If you would like to support this site, please consider Donating.
Useful Temperate Plants

Lupinus densiflorus

Benth.

Fabaceae


We are following the treatment in the USDA on-line resource 'Plants Database', but this species is sometimes treated as a subspecies of Lupinus microcarpus Sims. (as Lupinus microcarpus densiflorus (Benth.) Jeps.)

+ Synonyms

Lupinus microcarpus scopulorum (C.P.Sm.) C.P.Sm.

Lupinus microcarpus densiflorus (Benth.) Jeps.

Lupinus menziesii J.Agardh

Lupinus glareosus Elmer

Lupinus arenicola A.Heller

Common Name:

No Image.

General Information

Lupinus densiflorus is an annual plant with stems that are simple or branched above; it can grow up to 40cm tall[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
The plant is sometimes harvested from the wild for local use as a food. It is used as a green manure and is often grown as an ornamental in gardens.

Known Hazards

Lupinus species in general (and especially the seeds) contain a range of bitter-tasting alkaloids such as lupine, anagyrine, sparteine and hydroxylupanine. The pharmacological effects of these alkaloids are that they block ganglionic transmission, decrease cardiac contractility and contract uterine smooth muscle[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. When ingested in moderate to large quantities they can cause symptoms such as respiratory depression and slow heartbeat, sleepiness and convulsions[
293
Title
Poisonous Plants of North Carolina
Publication
 
Author
 
Website
http://www.ces.ncsu.edu/depts/hort/consumer/poison/poison.htm
Publisher
 
Year
0
ISBN
 
Description
An excellent concise but comprehensive guide to toxic plants that grow in N. Carolina. It lists even those plants that are of very low toxicity, including several well-known food plants such as carrots and potatoes.
].
Alkaloid levels can vary greatly from species to species, and several members of the genus are used for food. In some species low-alkaloid, sweeter-tasting varieties have been developed. There are also techniques (particularly soaking and discarding the soak water) that lower the alkaloid levels.
Unless it is known that the plant is low in alkaloids then caution should be applied to any ingestion of the plant[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].
Fungal toxins can readily invade the crushed seed and can cause chronic illness[
65
Title
A Colour Atlas of Poisonous Plants.
Publication
 
Author
Frohne. D. and Pfänder. J.
Publisher
Wolfe
Year
1984
ISBN
0723408394
Description
Brilliant. Goes into technical details but in a very readable way. The best work on the subject that I've come across so far.
].

Botanical References

71
Title
A California Flora.
Publication
 
Author
Munz P.A. & Keck D.D.
Publisher
University of California Press; Los Angeles
Year
1959
ISBN
-
Description
An excellent flora but no pictures. Not for the casual reader.

Range

Western N. America - British Colombia, Washington, Oregon, California

Habitat

Grassy and open fields and hillsides in mixed evergreen forest, coastal ranges etc; at elevations up to 600 metres[
71
Title
A California Flora.
Publication
 
Author
Munz P.A. & Keck D.D.
Publisher
University of California Press; Los Angeles
Year
1959
ISBN
-
Description
An excellent flora but no pictures. Not for the casual reader.
].

Properties

Edibility Rating *  *
Other Uses Rating *  *
HabitAnnual
Height0.30 m
PollinatorsBees, Insects
Cultivation StatusOrnamental, Wild

Cultivation Details


Members of this genus are mainly found in dry habitats, often on stony and low fertility soils[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. In cultivation they generally grow well if given a sunny position in a deep, well-drained, moderately fertile soil with a neutral to slightly acid pH[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
The plant is sometimes grown as an ornamental, there are some named varieties[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
A very variable species, six varieties are recognized, five of them restricted to California.This species has a symbiotic relationship with certain soil bacteria; these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[
277
Title
Plants Database
Publication
 
Author
 
Website
http://plants.usda.gov/java/factSheet
Publisher
United States Department of Agriculture
Year
0
ISBN
 
Description
An online database with an excellent collection of fact sheets about native N. American plants.
].

Edible Uses

Leaves and flowers - cooked[
257
Title
Native American Ethnobotany
Publication
 
Author
Moerman. D.
Publisher
Timber Press. Oregon.
Year
1998
ISBN
0-88192-453-9
Description
Very comprehensive but terse guide to the native uses of plants. Excellent bibliography, fully referenced to each plant, giving a pathway to further information. Not for the casual reader.
]. Steamed and eaten with acorn soup[
257
Title
Native American Ethnobotany
Publication
 
Author
Moerman. D.
Publisher
Timber Press. Oregon.
Year
1998
ISBN
0-88192-453-9
Description
Very comprehensive but terse guide to the native uses of plants. Excellent bibliography, fully referenced to each plant, giving a pathway to further information. Not for the casual reader.
].

Medicinal

None known

Agroforestry Uses:

The plant is grown as a green manure and is useful for soil renovation and stabilization[
277
Title
Plants Database
Publication
 
Author
 
Website
http://plants.usda.gov/java/factSheet
Publisher
United States Department of Agriculture
Year
0
ISBN
 
Description
An online database with an excellent collection of fact sheets about native N. American plants.
].

Other Uses

We have no specific information for this species, but the soakwater used to extract alkaloids from several edible species of lupin has been shown to be effective as a biocide[
277
Title
Plants Database
Publication
 
Author
 
Website
http://plants.usda.gov/java/factSheet
Publisher
United States Department of Agriculture
Year
0
ISBN
 
Description
An online database with an excellent collection of fact sheets about native N. American plants.
].

Propagation

Pre-soak the seed for 24 hours in warm water and sow in mid spring in situ[
1
Title
RHS Dictionary of Plants plus Supplement. 1956
Publication
 
Author
F. Chittendon.
Publisher
Oxford University Press
Year
1951
ISBN
-
Description
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
,
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. You may need to protect the seed from mice. Germination should take place within 2 weeks.
The seed can also be sown in situ as late as early summer as a green manure crop.
Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2019-07-19. <temperate.theferns.info/plant/Lupinus+densiflorus>

Add a Comment:

If you have any useful information about this plant, please leave a comment. Comments have to be approved before they are shown here.