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Epilobium obcordatum
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Rockfringe
( Epilobium obcordatum )
Epilobium obcordatum
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Rockfringe (Epilobium obcordatum)
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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
Size
6 in tall
Flower Color
Purple
Wildlife Supported
Butterflies & moths hosted ( 9
likely
* )
SHOW ALL
*
White-lined Sphinx
Hyles lineata
Hyles lineata
*
Black-Banded Carpet
Antepirrhoe semiatrata
Antepirrhoe semiatrata
*
Clark's Day Sphinx Moth
Proserpinus clarkiae
Proserpinus clarkiae
*
Double-Banded Carpet
Spargania magnoliata
Spargania magnoliata
*
Langston's Forester
Alypia langtoni
Alypia langtoni
*
Tacoma Cutworm
Trichordestra tacoma
Trichordestra tacoma
*
Fireweed Clearwing
Albuna pyramidalis
Albuna pyramidalis
Landscaping Information
Sun
Part Shade
Common uses
Bird Gardens, Hummingbird Gardens
Sunset Zones
?
1, 2, 4, 5, 6, 7, 14, 15, 16, 17
Natural Setting
Site Type
Rocky places
Climate
Annual Precipitation: 8.6" - 115.4", Summer Precipitation: 0.35" - 4.03", Coldest Month: 17.9" - 42.0", Hottest Month: 38.4" - 77.4", Humidity: 0.97" - 25.87", Elevation: 960" - 14460"
Alternative Names
Common Names
: Heart Willowherb, Heart Willowweed, Rockfringe Willowherb
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Rockfringe
Epilobium obcordatum
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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