Golden Bean
Thermopsis rhombifolia
Pollinator plantNitrogen fixer

(c) Matt Lavin, some rights reserved (CC BY-SA)
Growing it
| When | Flowers May to June |
|---|---|
| Type | wildflower |
| Sun | Full sun |
| Water | Low |
| Soil | pH 6–8 |
| Hardiness | zone 3–7 |
| Mature height | 0.4 m |
| Mature spread | 0.45 m |
| Spacing | 0.3 m |
| Years to maturity | 2 |
| Bloom | May–Jun |
| Flower colour | Yellow read from a published flora |
| In bloom | May June |
| Native to | AB, SK |
leaves in threes about 6 cm long
Where it has been recorded
Which ecoregions the records fall in
- Fescue Grassland south AB: 2359 records, high confidence
- Aspen Parkland central AB / SK: 1150 records, high confidence
- Moist Mixed Grassland south AB / SK: 959 records, high confidence
- Mixed Grassland south AB / SK: 532 records, high confidence
- Cypress Upland south AB / SK: 248 records, high confidence
- Northern Continental Divide south AB: 73 records, high confidence
- Boreal Transition central AB / SK: 58 records, high confidence
- Western Alberta Upland central AB: 56 records, high confidence
- Eastern Continental Ranges central AB: 33 records, high confidence
- Mid-Boreal Uplands central AB / SK: 4 records, low confidence
These are counts of records collected somewhere in the region, which is the resolution of the evidence: the map above shows where inside it. A region with 3 records is not the same claim as one with three hundred, so the count travels with the region. A region missing from this list means nobody has recorded it there, which is not the same as the plant being absent. Records within 900 m of a border count for neither side, because the border is not drawn finely enough to say which one they are on. Source: GBIF occurrence search + PRESERVED_SPECIMEN pass, retrieved 2026-08-24. Boundaries digitised from the National Ecological Framework for Canada v2.2 (Ecological Stratification Working Group 1995), simplified to about 900 m for display: an outline is accurate to roughly a kilometre, not to the metre. How these counts are made.
See every observation, live and current, on GBIF or iNaturalist.
Documented animals
20 documented relationships.
nectar for
- American Bumble Bee Specimen records from iNaturalist.org
- Brown-belted Bumble Bee Specimen records from iNaturalist.org
- Brown-tailed Bumble Bee Specimen records from www.bumblebeewatch.org
- Central Bumble Bee Specimen records from iNaturalist.org
- Cryptic Bumble Bee Specimen records from iNaturalist.org
- Drone Fly Specimen records from iNaturalist.org
- Erynnis persius Specimen records from iNaturalist.org
- Golden Northern Bumble Bee Specimen records from iNaturalist.org
- Half-black Bumble Bee Specimen records from www.bumblebeewatch.org
- Hunt's Bumble Bee Specimen records from iNaturalist.org
- Nevada Bumble Bee Specimen records from iNaturalist.org
- Orange-banded Bumble Bee Specimen records from www.bumblebeewatch.org
- Osmia bucephala Specimen records from iNaturalist.org
- Polygonia satyrus Specimen records from iNaturalist.org
- Red-belted Bumble Bee Specimen records from www.bumblebeewatch.org
- Silvery Blue Specimen records from iNaturalist.org
- Syrphus opinator Specimen records from iNaturalist.org
- Tricoloured Bumble Bee Specimen records from iNaturalist.org
- Two-ranked Bumble Bee Specimen records from www.bumblebeewatch.org
- Western Bumble Bee Specimen records from iNaturalist.org
Also worth knowing
Safety
High toxicity to pets; High toxicity to people
Buying it
About $8–$16 per plant (estimate), usually from a native-plant nursery. Estimate (herb default); AB retail as of 2026
Where these numbers came from
- Flower detail: not verified, a genus-level estimate