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Constancea nevinii
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Nevin's Woolly Sunflower
( Constancea nevinii )
Constancea nevinii
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Nevin's Woolly Sunflower (Constancea nevinii)
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Constancea is a monotypic genus of flowering plants in the aster family containing the single species
Constancea nevinii
(formerly
Eriophyllum nevinii
), which is known by the common name Nevin's woolly sunflower. It is endemic to three of the Channel Islands of California, where it grows in coastal scrub habitat. This is a small shrub or subshrub generally growing up to one or 1.5 meters tall, and taller when in erect form, with a branching, woolly stem. The whitish, woolly oval leaves may be up to 20 centimeters long and are divided into many narrow lobes with edges curled under. The flower cluster is a cluster of 10 to 50 or more small flower heads, each on a short peduncle. The flower head has a center of hairy, hairy, star-shaped yellow disc florets and a fringe of four to nine yellow ray florets each about 2 millimeters long. The fruit is an achene a few millimeters long with a small pappus at the tip.
Like many Channel Islands endemics, this plant was threatened with extinction by the herbivory of the feral goats living on the islands; the goats have since been removed and the plant is recovering. However, it is still included on CNPS list 1B.3 as a rare plant. The yellow flowers contrast nicely with the silvery-gray foliage. This plant would be good for coastal gardens in southern California where temperatures are moderate and it would receive some fog drip.
Plant Description
Plant Type
Shrub
Size
3.3 - 4.9 ft tall
3 ft wide
Form
Mounding
Growth Rate
Moderate
Dormancy
Evergreen
Fragrance
None
Flower Color
Yellow
Flowering Season
Spring, Summer
Wildlife Supported
Butterflies & moths hosted ( 2
likely
* )
SHOW ALL
*
Orange Tortrix Moth
Argyrotaenia franciscana
Argyrotaenia franciscana
*
Platyptilia williamsii
Platyptilia williamsii
Landscaping Information
Sun
Full Sun
Moisture
Very Low
Summer Irrigation
Max 1x / month once established
Nurseries
Carried by 10
Ease of Care
Very Easy
Cold Tolerance
Tolerates cold to 30° F
Soil Drainage
Fast, Medium
Soil Description
Sandy with pebbles or cobbles
Common uses
Deer Resistant, Butterfly Gardens, Butterfly Gardens, Bee Gardens
Companion Plants
Use with other Channel Island plants such as
Santa Cruz Island Ironwood
,
Island Live Oak
,
Island Bristleweed
,
Channel Island Tree Poppy
, and
Giant Coreopsis
. Other coastal sage scrub companions include
California Encelia
,
California Sagebrush
, and various Dudleya and cactus species.
Propagation
?
For propagating by seed: No treatment; leaching in running water for 24 hrs. before sowing may improve germination.
Natural Setting
Site Type
Coastal bluffs of the Channel Islands in coastal sage scrub
Climate
Annual Precipitation: 7.8" - 19.4", Summer Precipitation: 0.20" - 0.29", Coldest Month: 50.7" - 57.6", Hottest Month: 64.4" - 73.2", Humidity: 1.41" - 16.65", Elevation: -202" - 1518"
Alternative Names
Botanical Names
: Eriophyllum nevinii
Common Names
: Silverlace
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Nevin's Woolly Sunflower
Constancea nevinii
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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