Overview

Distribution

National Distribution

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Localities documented in Tropicos sources

Thermopsis rhombifolia var. rhombifolia :
Canada (North America)
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO 63110 USA

Source: Missouri Botanical Garden

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Localities documented in Tropicos sources

Thermopsis rhombifolia (Nutt. ex Pursh) Richardson:
Canada (North America)
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Thermopsis rhombifolia var. arenosa (A. Nelson) Larisey:
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Thermopsis rhombifolia var. annulocarpa (A. Nelson) L.O. Williams:
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Physical Description

Morphology

Physical Description

Perennial, Herbs, Plants with rhizomes or suckers, Nodules present, Stems erect or ascending, Stems less than 1 m tall, Stems solid, Stems or young twigs glabrous or sparsely glabrate, Stems or young twigs sparsely to densely hairy, Leaves alternate, Leaves petiolate, Stipules conspicuous, Stipules green, triangulate to lanceolate or foliaceous, Stipules persistent, Stipules free, Leaves compound, Leaves palm ately 2-3 foliate, Leaves odd pinnate, Leaf or leaflet margins entire, Leaflets opposite, Leaflets 3, Leaves hairy on one or both surfaces, Inflorescences racemes, Inflorescence terminal, Bracts conspicuously present, Flowers zygomorphic, Calyx 5-lobed, Calyx hairy, Petals separate, Corolla papilionaceous, Petals clawed, Petals orange or yellow, Banner petal suborbicular, broadly rounded, Wing petals narrow, oblanceolate to oblong, Wing petals auriculate, Wing tips obtuse or rounded, Keel petals auriculate, spurred, or gibbous, Keel tips obtuse or rounded, not beaked, Stamens 9-10, Stamens completely free, separate, Filaments glabrous, Style terete, Style persistent in fruit, Fruit a legume, Fruit unilocular, Fruit freely dehiscent, Fruit elongate, straight, Fruit strongly curved, falcate, bent, or lunate, Fruit exserted from calyx, Fruit compressed between seeds, Fruit glabrous or glabrate, Fruit hairy, Fruit 3-10 seeded, Seeds ovoid to rounded in outline, Seed surface smoo th, Seeds olive, brown, or black.
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Dr. David Bogler

Source: USDA NRCS PLANTS Database

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Type Information

Isotype for Thermopsis arenosa A. Nelson
Catalog Number: US 859303
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): A. Nelson
Year Collected: 1897
Locality: Laramie Hills., Albany, Wyoming, United States, North America
  • Isotype: Nelson, A. 1898. Bot. Gaz. 25: 276.
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Source: National Museum of Natural History Collections

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Isotype for Thermopsis arenosa A. Nelson
Catalog Number: US 582023
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): A. Nelson
Year Collected: 1897
Locality: Wyoming, United States, North America
  • Isotype: Nelson, A. 1898. Bot. Gaz. 25: 276.
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© Smithsonian Institution, National Museum of Natural History, Department of Botany

Source: National Museum of Natural History Collections

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Molecular Biology and Genetics

Molecular Biology

Barcode data: Thermopsis rhombifolia

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Thermopsis rhombifolia

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 3
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: N5 - Secure

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

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Wikipedia

Thermopsis rhombifolia

Thermopsis rhombifolia, also known as Golden Bean, Buffalo Bean, Wet Tooth, and Buffalo Flower, is a hardy perennial native to the North American plains. [1]

A member of the pea family, it grows in grassland, hillsides, and patchy woodland areas to a height of about 30 cm, and produces bright yellow golden flowers about a centimetre long. The flowers were commonly used by the natives as a source of yellow dye and were boiled in a tea as a cure for stomach ailments for people and horses. The plant has toxic properties if ingested; symptoms of poisoning include vomiting, dizziness, and abdominal pain.[2]

This plant is a beautiful addition to an early spring garden, but is extremely aggressive and must be contained[citation needed].

References[edit]

  1. ^ Stories and Spaces - Buffalo Bean Retrieved 25 April 2006
  2. ^ Case series of Thermopsis exposure Retrieved 25 April 2006
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Names and Taxonomy

Taxonomy

Comments: The varieties of Thermopsis rhombifolia have been moved to other species or recognized at the species level in Kartesz' 1999 Floristic Synthesis.

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