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Spiny Hopsage
Grayia spinosa
  
About Spiny Hopsage (Grayia spinosa) 4 Nurseries Carry This Plant Grayia is a monotypic genus of plants containing the sole species Grayia spinosa, which is known by the common names hop sage and spiny hop sage. This plant is widely distributed across the western United States, where it grows in a number of desert and mountain habitats. It is a small, multibranched, brambly shrub generally under a meter in height. The grayish branches have spiny, pointed ends and stiff twigs. During the growing season the branches are covered in small oval-shaped, flat to scooplike leaves mostly under 3 centimeters in length. The shrub is dioecious, with male individuals flowering in clumps of a few flowers surrounded by leaflike leafs, and female individuals producing flower clusters of bright pink, yellow, or white fruiting leafs surrounding tiny petalless pistillate flowers. Female flower clusters are much larger than male and make the plant one of the more colorful shrubs in the springtime habitat. The fruit is a utricle only a few millimeters wide. The shrub sheds its leaves and flowers by the summer in hot or dry areas and becomes a woody gray thicket; it is evergreen in some regions. The genus was named after the botanist Asa Gray.
Plant Description
Plant Type
Plant Type
Shrub

Size
Size
1.7 - 3.3 ft tall

Form
Form
Upright

Growth Rate
Growth Rate
Slow

Dormancy
Dormancy
Evergreen

Flower Color
Flower Color
Red, Pink, Cream, Yellow, White

Flowering Season
Flowering Season
Spring

Wildlife Supported
 


 
Butterflies & moths hosted ( 1 confirmed ) SHOW ALL
Perizoma custodiata Image
Perizoma custodiataPerizoma custodiata

Landscaping Information
Sun
Sun
Full Sun, Part Shade

Moisture
Moisture
Low

Nurseries
Nurseries

Ease of Care
Ease of Care
Moderately Easy

Soil Drainage
Soil Drainage
Fast

Soil Description
Soil Description
Adaptable, tolerant of sand, loam and clay

Propagation
Propagation?
For propagating by seed: No treatment; best germination occurs at 41°F constant. Wide diurnal fluctuation from 50° to 86°F also gives good germination ( Heit 1971). Two to 3 mos. stratification may also give good results.

Natural Setting
Site Type
Site Type
Sandy gravelly places

Climate
Climate
Annual Precipitation: 2.3" - 41.6", Summer Precipitation: 0.19" - 2.85", Coldest Month: 22.0" - 60.1", Hottest Month: 49.6" - 88.6", Humidity: 0.53" - 47.01", Elevation: 78" - 9646"

Alternative Names
Common Names: Spiny Hop Sage


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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