2 photographs › At a glance
- Jan
- Feb
- Mar
- Apr
- May, shaded
- Jun, shaded
- Jul, shaded
- Aug, shaded
- Sep, shaded
- Oct
- Nov
- Dec
From few records: 5 records in 5 grid cells. The records.
Summary
Mathiasella is a monotypic genus of flowering plants belonging to the family Apiaceae. It is in the Tribe Selineae. The genus only contains one known species, Mathiasella bupleuroides Constance & C.L.Hitchc.
Quoted from Wikipedia, "Mathiasella", CC BY-SA 4.0.
Cultivation
Seasons
The rain rule reads a summer growing season: 70% of the median year's rain (666 mm of 929 mm) falls in May to September, warmer than the year (wet-season mean 16.1 °C against a yearly mean of 12.7 °C). Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: November to March.
Rain
929 mm in the median year at the habitat, 666 mm of it May to September. Wettest month September at 188 mm, driest months (2 at 21 mm). Across the grid cells of the range the year's total runs 822 mm to 1,101 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 912 mm, is the year's rain at the top of the page; the 929 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: 25 to 43 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 23, the highest 90th-percentile month 43).
Warmth and air
Monthly means: the coldest month's mean nightly low 3.0 °C in January (across the grid cells of the range 1.3 °C to 8.7 °C), the warmest month's mean daily high 21.3 °C in May (median year across the grid cells of the range, CHELSA). Cold floor: none read. The nearest figure is 3.0 °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 whose ground is too far above or below the typical spot to correct for, and are not used.
Relative humidity at the habitat: 56 to 64% 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
From few records: this habitat climate is read from 5 records in 5 grid cells; a page says so under 12 records or 5 cells, and shows the figures as read.
Habitat months, northern hemisphere
Mean daily high from 14 °C in Jan to 21 °C in Apr, May, Jun, Jul and Aug; mean nightly low from 3 °C in Jan to 12 °C in Jun. The cold quarter, Dec to Feb, is the three months around the coldest month's mean nightly low. 929 mm of rain in the median year (the twelve monthly medians added), the wettest month Sep. The bands show the 10th to 90th percentile across 5 habitat cells. 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 / 13–19 | 16 / 15–22 | 18 / 17–24 | 21 / 20–26 | 21 / 20–28 | 21 / 20–29 | 21 / 19–29 | 21 / 19–29 | 19 / 17–27 | 18 / 17–25 | 16 / 15–22 | 15 / 14–20 |
| Night °C | 3 / 1–9 | 4 / 2–10 | 6 / 4–12 | 8 / 7–15 | 11 / 9–18 | 12 / 10–19 | 11 / 9–19 | 11 / 9–19 | 11 / 9–18 | 9 / 7–16 | 6 / 4–12 | 4 / 2–9 |
| Rain mm | 33 / 31–38 | 22 / 19–24 | 27 / 25–33 | 57 / 56–72 | 108 / 103–141 | 121 / 108–149 | 116 / 94–128 | 133 / 103–138 | 188 / 162–229 | 82 / 70–101 | 21 / 17–25 | 21 / 17–22 |
| DLI | 25 / 24–29 | 31 / 29–34 | 37 / 36–40 | 41 / 40–43 | 42 / 42–43 | 43 / 41–43 | 43 / 41–43 | 41 / 40–42 | 35 / 34–36 | 32 / 30–34 | 28 / 26–31 | 25 / 23–28 |
| RH % | 57 / 53–61 | 57 / 52–60 | 56 / 51–59 | 57 / 53–59 | 59 / 56–61 | 61 / 59–62 | 61 / 59–62 | 61 / 59–62 | 64 / 62–66 | 60 / 59–62 | 58 / 54–60 | 56 / 53–60 |
The daily extremes were not used: the correction for elevation, +1115 m, is beyond the 1,000 m either way that a lapse rate is applied over, so the weather cell's ground is other terrain than the typical spot's. So no cold floor is read for this species, and the coldest month's mean nightly low is not taken as one. What that cell gave, so corrected, over 44 years: absolute minimum -12.1 °C, 1st-percentile night -4.5 °C.
How this section is made
Natural habitat
How this section is made
Photographs
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Photographs: peganum from Henfield, England, CC BY-SA 2.0, via Wikimedia Commons.
Related
Similar habitat climate The 6 nearest by mean daily high, mean nightly low and rain, month by month. How.
Mammillaria glassii Cactaceae Photo: CC BY-SA, Francisco Martínez González
Picea martinezii Martinez's Spruce Photo: CC BY-SA, Juan Cruzado Cortés
Abies vejarii Vejar's Fir Photo: CC BY, Adriana Nelly Correa Sandoval
Arenaria lanuginosa Spread sandwort Photo: CC0, author not stated
Agave gentryi Asparagaceae Photo: CC BY, Luc Wyn
Pinus johannis Johann's pine Photo: CC BY-SA, M. Socorro González ElizondoNames & registers
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 24.00_-99.375, lapse-corrected +1115 m at 6.5 °C/km; read, and set aside: the correction for elevation, +1115 m, is beyond the 1,000 m either way that a lapse rate is applied over, so the weather cell's ground is other terrain than the typical spot's, so no cold floor is shownwikidata answeredasked 2026-10-22wikipedia answeredasked 2026-10-22Wikipedia redirects Mathiasella bupleuroides to Mathiasella, this species' genus (Q10327367), which holds one accepted species in Kew's WCVPinat.photos.wild nothing to reportasked 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 nothing to reportasked 2026-10-22commons 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 4 datasets via GBIF.org; each carries its own licence.