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Thermopsis macrophylla
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Common False Lupine
( Thermopsis macrophylla )
Thermopsis macrophylla
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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2 Nurseries Carry This Plant
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About Common False Lupine (Thermopsis macrophylla)
2 Nurseries Carry This Plant
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Thermopsis macrophylla
is a species of flowering plant in the legume family known by the common names Santa Inez goldenbanner and Santa Ynez false-lupine. It is endemic to Santa Barbara County, California, where there are 500 to 2500 individuals remaining in the Santa Ynez Mountains. Only two occurrences have been confirmed recently, but the appearance of plants in coming seasons will depend on wildfire activity in the region, because plants spring up from the dormant seed bank after fire. All the known populations occur on wildlands within the Los Padres National Forest. The plant grows in chaparral on sandstone soils among chamise (
Adenostoma fasciculatum
), Eastwood's manzanita (
Arctostaphylos glandulosa
), and chaparral whitethorn (
Ceanothus leucodermis
). This species once included several other species of Thermopsis, but in 1994, the others were separated out and elevated to species status, and the name T. macrophylla was applied to this rare variety limited to the Santa Ynez Mountains. This is a rhizomatous perennial herb growing up to 2 meters tall and one wide. It produces up to ten inflorescences each bearing up to 100 bright yellow flowers up to 2 centimeters long each. The fruit is a legume pod containing six to eight seeds. The seeds have very hard coats and must be scarified by fire until they reach 80 degreesC if they are to germinate.
Plant Description
Plant Type
Perennial herb
Size
3 - 6.6 ft tall
Flower Color
Yellow
Wildlife Supported
Butterflies & moths hosted ( 1
confirmed
, 6
likely
* )
SHOW ALL
Queen Alexandra's Sulphur
Colias alexandra
Colias alexandra
*
Orange Sulphur
Colias eurytheme
Colias eurytheme
*
Silvery Blue
Glaucopsyche lygdamus
Glaucopsyche lygdamus
*
Persius Duskywing
Erynnis persius
Erynnis persius
*
Clouded Sulphur
Colias philodice
Colias philodice
*
Duskywing
Erynnis afranius
Erynnis afranius
*
Western Sulphur
Colias occidentalis
Colias occidentalis
Landscaping Information
Sun
Full Sun, Part Shade
Nurseries
Carried by 2
Ease of Care
Moderately Easy
Common uses
Deer Resistant, Butterfly Gardens
Propagation
?
For propagating by seed: Hot water treatment. For propagating by seed: Hot water treatment.
Sunset Zones
?
1, 2, 3, 6*, 7*, 14, 15*, 16*, 17*, 18, 19, 20, 21, 22*, 23*, 24*
Natural Setting
Site Type
erpentine rock ourcroppings or adobe grasslands
Climate
Annual Precipitation: 15.1" - 151.9", Summer Precipitation: 0.20" - 6.00", Coldest Month: 36.0" - 52.5", Hottest Month: 59.8" - 77.1", Humidity: 0.12" - 23.57", Elevation: 21" - 4902"
Alternative Names
Botanical Names
: Thermopsis macrophylla var. macrophylla,Thermopsis macrophylla var. agnina
Common Names
: California Falselupine, Santa Inez Goldenbanner, Santa Ynez False Lupine, Santa Ynez False-lupine
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Common False Lupine
Thermopsis macrophylla
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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