Neviusia cliftonii

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.[1]

Neviusia cliftonii
Scientific classification
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

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.[2]

Description

Neviusia cliftonii is an erect deciduous shrub reaching 2.5 meters in maximum height. The alternately arranged leaves are oval or heart shaped and lined with toothed lobes. The leaf blades reach 6 centimeters long 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 half a centimeter long. There are rarely a single white petal basal to the stamens, although the petals are often absent. The fruit type is a soft-bodied achene a few millimeters long [anatomically the fruit is an achenetum].

When not in flower, the plant resembles common shrubs such as oceanspray and ninebark, one reason why it may have gone unrecognized for so long.[3]

References
  1. California Native Plant Society Rare Plant Profile
  2. 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.
  3. Nelson, J. K. Plant of the Week: Shasta Snow-wreath. USFS.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.