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Dense Flowered Platycarpos
Lupinus microcarpus var. densiflorus

About Dense Flowered Platycarpos (Lupinus microcarpus var. densiflorus) Dense Flowered Platycarpos (Lupinus microcarpus var. densiflorus) is an abundant native annual herb that grows in northern, southern and central California. It tends to grow in open or disturbed or recently burned places, at elevations from 0-5200 feet. This variety (densiflorus) is one of three recognized varieties that have somewhat overlapping ranges. Densiflorus generally has pale yellow flowers, but they may also be tinged with pink or purple.
Plant Description
Plant Type
Annual Herb

Max. Height
0.33 - 2.6 ft (0.1 - 0.8 m)

Flower Color
Yellow, Pink, Purple

Flowering Season

Native Status

Natural Setting
Site Type
Open or disturbed places


Elevation ?
0' - 6465'

Annual Precip. ?
4.8" - 70.8"

Summer Precip. ?
0.15" - 2.33"

Coldest Month ?
29.8° F - 59.1° F

Hottest Month ?
53.5° F - 87.6° F

Humidity ?
0.10 vpd - 38.37 vpd

Soil Description
Tolerates a variety of soils as long as adequate drainage is provided

Soil PH
6.0 - 8.0

Soil Toxicity Tolerance
Tolerates Sodic Soil


Cold Tolerance(° F)
Tolerates cold to 5° F

Sunset Zones ?
3, 4, 5, 6, 7*, 8*, 9*, 10, 11, 12, 13, 14*, 15*, 16*, 17*, 18, 19*, 20*, 21*, 22*, 23*, 24*

Wildlife Attracted
Lupines in general are very attractive to bees

Landscaping Information
Water Requirement ?
Extremely Low
Very Low
Moderate - High

Rarely Used

Propagation ?
For propagating by seed: Fresh seeds need no treatment. Stored seeds scarification or hot water.

Common uses
Bird Gardens, Butterfly Gardens, Bee Gardens

Nursery Availability
Sometimes Available

Other Names
Botanical Names
Lupinus densiflorus

Common Names
Whitewhorl Lupine

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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