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Useful Temperate Plants

Lupinus rivularis

Douglas ex Lindl.

Fabaceae

+ Synonyms

Common Name: Riverbank Lupin

No Image.

General Information

Lupinus rivularis is an annual to short-lived perennial plant, sometimes producing stems that are more or less woody and can persist. The plant produces a cluster of usually herbaceous, erect stems 30 - 150cm tall from a deep, tap-rooted rootstock[
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.
].
The plant is harvested from the wild for local use as a medicine. It is often grown as a soil stabilizer and improver, and is sometimes grown as an ornamental.

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

Wet sandy or gravelly places on the coastal strand and in coastal scrub[
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

Medicinal Rating *  *
Other Uses Rating *  *  *
HabitAnnual/Perennial
Height1.00 m
PollinatorsBees, Insects
Cultivation StatusCultivated, Ornamental, Wild

Cultivation Details

Lupinus rivularis is not a very cold-hardy plant, able to tolerate temperatures down to around -8°c when fully dormant, though probably hadier than this if the summers are hot. It is found at elevations up to 1,800 metres, growing in areas where the mean annual rainfall can range from 450 - 2,500mm[
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.
].
Requires a sunny position. Plants are found in the wild on well-drained, sandy or gravelly soils[
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.
]. In cultivation it generally grows 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.
].
A fast-growing plant, quickly developing a deep taproot[
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.
].
The plant is often annual to biennial in habit, and is more likely to live longer when growing on soils low in nitrogen, such as sand dunes, cut slopes along roadsides, or dredge spoils where competition is reduced[
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.
].
The plant’s showy floral display and pleasant scent make it appropriate for certain landscape uses along roadsides, around residential areas, and within parks where a larger, short-lived wildflower is desired[
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.
].
For seed production, the crop should be harvested just before fully mature to avoid excessive shatter. Green seeds thus harvested have dried without any apparent loss in viability[
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.
].
Closely related to Lupinus latifolius[
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.
].
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[
1309
Title
The Leguminosae; A Source Book of Characteristics, Uses and Nodulation
Publication
 
Author
Allen O.N.; Allen E.K.
Publisher
University of Wisconsin
Year
1981
ISBN
0-333-32221-5
Description
An amazing and comprehensive work, giving a brief guide to the many genera of the family Fabaceae and also the principle uses of the genus.
].

Edible Uses

None known

Medicinal

The plants are reported to have been used medicinally by the Thompson Indians of British Columbia[
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.
].

Agroforestry Uses:

An excellent pioneer species for low-fertility and dry sites, where it can create conditions suitable for the climax flora to become established[
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.
]. Given the plant’s rapid growth, it can be used to give a quick cover on critical erosion sites, including droughty, steep, low-fertility slopes. Because it also adds nitrogen to the soil (through N-fixing bacteria), it can facilitate the establishment of grasses and other wildflowers in restoration seedings[
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.
].
For soil enrichment through nitrogen fixation and addition of organic matter, riverbank lupine can be seeded as a winter cover and green manure crop, or used in reforestation projects. From laboratory assays, nitrogen fixation rates of its root nodules appear high, but actual levels of increase in field soil nitrogen have not been fully quantified[
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.
Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2019-07-19. <temperate.theferns.info/plant/Lupinus+rivularis>

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