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Silverhair Mousetail
Ivesia argyrocoma
  
About Silverhair Mousetail (Ivesia argyrocoma) 0 Nurseries Carry This Plant Ivesia argyrocoma is a species of flowering plant in the rose family known by the common name silverhair mousetail. It is native to the San Bernardino Mountains of southwestern San Bernardino County, California. A population is also known from Baja California in Mexico; this population may or may not be distinct and further study is needed. This is a small perennial herb producing a clump of fuzzy reddish naked stems that grow horizontal to the ground and a number of tail-like hairy leaves which grow erect and may curl or droop. The stems are 10 to 20 centimeters long. Each leaf is a nearly cylindrical strip of tightly overlapping leaflets arranged around a central rachis up to 8 centimeters long. The leaflets are green and covered in a dense coat of shiny silver hairs. Most of the leaves emerge from the base of the stem; a few very small ones may emerge farther up the stem. At the tip of the stem is an inflorescence of one or more clusters of glandular flowers. Each flower has generally five green and red, densely silver-haired, triangular sepals and five smaller oval or spoon-shaped white petals. The center of the flower contains twenty yellow-anthered white stamens and several pistils. The fruit is a tiny smooth brown achene.
Plant Description
Plant Type
Plant Type
Perennial herb

Flower Color
Flower Color
Yellow, White, Green, Red

Landscaping Information
Natural Setting
Climate
Climate
Annual Precipitation: 17.5" - 35.6", Summer Precipitation: 1.11" - 2.59", Coldest Month: 29.8" - 44.0", Hottest Month: 55.4" - 68.8", Humidity: 2.05" - 20.87", Elevation: 4873" - 9481"

Alternative Names
Common Names: Silver-haired Ivesia


Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora


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