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Lupinus argenteus; photograph author not stated, no rights reserved CC0author not stated, no rights reserved · observed growing wild · 2025-10-04

Lupinus argenteus Pursh

Silvery lupine; Silver-stem Lupine; Silver-stemmed lupine

Fabaceae · Alberta, British Columbia +19

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Lupinus argenteus, photograph (c) Jo Roberts, some rights reserved (CC BY)Lupinus argenteus, photograph (c) Daughter Dad, some rights reserved (CC BY)Lupinus argenteus, photograph (c) Daughter Dad, some rights reserved (CC BY)Lupinus argenteus, photograph author not stated, no rights reservedLupinus argenteus, photograph author not stated, no rights reservedLupinus argenteus, photograph author not stated, no rights reserved 51 photographs ›
Habitat figures
Cold floor (1 night in 100)
-17.0°C
Record low -26.7 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
26°C
Jul at the habitat CHELSA
Rain a year (median across the range)
530mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
15–50DLI
Lowest to highest month (DLI) CHELSA
The year in your months, northern hemisphere
  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec
Rain spread: 70% of the median year's rain takes 8 months, so no short rainy season. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

Summary

Lupinus argenteus is a species of lupine known by the common name silvery lupine. It is native to much of western North America from the southwestern Canadian provinces to northernmost Mexico and as far east as the Great Plains. It grows in several types of habitats, including sagebrush, grassland, and forests.

Quoted from Wikipedia, "Lupinus argenteus", CC BY-SA 4.0.

About the genus · Lupinus

Lupinus, commonly known as lupin, lupine, or regionally bluebonnet, is a genus of plants in the legume family Fabaceae. The genus includes over 199 species, with centres of diversity in North and South America. Smaller centres occur in North Africa and the Mediterranean. More on Wikipedia ›

Quoted from Wikipedia, "Lupinus", CC BY-SA 4.0.

Cultivation

Seasons

The rain rule reads no short rainy season: 70% of the median year's rain (378 mm of 532 mm) takes 8 months, March to September and December. Mean temperature moves 24.7 °C between the warmest and coldest month. Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: September to March and June.

Rain

532 mm in the median year at the habitat, 378 mm of it March to September and December. Wettest month May at 59 mm, driest month February at 37 mm. Across the grid cells of the range the year's total runs 310 mm to 960 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 530 mm, is the year's rain at the top of the page; the 532 mm here is the median year's, the twelve monthly medians added, which the rain rule reads. Habitat calendar, northern hemisphere; median year across the grid cells of the range, CHELSA.

Light

Open sky over the habitat: 15 to 50 mol/m²/day across the year (daily light integral, median year across the grid cells of the range, CHELSA; the lowest 10th-percentile month across the cells is 10, the highest 90th-percentile month 54).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is -17.0 °C, the absolute minimum -26.7 °C, 8,920 frost nights in 44 years, 202.7 a year (NASA POWER daily minima). Warmest: the 99th-percentile day is 30.9 °C. Monthly means: the coldest month's mean nightly low -10.7 °C in December (across the grid cells of the range -15.8 °C to -4.9 °C), the warmest month's mean daily high 25.6 °C in July (median year across the grid cells of the range, CHELSA). Cold floor: -17.0 °C, which is the 1st-percentile night over 44 years at a typical spot in the range (NASA POWER).

Humidity

Relative humidity at the habitat: 47 to 57% across the year (monthly means, median year across the grid cells of the range, CHELSA). A figure about the air, saying nothing about how the plant takes water.

How this section is made

Each card states this species' habitat figures with their sources, and what two fixed rules read from them; nothing here says what the plant does, wants or tolerates. The rules · the terms.

Seasons. Read from the median year of CHELSA monthly rainfall and mean temperature across the grid cells of the range: the rain rule takes the smallest set of months carrying 70% of the rain and calls it winter when its mean is more than half a degree below the year's, summer when more than that above, and neither in between; the temperature rule, used only under 120 mm, names the cooler six months when they are at least a degree cooler than the other six. Months are shifted for the other hemisphere only where the temperature curve moves 4 °C or more and the habitat lies 10° or more from the equator. A reading of the curves, not an observation of the plant.

Rain. CHELSA monthly precipitation, median year across the grid cells of the range. The rain that falls where the species is recorded; nothing about how the plant takes water.

Light. CHELSA shortwave radiation at each envelope cell, a daily-mean flux taken to a daily total and converted at 2.07 mol of PAR per MJ. The sky over the habitat, measured; what reaches a plant under a rock, a shrub or a shade cloth is not.

Temperature. NASA POWER daily minima and maxima over 44 years at a typical spot in the range, lapse-corrected +905 m to its elevation; CHELSA monthly means, median year across the grid cells of the range. The cold floor is the 1st-percentile night named in its sentence. Not a measured survival limit for any plant in a pot.

Humidity. CHELSA relative humidity, median year across the grid cells of the range.

Climate across the habitat

Habitat months, northern hemisphere

Habitat climate of Lupinus argenteus through the yearWarmest month July, mean daily high 26 °C; coldest month December, mean nightly low -10.7 °C; 532 mm of rain in the median year (the twelve monthly medians added). Medians across the range, from CHELSA; the extremes at the edge from NASA POWER. Habitat months, northern hemisphere.-30°-20°-10°0°10°20°30°40°frost30.9° 99th-percentile day, NASA POWER-26.7° lowest night in 44 years, NASA POWER°C · day and nightcold quarter0255075100125mm rainDLI 15–50RH 47–57%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 905 habitat cells, CHELSA cold quarter: the three months around the coldest month's mean nightly low extremes over 44 years at a typical spot in the range, from NASA POWER, marked at the edge, in no month DLI, mol/m²/dayRH %each on its own scale
Figures by month
JanFebMarAprMayJunJulAugSepOctNovDec
Day °C0 / -5–51 / -4–75 / 0–1110 / 4–1616 / 10–2122 / 16–2726 / 21–3125 / 20–2920 / 15–2513 / 8–185 / 0–10-1 / -5–5
Night °C-11 / -15–-5-10 / -14–-4-6 / -11–-1-2 / -8–23 / -3–78 / 2–1211 / 6–1611 / 6–157 / 2–111 / -4–5-6 / -12–-1-11 / -16–-5
Rain mm38 / 14–9237 / 15–8346 / 24–8649 / 24–8459 / 18–10044 / 12–8849 / 14–8447 / 13–8942 / 17–7441 / 24–7938 / 17–9142 / 17–105
DLI17 / 12–2224 / 19–2833 / 28–3741 / 36–4646 / 41–5150 / 45–5448 / 46–5243 / 40–4636 / 31–3926 / 21–3118 / 13–2315 / 10–19
RH %57 / 49–6457 / 50–6255 / 49–5953 / 44–5651 / 41–5648 / 37–5447 / 39–5248 / 40–5349 / 43–5351 / 46–5555 / 48–6257 / 49–64
How this section is made
Each figure is the median across the 905 grid cells holding the 1142 in-range records, with the 10th–90th percentile span across those cells after the slash where it differs. A dash is a month one or more of those cells has no figure for in the grid (a variable CHELSA does not carry there), so no median is taken rather than one over fewer cells. Extremes and elevation were read at a typical spot in the range, cell 1071:1357 (36.425, -112.125). Over 44 years there: absolute minimum -26.7 °C, 1st-percentile night -17.0 °C, 99th-percentile day 30.9 °C. Normals: CHELSA V2.1 1981–2010 climatology, 0.05° cells (each the mean of ~36 1 km pixels). Across the range: median and 10th–90th percentile of each month across the 905 distinct grid cells holding 1142 of the 1142 in-range records; extremes and elevation at the typical cell 1071:1357 (its coldest month's mean nightly low nearest the median across cells); its position is the cell centre. Extremes: NASA POWER (MERRA-2) daily 1981–2024, cell 36.50_-111.875, lapse-corrected +905 m at 6.5 °C/km. Elevation: ETOPO 2022, 2695 m (cell mean).

Natural habitat

Native range as published by WCVP; the marker is where the records are densest and decides nothing: the climate was read across the cells of the in-range records placed well enough to read one, not at the marker.
Openly licensed records inside the range, framed on where they fall.
NativeAlberta, British Columbia, Saskatchewan, Colorado, Idaho, Montana, Oregon, Washington, Wyoming, North Dakota, Nebraska, Oklahoma, South Dakota, Arizona, California, Nevada, Utah, New Mexico, Texas, Mexico Northeast, Mexico Northwest · regions are the level-3 units of the World Geographical Scheme for Recording Plant Distributions, as Kew's World Checklist records ranges, some under historical names such as Yugoslavia or Czechoslovakia (how).
Map marker39.632, -105.816 · in the densest population, 346 records (19% of those in range)
Kew's description“perennial” · “temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 1834 georeferenced records inside the native range; the climate across the range on the 1142 of them placed to within 10 km; the map shows only the 952 openly licensed ones, which alone would put the marker 46 km away. 2 records outside the WCVP native range not used. 692 in-range records are placed to worse than 10 km, or with no stated accuracy (admitted only as a person's observation to three decimals), and stay on the map but off the climate.
How this section is made
The map marker: the openly licensed record nearest the middle of the densest 1° population of the 1834 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Lupinus argenteus, photograph 1did not loadLupinus argenteus, photograph 2did not loadLupinus argenteus, photograph 3did not loadLupinus argenteus, photograph 4did not loadLupinus argenteus, photograph 5did not loadLupinus argenteus, photograph 6did not load

Photographs: (c) Jo Roberts, some rights reserved (CC BY); (c) Daughter Dad, some rights reserved (CC BY) (2); author not stated, no rights reserved · CC0 (3).

Similar habitat climate The 6 nearest by mean daily high, mean nightly low and rain, month by month. How.

Mahonia repens Mahonia repens Creeping mahonia Photo: CC0, RodCastilleja linariifolia Castilleja linariifolia Wyoming Indian paintbrush Photo: CC BY, Kate KruesiSymphyotrichum ascendens Symphyotrichum ascendens Western aster Photo: CC BY, Daughter DadClematis columbiana Clematis columbiana Blue clematis Photo: CC BY, LyraeSymphoricarpos oreophilus Symphoricarpos oreophilus Mountain snowberry Photo: Public domain, JW StockertPicea pungens Picea pungens Colorado spruce Photo: CC BY, Jane Weeden

Other Lupinus 56 in the reference

Lupinus albicaulis Lupinus albicaulis Sickle-keel lupine Photo: CC BY, ConquestLupinus albifrons Lupinus albifrons Silver lupine Photo: CC BY, Sarah DillionLupinus albus Lupinus albus White lupin Photo: CC BY, Umut Nuri ErdoğanLupinus altimontanus Lupinus altimontanus Fabaceae Photo: CC BY, Humber AlbertoLupinus ammophilus Lupinus ammophilus Sand lupine Photo: CC BY, Anders HastingsLupinus angustifolius Lupinus angustifolius Narrow-leaved lupin Photo: CC BY-SA, Tony RebeloLupinus arboreus Lupinus arboreus Tree lupin Photo: CC0, author not statedLupinus arbustus Lupinus arbustus Long-spurred lupine Photo: CC0, author not statedLupinus arcticus Lupinus arcticus Arctic lupine Photo: CC BY, Peter L AchuffLupinus arizonicus Lupinus arizonicus Arizona lupine Photo: CC BY, Matt BergerLupinus benthamii Lupinus benthamii Spider lupine Photo: CC BY, graham_coopLupinus bicolor Lupinus bicolor Miniature lupine Photo: CC0, author not stated all 57 ›

Names & registers

Also known as Lupinus argentus; Lupinus foliosus; Lupinus holosericeus; Lupinus holosericeus var. holosericeus; Lupinus leucopsis var. utahensis and 1 more. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Fabaceae
Described by
Pursh
Native to
Alberta, British Columbia, Saskatchewan +18
Wild records
1834 in range · 952 open

Every figure here is derived from public data by a stated rule and names its source; nothing about this species is written for its page by a person or by AI, apart from the marked, credited quotations. How →

Where this page came from built 2026-10-22
GBIF species record gbif.species answeredasked 2026-10-22
GBIF synonyms gbif.synonyms answeredasked 2026-10-22
GBIF common names gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22
WCVP native range wcvp.distribution answeredas of 2026-06-04
GBIF occurrence records gbif.occurrences answeredas of 2026-10-21GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21; 2 records within 1 km of a botanic garden, herbarium or zoo left out (2 at a botanic garden or arboretum; Wikidata's list)
Habitat climate climate answeredasked 2026-10-22
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell 36.50_-111.875, lapse-corrected +905 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist photographs, wild inat.photos.wild answeredasked 2026-10-22from iNaturalist's open data of 2026-09-27: research-grade observations with an open-licence photograph, the 24 whose photographs iNaturalist received last (the open data holds no votes); filled 2026-10-22
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media answeredasked 2026-10-22
OpenAlex papers openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshot

Every source is recorded as having answered, reported nothing, refused, failed, not been asked, or answered twice where one answer is taken (“not taken: two items answered”), and, for a source asked when this page was built, when: the figures are as the source held them that day; a source read from a file (Kew's World Checklist, a GBIF download) says "as of" the file's day instead; a row carried from an earlier build of the page names that build instead. Only “nothing to report” is ever shown as an absence. Records came from 97 datasets via GBIF.org; each carries its own licence.

Cultifolio

Opening your plants…