88 photographs › At a glance
- Jan, shaded
- Feb, shaded
- Mar, shaded
- Apr
- May, under 5 mm of rain
- Jun, under 5 mm of rain
- Jul
- Aug, shaded
- Sep
- Oct
- Nov, shaded
- Dec, shaded
Summary
Diplacus bigelovii is a species of monkeyflower known by the common name Bigelow's monkeyflower. It is native to the southwestern United States and Baja California, where it grows in desert and slope habitats. It was formerly known as Mimulus bigelovii.
Quoted from Wikipedia, "Diplacus bigelovii", CC BY-SA 4.0.
About the genus · Diplacus
Diplacus is a genus of flowering plants in the family Phrymaceae, which was traditionally placed in family Scrophulariaceae. It includes 49 species native to the western United States and northwestern Mexico. Most prefer dry and rocky areas.
Quoted from Wikipedia, "Diplacus", CC BY-SA 4.0.
Cultivation
Seasons
The rain rule reads a winter growing season: 70% of the median year's rain (119 mm of 163 mm) falls in November to March and August, cooler than the year (wet-season mean 14.0 °C against a yearly mean of 18.8 °C). Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: February and May to September.
Rain
163 mm in the median year at the habitat, 119 mm of it November to March and August. Wettest month February at 27 mm, driest month June at 2 mm; 2 months under 5 mm. Across the grid cells of the range the year's total runs 110 mm to 330 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 177 mm, is the year's rain at the top of the page; the 163 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: 19 to 55 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 17, the highest 90th-percentile month 55).
Warmth and air
Coldest: the 1st-percentile night over 44 years at a typical spot in the range is -2.8 °C, the absolute minimum -8.0 °C, 824 frost nights in 44 years, 18.7 a year (NASA POWER daily minima). Warmest: the 99th-percentile day is 42.8 °C. Monthly means: the coldest month's mean nightly low 3.4 °C in December (across the grid cells of the range -5.0 °C to 7.5 °C), the warmest month's mean daily high 36.8 °C in July (median year across the grid cells of the range, CHELSA). Cold floor: -2.8 °C, which is the 1st-percentile night over 44 years at a typical spot in the range (NASA POWER).
Relative humidity at the habitat: 36 to 48% 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 +214 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
Mean daily high from 14 °C in Jan and Dec to 37 °C in Jul; mean nightly low from 3 °C in Dec to 23 °C in Jul. The cold quarter, Nov to Jan, is the three months around the coldest month's mean nightly low. 163 mm of rain in the median year (the twelve monthly medians added), the wettest month Feb. The bands show the 10th to 90th percentile across 439 habitat cells. Over 44 years at a typical spot in the range (NASA POWER) the absolute minimum was -8.0 °C and the 99th-percentile day 42.8 °C; neither is dated to a month. Beneath: daily light integral and relative humidity through the year, each on its own scale.
Figures by month
| Figure | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day °C | 14 / 5–19 | 16 / 6–21 | 20 / 11–24 | 24 / 16–28 | 29 / 22–33 | 34 / 27–38 | 37 / 30–41 | 36 / 29–40 | 32 / 25–36 | 26 / 18–30 | 19 / 11–23 | 14 / 5–18 |
| Night °C | 4 / -6–8 | 5 / -4–9 | 7 / -1–11 | 10 / 3–14 | 15 / 8–19 | 19 / 13–23 | 23 / 17–27 | 22 / 16–27 | 19 / 12–23 | 13 / 6–17 | 7 / 0–12 | 3 / -5–8 |
| Rain mm | 23 / 17–52 | 27 / 17–55 | 22 / 13–45 | 9 / 3–23 | 4 / 2–15 | 2 / 1–8 | 8 / 5–20 | 14 / 7–23 | 10 / 6–16 | 11 / 6–20 | 13 / 7–28 | 20 / 13–45 |
| DLI | 21 / 19–23 | 27 / 25–30 | 37 / 36–39 | 47 / 45–48 | 52 / 51–53 | 55 / 54–55 | 52 / 51–53 | 47 / 46–49 | 41 / 39–42 | 32 / 30–34 | 24 / 21–25 | 19 / 17–21 |
| RH % | 48 / 45–52 | 48 / 44–52 | 45 / 42–50 | 41 / 37–48 | 39 / 35–46 | 36 / 32–44 | 38 / 34–43 | 40 / 35–44 | 39 / 36–44 | 41 / 39–45 | 44 / 41–48 | 47 / 44–50 |
How this section is made
Natural habitat
How this section is made
Photographs
Photographs: (c) Matt Berger, some rights reserved (CC BY); (c) Trevor Van Loon, some rights reserved (CC BY); author not stated, no rights reserved · CC0 (2); (c) glittergravel, some rights reserved (CC BY) (2).
Related
Similar habitat climate The 6 nearest by mean daily high, mean nightly low and rain, month by month. How.
Nama demissa Leafy nama Photo: CC BY, Matt Berger
Opuntia basilaris Beaver-tail prickly-pear Photo: CC BY-SA, paulexcoff
Chaenactis fremontii Pincushion-flower Photo: CC0, author not stated
Cucurbita palmata Coyote-melon Photo: CC BY-SA, Matt Lavin
Eschscholzia minutiflora Pygmy poppy Photo: CC BY, Matt Berger
Ericameria paniculata Mojave rabbitbrush Photo: CC BY, Aaron ListonOther Diplacus 16 in the reference
Diplacus aridus San Diego bush monkeyflower Photo: CC BY, Melanie J. Davis
Diplacus aurantiacus Orange bush monkey-flower Photo: CC BY, 66dodge
Diplacus × australis Phrymaceae Photo: CC0, Jasper Shide
Diplacus bicolor Harlequin monkeyflower Photo: CC BY, Jacob Saucier
Diplacus brevipes Wide-throat yellow monkey-flower Photo: CC0, author not stated
Diplacus calycinus Kaweah River bush monkeyflower Photo: CC BY, Sergey
Diplacus clevelandii Cleveland's bush monkeyflower Photo: CC BY, Eric Alan Isaacson
Diplacus grandiflorus Largeflower bush monkeyflower Photo: CC0, author not stated
Diplacus kelloggii Kellogg's monkeyflower Photo: CC BY, Kyle Elshoff
Diplacus linearis Chaparral bush monkeyflower Photo: CC BY, Daniel Kennedy
Diplacus longiflorus Southern bush monkeyflower Photo: CC BY, Matt Berger
Diplacus parviflorus Island bush monkeyflower Photo: CC BY, Matt Berger all 17 ›Names & registers
Also known as Eunanus bigelovii; Mimulus bigelovii; Mimulus bigelovii var. bigelovii; Mimulus bigelovii var. panamintensis. (GBIF Backbone)
The record
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 answeredasked 2026-10-22gbif.synonyms answeredasked 2026-10-22gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22wcvp.distribution answeredas of 2026-06-04gbif.occurrences answeredas of 2026-10-21GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21climate answeredasked 2026-10-22climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell 34.00_-115.625, lapse-corrected +214 m at 6.5 °C/kmwikidata answeredasked 2026-10-22wikipedia answeredasked 2026-10-22inat.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 2026-10-22inat.photos.cultivated not askedgbif.media answeredasked 2026-10-22openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshotEvery 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 48 datasets via GBIF.org; each carries its own licence.