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Gilia millefoliata; photograph (c) Gabriel Campbell-Martinez, some rights reserved (CC BY) CC BY(c) Gabriel Campbell-Martinez, some rights reserved (CC BY) · observed growing wild · 2025-06-29

Gilia millefoliata Fisch. & C.A.Mey.

Dark-eyed gilia; Manyleaf gilia

Polemoniaceae · Oregon, California

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Gilia millefoliata, photograph author not stated, no rights reservedGilia millefoliata, photograph author not stated, no rights reservedGilia millefoliata, photograph (c) Gabriel Campbell-Martinez, some rights reserved (CC BY)Gilia millefoliata, photograph author not stated, no rights reservedGilia millefoliata, photograph author not stated, no rights reservedGilia millefoliata, photograph author not stated, no rights reserved 43 photographs ›
Habitat figures
Cold floor (1 night in 100)
3.9°C
Record low -0.8 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
19°C
Aug and Sep at the habitat CHELSA
Rain a year (median across the range)
1,408mm
9 months of 25 mm or more in the median year CHELSA
Open-sky light
10–50DLI
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
Wet winters: the rain comes November to March, read as a winter growing season. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

Summary

Gilia millefoliata is a species of flowering plant in the phlox family known by the common name manyleaf gilia. It is native to the coastline of Oregon and northern California, where it grows in sand dune habitat.

Quoted from Wikipedia, "Gilia millefoliata", CC BY-SA 4.0.

About the genus · Gilia

Gilia is a genus of flowering plants in the Polemoniaceae family and is related to phlox. It includes 39 species native to the Americas, ranging from British Columbia to Texas and northern Mexico, and to Ohio, in North America, and from Ecuador and Peru to southern Chile and Argentina in South America. These Western native plants are best sown in sunny, well-draining soil in the temperate and tropical regions of the Americas, where they occur mainly in desert or semi-desert habitats

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

Cultivation

Seasons

The rain rule reads a winter growing season: 70% of the median year's rain (1,098 mm of 1,395 mm) falls in November to March, cooler than the year (wet-season mean 10.3 °C against a yearly mean of 12.4 °C). Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: May to September.

Rain

1,395 mm in the median year at the habitat, 1,098 mm of it November to March. Wettest month December at 289 mm, driest month July at 5 mm. Across the grid cells of the range the year's total runs 731 mm to 2,282 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,408 mm, is the year's rain at the top of the page; the 1,395 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: 10 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 9, the highest 90th-percentile month 51).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 3.9 °C, the absolute minimum -0.8 °C, 3 frost nights in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 27.5 °C. Monthly means: the coldest month's mean nightly low 7.5 °C in January (across the grid cells of the range 6.7 °C to 8.3 °C), the warmest month's mean daily high 18.5 °C in August and September (median year across the grid cells of the range, CHELSA). Cold floor: 3.9 °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: 63 to 68% 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 -176 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 Gilia millefoliata through the yearWarmest months August and September, mean daily high 19 °C; coldest month January, mean nightly low 7.5 °C; 1,395 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.-5°0°5°10°15°20°25°30°frost27.5° 99th-percentile day, NASA POWER-0.8° lowest night in 44 years, NASA POWER°C · day and nightcold quarter0100200300400500mm rainDLI 10–50RH 63–68%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 39 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 °C12 / 11–1312 / 12–1413 / 12–1514 / 12–1615 / 13–1917 / 14–2118 / 15–2319 / 16–2319 / 17–2217 / 15–1914 / 13–1612 / 11–13
Night °C8 / 7–88 / 7–88 / 7–99 / 8–1010 / 10–1112 / 11–1312 / 11–1413 / 12–1513 / 12–1511 / 11–1310 / 9–118 / 7–9
Rain mm238 / 141–339192 / 125–293186 / 103–288105 / 42–18755 / 21–10926 / 5–605 / 1–1210 / 2–1917 / 6–4279 / 38–155193 / 92–329289 / 147–449
DLI12 / 11–1518 / 16–2126 / 24–3036 / 33–4044 / 41–4748 / 46–5050 / 47–5144 / 42–4535 / 34–3724 / 22–2714 / 12–1810 / 9–14
RH %64 / 62–6964 / 63–6765 / 64–6765 / 62–6665 / 62–6865 / 61–6966 / 62–7068 / 62–7166 / 61–7165 / 62–6764 / 62–6963 / 60–69
How this section is made
Each figure is the median across the 39 grid cells on land that hold in-range records (80 records in those cells; 1 more cell holds records but no land by the elevation layer, so those records sit at sea and the cell is left out), 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 1011:1124 (39.425, -123.775). Over 44 years there: absolute minimum -0.8 °C, 1st-percentile night 3.9 °C, 99th-percentile day 27.5 °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 39 distinct grid cells holding 80 of the 84 in-range records (1 further cell with records at sea, by the elevation layer, left out); extremes and elevation at the typical cell 1011:1124 (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 39.50_-123.750, lapse-corrected -176 m at 6.5 °C/km. Elevation: ETOPO 2022, 70 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.
NativeOregon, California · 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 marker40.728, -124.094 · in the densest population, 136 records (76% of those in range)
Kew's description“annual” · “temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 179 georeferenced records inside the native range; the climate across the range on the 80 of them in the land cells it reads, of 84 placed to within 10 km; the map shows only the 31 openly licensed ones, which alone would put the marker 132 km away. 4 records outside the WCVP native range not used. 95 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 179 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Gilia millefoliata, photograph 1did not loadGilia millefoliata, photograph 2did not loadGilia millefoliata, photograph 3did not loadGilia millefoliata, photograph 4did not loadGilia millefoliata, photograph 5did not loadGilia millefoliata, photograph 6did not load

Photographs: author not stated, no rights reserved · CC0 (5); (c) Gabriel Campbell-Martinez, some rights reserved (CC BY).

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

Angelica hendersonii Angelica hendersonii Henderson's angelica Photo: CC BY, Ryan DonnellyMorella californica Morella californica California wax-myrtle Photo: CC BY, Bruce Homer-SmithHelenium bolanderi Helenium bolanderi Coastal sneezeweed Photo: CC BY, Ryan DonnellyAbronia latifolia Abronia latifolia Yellow sand-verbena Photo: CC BY, Murray McGooganSolidago spathulata Solidago spathulata Coast goldenrod Photo: CC0, author not statedErysimum menziesii Erysimum menziesii Menzies's wallflower Photo: CC0, author not stated

Other Gilia 4 in the reference

Gilia achilleifolia Gilia achilleifolia California gila Photo: CC0, author not statedGilia capitata Gilia capitata Bluehead gilia Photo: CC BY, Max MileyGilia tenuiflora Gilia tenuiflora Greater yellowthroat gilia Photo: CC BY, Henrik KibakGilia tricolor Gilia tricolor Bird's-eyes Photo: CC BY, Steve Matson

Names & registers

Also known as Gilia millefoliata var. maritima; Gilia multicaulis subsp. millefoliata; Gilia multicaulis var. millefoliata. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Polemoniaceae
Described by
Fisch. & C.A.Mey.
Native to
Oregon, California
Wild records
179 in range · 31 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
Habitat climate climate answeredasked 2026-10-22
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell 39.50_-123.750, lapse-corrected -176 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22IPNI and POWO linked by Kew's number for Gilia millefoliata Fisch. & C.A.Mey. (the item's: IPNI 689080-1, POWO 110271-2)
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 2026-10-22none of the photographs on this page is credited to GBIF: those shown are other sources', and GBIF's were the same photographs or were set aside by the photograph rules
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 23 datasets via GBIF.org; each carries its own licence.

Cultifolio

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