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Largeflower Spike-primrose
Epilobium pallidum
About Largeflower Spike-primrose (Epilobium pallidum) 0 Nurseries Carry This Plant Epilobium pallidum is a species of flowering plant in the evening primrose family known by the common name largeflower spike-primrose. It is native to western United States, where it grows in moist areas in northern California, Oregon, and Idaho. It is an annual herb producing a narrow, upright stem up to 60 centimeters long lined with narrow oval leaves each up to 5 centimeters in length. The inflorescence atop the stem bears several flowers and hairy, leaflike bracts. Each flower has four bilobed petals each up to about a centimeter long and bright pink in color. The fruit is a beaked capsule between 1 and 2 centimeters long containing a row of tiny seeds.
Plant Description
Plant Type
Plant Type
Annual herb

0.16 - 2 ft tall

Flower Color
Flower Color

Wildlife Supported

Landscaping Information
Common uses
Common uses
Hummingbird Gardens

Natural Setting
Annual Precipitation: 18.4" - 59.7", Summer Precipitation: 0.46" - 2.20", Coldest Month: 26.0" - 49.9", Hottest Month: 54.1" - 76.3", Humidity: 0.50" - 26.55", Elevation: 115" - 7042"

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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