California Native Plant Society
Tap map to see plants native to location
Add
All plants for California > Epilobium obcordatum >
Please enter either the common name or the botanical name of any native California plant species to see it's plant record

Loading....
Rockfringe
  • Added Add to My Plant List
Epilobium obcordatum
  

Zoom To My AddressZoom To California Estimated Plant Range



About Rockfringe (Epilobium obcordatum) Epilobium obcordatum is a species of willowherb known by the common name Rockfringe Willowherb. It is native to the western United States from California to Idaho, where it is found in rocky mountainous areas. This small perennial is clumpy to mat-forming and spreads from a woody caudex, especially in nooks between rocks. It has stems lined with oval or rounded leaves which spread parallel to the ground or ascend somewhat. At the tips of the thin stems are flowers each with four petals. The petals are magenta to purple, rounded and notched, often in a perfect heart shape, and are one or two centimeters long. The hairy, club-like, ridged fruit is a capsule two to four centimeters long growing on a short stalk.
Plant Description
Plant Type
Perennial herb

Max. Height
0.5 ft (0.2 m)

Native Status
Native

Natural Setting
Site Type
Rocky places

Sun
Part Shade

Elevation ?
960' - 14460'

Annual Precip. ?
8.6" - 115.4"

Summer Precip. ?
0.35" - 4.03"

Coldest Month ?
17.9° F - 42.0° F

Hottest Month ?
38.4° F - 77.4° F

Humidity ?
0.97 vpd - 25.87 vpd

Sunset Zones ?
1, 2, 4, 5, 6, 7, 14, 15, 16, 17

Landscaping Information
Common uses
Bird Gardens, Hummingbird Gardens

Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Heart Willowweed


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

Sign in to your Calscape Account X




Once signed in, you'll be able to access any previously saved plant lists or create new ones.

Email Address
Password

Sign In


Copyright © 1999-2014 California Native Plant Society. All rights reserved.