contents

   



(Top)
 


1 Habitat and range  





2 Growth pattern  





3 Leaves and stems  





4 Inflorescence and fruit  





5 Ecological interactions  





6 References  














Salix petrophila






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Salix petrophila
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malpighiales
Family: Salicaceae
Genus: Salix
Species:
S. petrophila
Binomial name
Salix petrophila

Rydb.

Salix petrophila, commonly known as alpine willow[1] and Rocky Mountain willow, is a Northwest American mountain shrub in the willow family (Salicaceae).[2]

Habitat and range

[edit]

It can be found in the subalpine zone and alpine zone of the Sierra Nevada range in wetlands such as moist banks and wet meadows, up to 9,900 to 13,000 feet (3,000 to 4,000 m).[2]

Growth pattern

[edit]

It is often overlooked because although sprawling and mat-forming, it is very small for a shrub, growing to only 4 inches (0.10 m) tall.[2]

Leaves and stems

[edit]

Leaves are 34to1+34 inches (0.019 to 0.044 m) long, elliptic, with soft hairs on the surface when young.[2] The other mat forming Sierra Nevada alpine willow, Salix nivalis, has smaller leaves (14to78 inch (0.0064 to 0.0222 m) that are hairless when young.[2]

Inflorescence and fruit

[edit]

Each plant has either all male or all female flowers, with an inflorescence that is a dense, upright catkin, growing to 2 inches (0.051 m).[2]

Ecological interactions

[edit]

It is pollinated by ants, as are some other willows.[2]

References

[edit]
  1. ^ USDA, NRCS (n.d.). "Salix petrophila". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 27 October 2015.
  • ^ a b c d e f g Wiese, Karen (2013). Sierra Nevada Wildflowers, 2nd Ed. Guilford, Connecticut: Globe Pequot Press. p. 197. ISBN 978-0-762-78034-1. Retrieved 6 August 2014.

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  • Retrieved from "https://en.wikipedia.org/w/index.php?title=Salix_petrophila&oldid=1178315080"

    Categories: 
    Salix
    Salicaceae stubs
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    This page was last edited on 2 October 2023, at 21:50 (UTC).

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