87 photographs › At a glance
- Jan, under 5 mm of rain
- Feb, under 5 mm of rain
- Mar, under 5 mm of rain
- Apr
- May
- Jun, shaded
- Jul, shaded
- Aug, shaded
- Sep
- Oct
- Nov
- Dec
Summary
Ziziphus rugosa is a species of flowering plant in the family Rhamnaceae. It is a scrambling shrub or tree native to the Indian subcontinent, Indochina, and southern China.
Quoted from Wikipedia, "Ziziphus rugosa", CC BY-SA 4.0.
About the genus · Ziziphus
Ziziphus is a genus of spiny shrubs and small trees in the buckthorn family, Rhamnaceae. It includes 68 species native to tropical and subtropical parts of Africa, Eurasia, Australia and South America. The leaves are alternate, entire, with three prominent basal veins, and often aromatic. More on Wikipedia ›
Quoted from Wikipedia, "Ziziphus", CC BY-SA 4.0.
Cultivation
Seasons
The rain rule reads a rainy season with no name: 70% of the median year's rain (2,315 mm of 2,997 mm) falls in June to August, whose mean temperature, 24.1 °C, is within half a degree of the year's, 24.4 °C, so it is neither the cooler nor the warmer part of the year. Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: December to February.
Rain
2,997 mm in the median year at the habitat, 2,315 mm of it June to August. Wettest month July at 1,027 mm, driest month February at 1 mm; 3 months under 5 mm. Across the grid cells of the range the year's total runs 1,537 mm to 4,575 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 3,186 mm, is the year's rain at the top of the page; the 2,997 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: 21 to 45 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 46).
Warmth and air
Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 13.4 °C, the absolute minimum 9.4 °C, no frost in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 43.5 °C. Monthly means: the coldest month's mean nightly low 16.5 °C in January (across the grid cells of the range 12.9 °C to 20.1 °C), the warmest month's mean daily high 33.6 °C in April (median year across the grid cells of the range, CHELSA). Cold floor: 13.4 °C, which is the 1st-percentile night over 44 years at a typical spot in the range (NASA POWER).
Relative humidity at the habitat: 50 to 76% 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 -50 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 26 °C in Jul and Aug to 34 °C in Apr; mean nightly low from 17 °C in Jan, Feb and Dec to 23 °C in May. The cold quarter, Dec to Feb, is the three months around the coldest month's mean nightly low, centred on the 3 months in a row that tie for it. 2,997 mm of rain in the median year (the twelve monthly medians added), the wettest month Jul. The bands show the 10th to 90th percentile across 126 habitat cells. Over 44 years at a typical spot in the range (NASA POWER) the absolute minimum was 9.4 °C and the 99th-percentile day 43.5 °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 | 29 / 26–32 | 30 / 28–33 | 33 / 30–35 | 34 / 30–36 | 32 / 29–35 | 28 / 25–31 | 26 / 24–28 | 26 / 23–28 | 27 / 25–29 | 29 / 26–31 | 29 / 26–32 | 28 / 25–32 |
| Night °C | 17 / 13–20 | 17 / 14–20 | 19 / 17–22 | 22 / 19–24 | 23 / 20–26 | 22 / 20–25 | 22 / 19–24 | 21 / 19–24 | 21 / 19–24 | 21 / 18–23 | 19 / 15–22 | 17 / 13–21 |
| Rain mm | 2 / 1–13 | 1 / 0–12 | 4 / 1–37 | 14 / 3–100 | 80 / 26–191 | 589 / 153–1059 | 1027 / 316–1648 | 699 / 333–1096 | 368 / 193–501 | 169 / 104–284 | 37 / 22–151 | 7 / 5–40 |
| DLI | 35 / 33–37 | 40 / 38–41 | 43 / 41–44 | 45 / 40–46 | 41 / 36–44 | 26 / 23–32 | 21 / 18–26 | 22 / 18–27 | 28 / 25–31 | 32 / 30–34 | 33 / 29–33 | 32 / 30–34 |
| RH % | 51 / 47–58 | 50 / 44–57 | 52 / 44–60 | 57 / 48–63 | 62 / 57–67 | 72 / 65–78 | 76 / 69–84 | 75 / 69–84 | 71 / 66–76 | 63 / 56–67 | 54 / 49–66 | 51 / 47–61 |
How this section is made
Natural habitat
How this section is made
Photographs
Photographs: (c) Ravuri Krishna Chaitanya, some rights reserved (CC BY) (6).
Related
Similar habitat climate The 6 nearest by mean daily high, mean nightly low and rain, month by month. How.
Aerides maculosa Fox brush orchid Photo: CC BY, Aadi Kulkarni
Ceropegia oculata Apocynaceae Photo: CC BY, Ramesh Shenai
Ceropegia fantastica Apocynaceae Photo: CC0, author not stated
Begonia crenata Begoniaceae Photo: CC BY, chiragmunje
Erinocarpus nimmonii Nimmo's Erinocarpus Photo: CC BY, Ramesh Shenai
Bridelia retusa Phyllanthaceae Photo: CC BY, Bharat GodambeOther Ziziphus 8 in the reference
Ziziphus jujuba Common jujube Photo: CC BY, Kim, Hyun-tae
Ziziphus lotus Lotus tree Photo: CC BY, Karim Haddad
Ziziphus mauritiana Indian jujube Photo: CC BY-SA, Ong Jyh Seng
Ziziphus mucronata Buffalo thorn Photo: CC BY-SA, Rebecca Ryen-Stols
Ziziphus nummularia Jujube Photo: CC BY, harrier
Ziziphus oenopolia Jackal jujube Photo: CC0, author not stated
Ziziphus rivularis False Buffalo Thorn Photo: CC BY, Wynand Uys
Ziziphus spina-christi Christ's-thorn Photo: CC BY, Theo Busschau Names & registers
Also known as Rhamnus glabrata; Ziziphus buraea; Ziziphus glabra; Ziziphus latifolia; Ziziphus obliqua and 4 more. (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 2026-10-21; 5 records within 1 km of a botanic garden, herbarium or zoo left out (2 at a botanic garden or arboretum, 2 at a herbarium, 1 at a zoo; Wikidata's list)climate answeredasked 2026-10-22climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell 19.50_73.125, lapse-corrected -50 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 30 datasets via GBIF.org; each carries its own licence.