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Lathyrus japonicus
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Beach Pea
( Lathyrus japonicus )
Lathyrus japonicus
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Beach Pea (Lathyrus japonicus)
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Lathyrus japonicus
(common names Sea Pea, Beach Pea, Circumpolar Pea, Sea Vetchling) is a legume native to temperate coastal areas of Asia, Europe, North and South America. It is a herbaceous perennial plant growing trailing stems to 50-80 centimeter long, typically on sand and gravel storm beaches. The leaves are waxy waxy pale green, 5-10 centimeter long, pinnate, with 2-5 pairs of leaflets, the terminal leaflet usually replaced by a twining tendril. The flowers are 14-22 millimeter broad, with a dark purple standard petal and paler purple wing and keel petals; they are produced in racemes of 2-7 together.
Plant Description
Plant Type
Perennial herb
Size
1.5 ft tall
Form
Mounding
Growth Rate
Moderate
Flower Color
Purple
Flowering Season
Spring
Wildlife Supported
Butterflies & moths hosted ( 8
likely
* )
SHOW ALL
*
Orange Sulphur
Colias eurytheme
Colias eurytheme
*
Silvery Blue
Glaucopsyche lygdamus
Glaucopsyche lygdamus
*
Silver-Spotted Skipper
Epargyreus clarus
Epargyreus clarus
*
Clouded Sulphur
Colias philodice
Colias philodice
*
Queen Alexandra's Sulphur
Colias alexandra
Colias alexandra
*
Western Sulphur
Colias occidentalis
Colias occidentalis
*
Corn Earworm Moth
Helicoverpa zea
Helicoverpa zea
Landscaping Information
Sun
Full Sun
Soil Description
Prefers sandy or loamy soils. Does not grow well in clay soils.
Sunset Zones
?
15, 16*, 17*
Natural Setting
Site Type
Beaches and dunes
Climate
Annual Precipitation: 41.3" - 76.4", Summer Precipitation: 1.03" - 2.30", Coldest Month: 44.8" - 47.2", Hottest Month: 56.0" - 61.6", Humidity: 0.33" - 8.71", Elevation: -80" - 92"
Alternative Names
Common Names
: Sea Peavine
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Beach Pea
Lathyrus japonicus
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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