Solanecio mannii (Hook.f.) C.Jeffrey
Cited as Kew's World Checklist cites it, Solanecio mannii (Hook.f.) C.Jeffrey: GBIF's backbone key for this page carries the name with another author, (Hook.fil.) C.Jeffrey.
Photographs not checked
iNaturalist was 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
- Feb
- Mar, shaded
- Apr, shaded
- May, shaded
- Jun
- Jul
- Aug
- Sep, shaded
- Oct, shaded
- Nov, shaded
- Dec, shaded
Summary
Solanecio mannii, also called Gynura mannii, of the daisy family (Asteraceae) is a tree native to seasonally dry tropical areas of Africa from Ethiopia to Mozambique. It grows up to 26 ft (7.9 m) in height. It has very large leaves, up to 30 in (760 mm) in length, and of oblanceolate form. The flowers are yellow daisies in a terminal inflorescence. More on Wikipedia ›
Quoted from Wikipedia, "Solanecio mannii", CC BY-SA 4.0.
Cultivation
Seasons
The rain rule reads a sharp season: 70% of the median year's rain (1,041 mm of 1,388 mm) falls in March to May and September to December. The temperature curve is flat, 2.6 °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 habitat lies within 10° of the equator, where the shift rule does not apply, so they are not shifted for a collection elsewhere.
Rain
1,388 mm in the median year at the habitat, 1,041 mm of it March to May and September to December. Wettest month October at 178 mm, driest month July at 34 mm. Across the grid cells of the range the year's total runs 922 mm to 2,953 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,540 mm, is the year's rain at the top of the page; the 1,388 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: 31 to 36 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 25, the highest 90th-percentile month 41).
Warmth and air
Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 7.4 °C, the absolute minimum 4.4 °C, no frost in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 33.9 °C. Monthly means: the coldest month's mean nightly low 11.7 °C in July (across the grid cells of the range 6.6 °C to 16.4 °C), the warmest month's mean daily high 23.4 °C in February (median year across the grid cells of the range, CHELSA). Cold floor: 7.4 °C, which is the 1st-percentile night over 44 years at a typical spot in the range (NASA POWER).
Relative humidity at the habitat: 57 to 65% 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 +11 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, southern hemisphere
Mean daily high from 21 °C in Jun, Jul and Aug to 23 °C in Jan, Feb, Mar, Oct, Nov and Dec; mean nightly low from 12 °C in Jun, Jul and Aug to 15 °C in Jan and Feb. The cold quarter, Jun to Aug, is the three months around the coldest month's mean nightly low, centred on the 3 months in a row that tie for it. 1,388 mm of rain in the median year (the twelve monthly medians added), the wettest month Oct. The bands show the 10th to 90th percentile across 34 habitat cells. Over 44 years at a typical spot in the range (NASA POWER) the absolute minimum was 4.4 °C and the 99th-percentile day 33.9 °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 | 23 / 18–27 | 23 / 19–28 | 23 / 19–27 | 22 / 18–27 | 22 / 18–26 | 21 / 17–26 | 21 / 17–27 | 21 / 18–27 | 22 / 18–27 | 23 / 18–27 | 23 / 18–27 | 23 / 18–26 |
| Night °C | 15 / 10–18 | 15 / 10–18 | 14 / 11–18 | 13 / 10–18 | 13 / 9–17 | 12 / 7–17 | 12 / 7–16 | 12 / 8–17 | 13 / 9–16 | 13 / 10–17 | 14 / 10–17 | 14 / 9–17 |
| Rain mm | 88 / 40–272 | 97 / 53–246 | 160 / 105–250 | 164 / 64–317 | 135 / 17–286 | 43 / 10–284 | 34 / 10–303 | 85 / 9–330 | 142 / 15–301 | 178 / 49–353 | 157 / 97–268 | 105 / 47–238 |
| DLI | 35 / 32–38 | 36 / 33–37 | 35 / 30–37 | 32 / 27–35 | 31 / 26–34 | 31 / 25–33 | 31 / 25–33 | 33 / 29–35 | 35 / 30–38 | 34 / 27–41 | 33 / 29–41 | 34 / 31–37 |
| RH % | 63 / 56–68 | 62 / 54–69 | 64 / 58–68 | 64 / 62–70 | 63 / 59–69 | 59 / 55–67 | 57 / 53–69 | 57 / 53–70 | 60 / 55–69 | 63 / 59–67 | 64 / 59–67 | 65 / 59–68 |
How this section is made
Natural habitat
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.
Dracaena steudneri Bush nightfighter Photo: CC BY-SA, Tony Rebelo Baccharoides calvoana Asteraceae 
Ensete ventricosum Abyssinian banana Photo: CC BY, Kelvin Perrie
Solanum aculeastrum Goat Bitter-apple Photo: CC0, author not stated
Abutilon mollissimum Malvaceae Photo: CC0, Manuel Roncal Selaginella microphylla Selaginellaceae Other Solanecio 1 in the reference
Names & registers
Also known as Crassocephalum mannii; Crassocephalum multicorymbosum; Senecio acervatus; Senecio bogoroensis; Senecio congolensis and 6 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's key 3090935 is Solanecio mannii (Hook.fil.) C.Jeffrey; the page links Kew's Solanecio mannii (Hook.f.) C.Jeffrey, and the name is cited as Kew cites itgbif.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 (4 at a botanic garden or arboretum, 1 at a zoo; Wikidata's list)climate answeredasked 2026-10-22climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell -13.50_33.750, lapse-corrected +11 m at 6.5 °C/kmwikidata answeredasked 2026-10-22wikipedia answeredasked 2026-10-22inat.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 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 31 datasets via GBIF.org; each carries its own licence.