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Calamagrostis rubescens

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About Pine Grass (Calamagrostis rubescens) Calamagrostis rubescens is a species of grass known by the common name pinegrass. It is native to western North America, including Canada from British Columbia to Manitoba and the United States from California to Colorado. It can be found in several types of habitat, including forest and woodlands. It is a perennial grass growing erect to heights between 60 centimeters and one meter. The flower cluster is a dense bunch or open array of spikelets. Each spikelet is about half a centimeter long and has a bent or twisted awn about the same length.
Plant Description
Plant Type

Max. Height
2 - 3.3 ft (0.6 - 1 m)


Growth Rate

Flower Color

Flowering Season

Native Status

Natural Setting
Site Type
Wooded slopes

Sun, Part Shade

Elevation ?
23' - 5300'

Annual Precip. ?
14.4" - 130.5"

Summer Precip. ?
0.16" - 4.43"

Coldest Month ?
38.5° F - 50.5° F

Hottest Month ?
59.4° F - 75.7° F

Humidity ?
0.49 vpd - 23.71 vpd

Soil Description
Prefers loamy or clay soils. Grows poorly in sandy soils.

Sunset Zones ?
1, 2, 4, 5, 6, 7*, 9, 10, 14*, 15*, 16*, 17*, 18*, 19*, 20*, 21*, 22*, 23*, 24

Landscaping Information
Propagation ?
For propagating by seed: No treatment.

Common uses
Deer Resistant

Nursery Availability
Never or Almost Never Available

Other Names
Common Names

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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