Crassula muricata Thunb.

Crassulaceae

Climate known 12 photographs Cactus or succulent

Every figure on this page is derived from public data by a stated rule and says its source; nothing here is written by a person or a model, except the Wikipedia passage, which is quoted and marked as such. How it is made.

About the genus · Crassula

Crassula is a genus of succulent plants containing about 200 accepted species, including the popular jade plant. They are members of the stonecrop family (Crassulaceae) and are native to many parts of the globe, but cultivated varieties originate almost exclusively from species from the Eastern Cape of South Africa.

Text from Wikipedia, “Crassula”, CC BY-SA 4.0, quoted as written.

Family

Crassulaceae

Described by

Thunb.

Native to

Cape Provinces

Wild records

56 in range· 13 open

At a glance

Warmest month

29°C

Jan, mean day; nights 15 °C (CHELSA)

Rain

424mm/yr

8 wet months · peak Jul 62 mm (CHELSA)

Light

17–52DLI

mol/m²/day, winter to summer, open sky (CHELSA shortwave)

In short condensed by rule from the cultivation cards · not written by a person

Grouped as a cactus or succulent by the genus Crassula, which is reliably one kind of plant (archetype table). Rain rule: a winter growing season, October to April in the northern hemisphere (April to October at the habitat, southern). Habitat rain 424 mm a year, wettest July at 62 mm, driest February at 17 mm (habitat calendar, southern hemisphere). Open sky over the habitat: 17 to 52 mol/m²/day. Cold floor 1.8 °C (1st-percentile habitat night, NASA POWER).

Each sentence is one card's own one-line form, written by the same rule as the card (Its year, Rain, Light, Temperature); the note cannot say what a card does not. Months are given for the northern hemisphere (set your site in Settings to change this), and the habitat's own alongside. The cards · the figures.

Also known as Crassula divaricata Eckl. & Zeyh.

Cultivation

Grouped as a cactus or succulent by the genus Crassula, which is reliably one kind of plant (archetype table). The table holds no figure for this group, which spans too much for one minimum; the cold floor is the habitat's alone, and no prose comes from the table.

Its year Rain rule: a winter growing season, October to April in the northern hemisphere (April to October at the habitat, southern).

This species’ habitat figures, and what two fixed rules read from them.

The rain rule reads a winter growing season: 70% of the year's rain (313 mm of 424 mm) falls in April to October, cooler than the year (wet-season mean 13.8 °C against a yearly mean of 16.7 °C). Months are the habitat's, southern hemisphere; shifted six months for a northern-hemisphere collection: October to April.

Read from the median year of CHELSA monthly rainfall and mean temperature across the envelope cells: 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 gives a season to reverse. A reading of the curves, not an observation of the plant.

Rain Habitat rain 424 mm a year, wettest July at 62 mm, driest February at 17 mm (habitat calendar, southern hemisphere).

This species’ habitat figures, with their source.

424 mm a year at the habitat, 313 mm of it April to October. Wettest month July at 62 mm, driest February at 17 mm. Across the envelope cells the year's total runs 333 mm to 588 mm (10th to 90th percentile of each cell's own year) (median year across the envelope cells, CHELSA; habitat calendar, southern hemisphere).

CHELSA monthly precipitation, median year across the envelope cells. The rain that falls where the species is recorded; nothing about how the plant takes water.

Light Open sky over the habitat: 17 to 52 mol/m²/day.

This species’ habitat figures, with their source.

Open sky over the habitat: 17 to 52 mol/m²/day across the year (daily light integral, median year across the envelope cells, CHELSA; the lowest 10th-percentile month across the cells is 17, the highest 90th-percentile month 55).

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.

Warmth and air Cold floor 1.8 °C (1st-percentile habitat night, NASA POWER).

This species’ habitat figures, with their source.

Temperature

Coldest: the 1st-percentile night over 44 years at the typical cell is 1.8 °C, the absolute minimum -1.0 °C, 11 frost nights in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 39.6 °C. Monthly means: coldest night 5.8 °C in July (across the envelope cells 2.1 °C to 6.8 °C), warmest day 29.1 °C in January (median year across the envelope cells, CHELSA). Cold floor: 1.8 °C, which is the 1st-percentile night over 44 years at the typical cell (NASA POWER).

NASA POWER daily minima and maxima 1981–2024 at the typical cell, without lapse correction; CHELSA monthly means, median year across the envelope cells, CHELSA. The cold floor is the figure named in its sentence. Not a measured survival limit for any plant in a pot.

Humidity

Relative humidity at the habitat: 54 to 57% across the year (monthly means, median year across the envelope cells, CHELSA). A figure about the air, saying nothing about how the plant takes water.

CHELSA relative humidity, median year across the envelope cells.

The figures the cards read from are in Climate below, and where they came from in Natural habitat.

Climate across the habitat

day night rain 10th–90th percentile across 29 habitat cells cold quarter: the three months around the coldest night extremes over 44 years at the typical cell, marked at the edge: undated DLI, mol/m²/dayRH %each on its own scale

Figures by month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Day °C	29 / 27–30	29 / 27–30	27 / 25–28	24 / 21–25	20 / 17–21	17 / 13–18	16 / 13–17	17 / 14–18	20 / 17–21	22 / 20–24	25 / 23–26	27 / 25–28
Night °C	15 / 12–16	16 / 12–17	15 / 11–16	12 / 8–13	10 / 6–11	7 / 3–8	6 / 2–7	7 / 3–8	8 / 4–9	10 / 7–11	12 / 9–13	14 / 11–15
Rain mm	22 / 14–28	17 / 12–24	24 / 19–33	40 / 34–53	44 / 26–66	55 / 25–83	62 / 27–94	48 / 31–68	34 / 20–51	30 / 21–42	26 / 19–35	22 / 15–29
DLI	52 / 51–55	46 / 45–50	38 / 37–40	28 / 27–29	21 / 20–23	17 / 17–19	19 / 18–21	24 / 23–26	32 / 31–34	41 / 40–44	48 / 47–51	52 / 51–55
RH %	54 / 51–56	55 / 51–57	55 / 50–57	56 / 52–57	56 / 53–58	56 / 54–59	56 / 54–59	57 / 54–60	57 / 53–59	55 / 51–57	54 / 51–56	54 / 52–56

Each figure is the median across the 29 grid cells holding the 53 in-range records, with the 10th–90th percentile span across those cells after the slash where it differs. Extremes and elevation were read at the typical cell 2475:3994 (-33.775, 19.725). Over 44 years there: absolute minimum -1.0 °C, 1st-percentile night 1.8 °C, 99th-percentile day 39.6 °C. Normals: CHELSA V2.1 1981–2010 climatology, 0.05° cells (each the mean of ~36 1 km pixels). Envelope: median and 10th–90th percentile of each month across the 29 distinct grid cells holding the 53 in-range records; extremes and elevation at the typical cell 2475:3994 (its coldest month's mean night nearest the median across cells); its position is the cell centre. Extremes: NASA POWER (MERRA-2) daily 1981–2024, cell -34.00_20.000, no lapse correction (POWER gave no cell elevation). Elevation: ETOPO 2022, 361 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 every in-range record's cell, not at the marker.

Openly licensed records inside the range, framed on where they fall.

NativeCape Provinces

Kew's description“succulent subshrub” · “subtropical”· quoted from WCVP, RBG Kew (CC BY 4.0); not derived here

Map marker-33.647, 19.449 · in the densest population, 54 records (96% of those in range)

Evidence usedThe map marker and the climate envelope rest on all 56 georeferenced records inside the native range; the map shows only the 13 openly licensed ones, which alone would put the marker 92 km away. 3 in-range records are placed to worse than 10 km and stay on the map but off the climate.

The map markerthe map marker: the openly licensed record nearest the middle of the densest 1° population of the 56 in-range records; it decides nothing.

Photographs

Photographs: (c) James Deacon, some rights reserved (CC BY-SA) (2); Royal Botanic Gardens, Kew, CC BY, via GBIF (2); unknown, CC BY, via GBIF; Frida Eggens (S), CC BY, via GBIF; Royal Botanic Garden Edinburgh, CC0, via GBIF; unknown, CC0, via GBIF.

Photographs: iNaturalist did not answer when this page was built; what is shown came from the sources that did.

Papers naming this species

Works whose title or abstract names Crassula muricata, most cited first, from OpenAlex (CC0). A mention, not a cultivation source: nothing on this page is drawn from them.

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