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California Bottle Brush Grass
Elymus californicus
About California Bottle Brush Grass (Elymus californicus) 8 Nurseries Carry This Plant Elymus californicus is a species of wild rye known by the common name California bottlebrush grass. This grass is endemic to California where it is an uncommon species known from a few counties in the San Francisco Bay Area. It grows between one and two meters in height. The tall, erect stem is nearly naked, bearing the occasional sheathing leaf with a blade 10 to 20 centimeters long. It bears an erect flower cluster which curves as it becomes heavier in grain. Each flower cluster is divided into three or four nodes with three or four spikelets per node. Each spikelet is between one and two centimeters long, not counting a long awn about two centimeters long.
Plant Description
Plant Type
Plant Type

3.3 - 7 ft tall

Flower Color
Flower Color

Wildlife Supported

Butterflies & moths hosted ( 11 likely * ) SHOW ALL

Landscaping Information
Full Sun, Part Shade, Full Shade


Common uses
Common uses
Deer Resistant

For propagating by seed: No treatment.  For propagating by seed: No treatment.

Sunset Zones
Sunset Zones?
5*, 7, 14*, 15*, 16*, 17*, 19, 20, 21, 22*, 23*, 24*

Natural Setting
Annual Precipitation: 5.6" - 112.0", Summer Precipitation: 0.28" - 3.96", Coldest Month: 17.2" - 50.2", Hottest Month: 36.1" - 76.3", Humidity: 0.61" - 29.44", Elevation: 63" - 14197"

Alternative Names
Common Names: California Bottle Grass, California Bottle-brush Grass, California Bottlebrush Grass

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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