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Baccharis malibuensis; photograph (c) Trevor Van Loon, some rights reserved (CC BY) CC BY(c) Trevor Van Loon, some rights reserved (CC BY) · observed growing wild · 2026-07-12

Baccharis malibuensis R.M.Beauch. & Henrickson

Malibu baccharis; Malibu coyote brush

Asteraceae · California

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Baccharis malibuensis, photograph (c) Trevor Van Loon, some rights reserved (CC BY)Baccharis malibuensis, photograph (c) Trevor Van Loon, some rights reserved (CC BY)Baccharis malibuensis, photograph (c) Trevor Van Loon, some rights reserved (CC BY)Baccharis malibuensis, photograph (c) Trevor Van Loon, some rights reserved (CC BY)Baccharis malibuensis, photograph (c) Trevor Van Loon, some rights reserved (CC BY)Baccharis malibuensis, photograph (c) Trevor Van Loon, some rights reserved (CC BY) 65 photographs ›
Habitat figures
Coldest month, mean nightly low
6.8°C
Jan at the habitat, not a floor; extremes not used (sea cell) CHELSA
Warmest month, mean daily high
28°C
Aug at the habitat CHELSA
Rain a year (median across the range)
456mm
6 months of 25 mm or more in the median year CHELSA
Open-sky light
18–52DLI
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 December 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

Baccharis malibuensis is a rare California species of shrubs in the family Asteraceae known by the common name Malibu baccharis.

Quoted from Wikipedia, "Baccharis malibuensis", CC BY-SA 4.0.

About the genus · Baccharis

Baccharis is a genus of perennials and shrubs in the aster family (Asteraceae). They are commonly known as baccharises but sometimes referred to as "brooms", because many members have small thin leaves resembling the true brooms. They are not at all related to these however, but belong to an entirely different lineage of eudicots. More on Wikipedia ›

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

Cultivation

Seasons

The rain rule reads a winter growing season: 70% of the median year's rain (343 mm of 456 mm) falls in December to March, cooler than the year (wet-season mean 11.9 °C against a yearly mean of 16.2 °C). Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: June to September.

Rain

456 mm in the median year at the habitat, 343 mm of it December to March. Wettest month February at 112 mm, driest months (2 at 1 mm); 3 months under 5 mm. Across the grid cells of the range the year's total runs 440 mm to 473 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 456 mm, is the year's rain at the top of the page; the 456 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: 18 to 52 mol/m²/day across the year (daily light integral, median year across the grid cells of the range, CHELSA).

Warmth and air
Temperature

Monthly means: the coldest month's mean nightly low 6.8 °C in January (across the grid cells of the range 5.5 °C to 7.3 °C), the warmest month's mean daily high 27.8 °C in August (median year across the grid cells of the range, CHELSA). Cold floor: none read. The nearest figure is 6.8 °C, the coldest month's mean nightly low, January, in the median year (CHELSA); a month's mean of its nightly lows is warmer than the nights a floor is read from. The daily extremes were read at a weather cell that is mostly sea and are not used.

Humidity

Relative humidity at the habitat: 51 to 60% 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. CHELSA monthly means, median year across the grid cells of the range. No cold floor is read without a daily extremes series; the coldest month's mean nightly low named in its sentence is not one. 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 Baccharis malibuensis through the yearWarmest month August, mean daily high 28 °C; coldest month January, mean nightly low 6.8 °C; 456 mm of rain in the median year (the twelve monthly medians added). Medians across the range, from CHELSA. Habitat months, northern hemisphere.0°5°10°15°20°25°30°35°°C · day and nightcold quarter0255075100125mm rainDLI 18–52RH 51–60%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 8 habitat cells, CHELSA cold quarter: the three months around the coldest month's mean nightly low DLI, mol/m²/dayRH %each on its own scale
Figures by month
JanFebMarAprMayJunJulAugSepOctNovDec
Day °C17 / 16–1717 / 17–1818 / 18–1920 / 19–2122 / 21–2325 / 24–2627 / 26–2928 / 27–2927 / 26–2824 / 23–2520 / 19–2017 / 16–17
Night °C7 / 6–77 / 6–88 / 7–910 / 9–1012 / 12–1315 / 14–1517 / 17–1818 / 18–1817 / 16–1714 / 13–1410 / 9–107 / 6–8
Rain mm98 / 94–101112 / 109–11766 / 63–6730 / 29–318 / 8–9211520 / 20–2146 / 42–4767 / 66–71
DLI20 / 19–2025 / 25–2635 / 34–3544 / 44–4449 / 49–5052 / 52–5251 / 51–5147 / 47–4739 / 39–4030 / 30–3122 / 22–2318 / 18–19
RH %52 / 51–5255 / 54–5557 / 56–5757 / 56–5760 / 58–6160 / 59–6159 / 57–6057 / 55–5856 / 54–5754 / 53–5551 / 50–5251 / 50–51

The daily extremes were read at a NASA POWER cell that is 44% land: neither it nor the next candidates whose coldest month's mean nightly low is within 2 °C of the median across cells sit in a POWER cell that is mostly land, and the rule reads a cold floor only from a cell that is mostly land, so none is read for this species. Nor is the coldest month's mean nightly low taken as one: it is a mean of a month's lows, not its coldest night. What that cell gave over 44 years: absolute minimum 0.0 °C, 1st-percentile night 4.4 °C, 99th-percentile day 31.5 °C.

How this section is made
Each figure is the median across the 8 grid cells holding the 36 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 1118:1226 (34.075, -118.675). 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 8 distinct grid cells holding 36 of the 36 in-range records; extremes and elevation at the typical cell 1118:1226 (its coldest month's mean nightly low nearest the median across cells, though its NASA POWER cell is only 44% land and none of the 7 next candidates within 2 °C of the median was mostly land); its position is the cell centre. Extremes: NASA POWER (MERRA-2) daily 1981–2024, cell 34.00_-118.750, lapse-corrected +197 m at 6.5 °C/km. Elevation: ETOPO 2022, 380 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.
NativeCalifornia · 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 marker34.099, -118.707 · in the densest population, 61 records (100% of those in range)
Evidence usedThe map marker rests on all 61 georeferenced records inside the native range; the climate across the range on the 36 of them placed to within 10 km; the map shows only the 14 openly licensed ones, which alone would put the marker 1 km away. 25 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 61 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Baccharis malibuensis, photograph 1did not loadBaccharis malibuensis, photograph 2did not loadBaccharis malibuensis, photograph 3did not loadBaccharis malibuensis, photograph 4did not loadBaccharis malibuensis, photograph 5did not loadBaccharis malibuensis, photograph 6did not load

Photographs: (c) Trevor Van Loon, some rights reserved (CC BY) (6).

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

Calochortus catalinae Calochortus catalinae Catalina mariposa-lily Photo: CC0, author not statedPhacelia grandiflora Phacelia grandiflora Large-flowered Phacelia Photo: CC BY, Cristhian MaceLeymus condensatus Leymus condensatus Giant wildrye Photo: CC BY, Sarah DillionAstragalus brauntonii Astragalus brauntonii Braunton's milk-vetch Photo: CC BY, klickloSalvia mellifera Salvia mellifera Black sage Photo: CC BY, Mike ButlerSalvia leucophylla Salvia leucophylla Purple sage Photo: CC BY, Chris Sulots

Other Baccharis 41 in the reference

Baccharis aliena Baccharis aliena Asteraceae Photo: CC BY, Magdalena Carabio FotiBaccharis angustifolia Baccharis angustifolia Narrow-leaf baccharis Photo: CC BY, Neal KelsoBaccharis articulata Baccharis articulata Asteraceae Photo: CC BY, Pablo H CapovillaBaccharis bogotensis Baccharis bogotensis Asteraceae Photo: CC BY, Nicolás Baresch UribeBaccharis boliviensis Baccharis boliviensis Asteraceae Photo: CC0, Alfredo F. Fuentes ClarosBaccharis caespitosa Baccharis caespitosa Asteraceae Photo: CC BY, Yuri SofronovBaccharis conferta Baccharis conferta Chinese brush Photo: CC BY, Forest Botial-JarvisBaccharis crispa Baccharis crispa Asteraceae Photo: CC BY, LauuBaccharis dioica Baccharis dioica Broombush false willow Photo: CC BY-SA, Stan ShebsBaccharis dracunculifolia Baccharis dracunculifolia Asteraceae Photo: CC BY, Victoria ProsdocimoBaccharis genistelloides Baccharis genistelloides Asteraceae Photo: CC BY-SA, Carlo BresciaBaccharis glomeruliflora Baccharis glomeruliflora Silverling Groundsel Bush Photo: CC BY, xanderferret all 42 ›

Names & registers

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Asteraceae
Described by
R.M.Beauch. & Henrickson
Native to
California
Wild records
61 in range · 14 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 2026-10-21
GBIF species record gbif.species answeredasked 2026-10-21
GBIF synonyms gbif.synonyms answeredasked 2026-10-21
GBIF common names gbif.vernacular answeredasked 2026-10-21names fetched 2026-10-21
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 2026-10-21
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-21NASA POWER (MERRA-2) daily 1981–2024, cell 34.00_-118.750, lapse-corrected +197 m at 6.5 °C/km; read, and set aside: NASA POWER's cell is mostly sea (44% land), so no cold floor is shown
Wikidata wikidata answeredasked 2026-10-21
Wikipedia wikipedia answeredasked 2026-10-21
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 2026-10-21none 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 11 datasets via GBIF.org; each carries its own licence.

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