Neviusia cliftonii

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Neviusia cliftonii
Neviusiacliftonii.jpg
Status TNC G2.svg
Imperiled  (NatureServe) [1]
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Genus: Neviusia
Species:
N. cliftonii
Binomial name
Neviusia cliftonii
Shevock, Ertter & D.W. Taylor

Neviusia cliftonii is a rare species of shrub in the rose family which is known by the common name Shasta snow-wreath. It is endemic to Shasta County, California, where it is known from about 25 occurrences in the mountains around Lake Shasta. [2]

Contents

The shrub was not known to science until 1992, when it was discovered east of Redding, California and described as a new species in Neviusia , previously a monotypic genus. [3]

Description

Neviusia cliftonii is an erect deciduous shrub reaching 2.5 meters (8 ft) in maximum height. [4] The alternately arranged leaves are oval or heart-shaped and lined with toothed lobes. The leaf blades reach 6.5 centimeters (2+1⁄2 in) long [4] and are borne on short petioles. The inflorescence is an umbel-like cluster of 3 to 5 flowers. The flower is a ball of about 50 long, whiskery white stamens each about 0.5 cm (1⁄4 in) long. There is rarely a single white petal base to the stamens, although the petals are often absent. The fruit type is a soft-bodied achene a few millimeters long; [4] anatomically the fruit is an achenetum.

Similar species

When not in flower, the plant resembles common shrubs such as oceanspray and ninebark, possibly why it went unrecognized for so long. [5]

References

  1. ↑ "NatureServe Explorer 2.0".
  2. ↑ "California Native Plant Society Rare Plant Profile". Archived from the original on 2012-03-26. Retrieved 2011-07-25.
  3. ↑ Shevock, J. R., B. Ertter, and D. W. Taylor. (1992). Neviusia cliftonii (Rosaceae: Kerrieae), an intriguing new relict species from California. Novon 2:4 285-89.
  4. 1 2 3 Turner, Mark; Kuhlmann, Ellen (2014). Trees & Shrubs of the Pacific Northwest (1st ed.). Portland, OR: Timber Press. p. 246. ISBN   978-1-60469-263-1.
  5. ↑ Nelson, J. K. Plant of the Week: Shasta Snow-wreath. USFS.


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