Hemionitis nivea (Poir.) Christenh.
English names not checked: Wikidata's common names were not read for this page.
Photographs not checked
iNaturalist and GBIF media were skipped (not asked) when this page was built. Not asked, or not answered, is not "none": nothing here claims there is none. Why the site says it this way.At a glance
- Jan, shaded
- Feb, shaded
- Mar, shaded
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov, shaded
- Dec, shaded
Summary
Argyrochosma nivea is an Andean fern species in the family Pteridaceae.
Quoted from Wikipedia, "Argyrochosma nivea", CC BY-SA 4.0; its title is one of this species' older names (GBIF Backbone), which is the proof that the article is this species'.
Cultivation
Seasons
The rain rule reads a sharp season: 70% of the median year's rain (633 mm of 807 mm) falls in November to March. The temperature curve is flat, 3.9 °C between the warmest and coldest month, so the growing-season rule does not infer a growing season from it. Months are the habitat's, southern hemisphere. The temperature curve moves under 4 °C between the warmest and coldest month, where the shift rule does not apply, so they are not shifted for a collection elsewhere.
Rain
807 mm in the median year at the habitat, 633 mm of it November to March. Wettest month January at 164 mm, driest month June at 7 mm. Across the grid cells of the range the year's total runs 385 mm to 1,265 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 858 mm, is the year's rain at the top of the page; the 807 mm here is the median year's, the twelve monthly medians added, which the rain rule reads. Habitat calendar, southern hemisphere; median year across the grid cells of the range, CHELSA.
Light
Open sky over the habitat: 32 to 46 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 18, the highest 90th-percentile month 56).
Warmth and air
Monthly means: the coldest month's mean nightly low 1.4 °C in July (across the grid cells of the range -3.7 °C to 5.5 °C), the warmest month's mean daily high 16.6 °C in November (median year across the grid cells of the range, CHELSA). Cold floor: none read. The nearest figure is 1.4 °C, the coldest month's mean nightly low, July, 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: 53 to 63% 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, southern hemisphere
Mean daily high from 13 °C in Jun and Jul to 17 °C in Oct and Nov; mean nightly low from 1 °C in Jul to 7 °C in Feb. The cold quarter, Jun to Aug, is the three months around the coldest month's mean nightly low. 807 mm of rain in the median year (the twelve monthly medians added), the wettest month Jan. The bands show the 10th to 90th percentile across 110 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 | 15 / 12–26 | 15 / 12–25 | 15 / 12–24 | 15 / 12–21 | 14 / 11–18 | 13 / 10–17 | 13 / 10–17 | 15 / 11–19 | 15 / 12–20 | 17 / 13–23 | 17 / 13–25 | 16 / 13–26 |
| Night °C | 6 / 2–17 | 7 / 2–16 | 6 / 1–15 | 5 / 0–12 | 4 / -2–9 | 2 / -3–7 | 1 / -4–6 | 3 / -3–7 | 4 / -2–9 | 5 / -1–12 | 6 / 0–14 | 6 / 2–16 |
| Rain mm | 164 / 101–250 | 146 / 94–206 | 127 / 62–211 | 49 / 9–101 | 15 / 2–36 | 7 / 2–21 | 9 / 2–22 | 11 / 4–30 | 26 / 4–47 | 57 / 7–92 | 77 / 18–142 | 119 / 47–205 |
| DLI | 43 / 35–49 | 40 / 35–49 | 38 / 30–45 | 36 / 24–43 | 33 / 20–39 | 32 / 18–36 | 33 / 20–38 | 37 / 26–42 | 41 / 32–49 | 44 / 37–55 | 46 / 39–56 | 45 / 37–54 |
| RH % | 63 / 58–68 | 63 / 58–69 | 63 / 57–68 | 61 / 48–66 | 57 / 38–64 | 55 / 34–61 | 54 / 34–60 | 53 / 36–60 | 53 / 38–62 | 56 / 41–63 | 57 / 45–64 | 59 / 53–66 |
The daily extremes were not used: the correction for elevation, +1453 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 -5.9 °C, 1st-percentile night -3.4 °C.
How this section is made
Natural habitat
This species has no GBIF key of its own. Its records are GBIF's under the key of the name Kew's World Checklist holds as this plant: 7335754 (Argyrochosma nivea (Poir.) Windham, 480 records). No name was matched to GBIF; the keys are read from Kew's synonymy. How.
How this section is made
Photographs
Related
Similar habitat climate The 6 nearest by mean daily high, mean nightly low and rain, month by month. How.
Aldama helianthoides Asteraceae Photo: CC BY, Ariadna Tripaldi
Berberis boliviana Berberidaceae Photo: CC BY, Nolan Exe
Senecio rudbeckiifolius Asteraceae Photo: CC BY, Paúl Gonzáles
Austrocylindropuntia shaferi Cactaceae Photo: CC BY, Andrés Romero Bravo
Echeveria whitei Crassulaceae Photo: CC BY, Nolan Exe Neltuma andicola Fabaceae Other Hemionitis 74 in the reference
Hemionitis acrostica Pteridaceae Photo: CC BY-SA, Krzysztof Ziarnek, Kenraiz Hemionitis alabamensis Pteridaceae Hemionitis arifolia Pteridaceae Hemionitis aspera Pteridaceae Hemionitis atropurpurea Pteridaceae Hemionitis bonariensis Pteridaceae Hemionitis bradburyi Pteridaceae Hemionitis breweri Pteridaceae Hemionitis bridgesii Pteridaceae Hemionitis calidirupium Pteridaceae Hemionitis californica Pteridaceae Hemionitis calomelanos Pteridaceae all 75 ›Names & registers
Also known as Cincinalis nivea; Cincinalis tarapacana; Notholaena albidula; Notholaena chrysophylla; Acrostichum albidulum and 8 more. (WCVP, RBG Kew)
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
kew.names answeredas of 2026-06-04Kew's entry Hemionitis nivea (Poir.) Christenh. (plant_name_id 3218573), read from Kew's names filegbif.species not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not askedgbif.synonyms not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not askedgbif.vernacular not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not askedwcvp.distribution answeredas of 2026-06-04gbif.occurrences answeredas of 2026-10-21this species has no GBIF key of its own; its records are read under GBIF's keys for the names Kew's file holds as this plant, never by a name matched; GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21; 480 records of GBIF's key 7335754, Argyrochosma nivea (Poir.) Windham (Kew's file holds it as Argyrochosma nivea (Poir.) Windham (synonym under Hemionitis nivea (Poir.) Christenh.)): the GBIF download; 12 records within 1 km of a botanic garden, herbarium or zoo left out (12 at a botanic garden or arboretum; Wikidata's list)climate answeredasked 2026-10-22climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell -18.00_-70.000, lapse-corrected +1453 m at 6.5 °C/km; read, and set aside: the correction for elevation, +1453 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 2026-10-22found by Kew's IPNI identifier 77182941-1, POWO 77182941-1wikipedia answeredasked 2026-10-22Wikipedia redirects Hemionitis nivea to Argyrochosma nivea, an older name of this species (Argyrochosma nivea)inat.taxon not askedinat.photos.wild not askedinat.photos.cultivated not askedgbif.media not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not askedcommons nothing to reportasked 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 33 datasets via GBIF.org; each carries its own licence.