Asimina incana (W.Bartram) Exell
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
- Feb, shaded
- Mar, shaded
- Apr
- May
- Jun, shaded
- Jul, shaded
- Aug, shaded
- Sep, shaded
- Oct, shaded
- Nov
- Dec
Summary
Asimina incana, also known as the woolly pawpaw, is a species of pawpaw (genus Asimina, family Annonaceae). Its botanical synonyms include Asimina speciosa and Pityothamnus incanus
Quoted from Wikipedia, "Asimina incana", CC BY-SA 4.0.
About the genus · Asimina
Asimina is a genus of small trees or shrubs described as a genus in 1763. Asimina is the only temperate genus in the tropical and subtropical flowering plant family Annonaceae. Asimina have large, simple leaves and large fruit. More on Wikipedia ›
Quoted from Wikipedia, "Asimina", CC BY-SA 4.0.
Cultivation
Seasons
The rain rule reads a summer growing season: 70% of the median year's rain (995 mm of 1,350 mm) falls in February to March and June to October, warmer than the year (wet-season mean 22.5 °C against a yearly mean of 20.3 °C). Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: December to April and August to September.
Rain
1,350 mm in the median year at the habitat, 995 mm of it February to March and June to October. Wettest month August at 188 mm, driest month November at 59 mm. Across the grid cells of the range the year's total runs 1,296 mm to 1,446 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,346 mm, is the year's rain at the top of the page; the 1,350 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: 18 to 41 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 17, the highest 90th-percentile month 42).
Warmth and air
Coldest: the 1st-percentile night over 44 years at a typical spot in the range is -2.7 °C, the absolute minimum -11.0 °C, 486 frost nights in 44 years, 11.0 a year (NASA POWER daily minima). Warmest: the 99th-percentile day is 38.0 °C. Monthly means: the coldest month's mean nightly low 8.4 °C in January (across the grid cells of the range 6.8 °C to 10.4 °C), the warmest month's mean daily high 32.0 °C in July (median year across the grid cells of the range, CHELSA). Cold floor: -2.7 °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 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. NASA POWER daily minima and maxima over 44 years at a typical spot in the range, lapse-corrected -14 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 18 °C in Jan to 32 °C in Jul and Aug; mean nightly low from 8 °C in Jan to 23 °C in Jul and Aug. The cold quarter, Dec to Feb, is the three months around the coldest month's mean nightly low. 1,350 mm of rain in the median year (the twelve monthly medians added), the wettest month Aug. The bands show the 10th to 90th percentile across 241 habitat cells. Over 44 years at a typical spot in the range (NASA POWER) the absolute minimum was -11.0 °C and the 99th-percentile day 38.0 °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 | 18 / 17–20 | 20 / 19–21 | 23 / 22–24 | 26 / 25–27 | 30 / 29–30 | 31 / 31–32 | 32 / 31–33 | 32 / 31–32 | 30 / 29–30 | 27 / 26–27 | 23 / 22–24 | 20 / 18–21 |
| Night °C | 8 / 7–10 | 10 / 8–12 | 12 / 11–14 | 15 / 14–16 | 19 / 18–20 | 22 / 22–23 | 23 / 23–24 | 23 / 23–24 | 22 / 21–23 | 18 / 17–20 | 14 / 12–16 | 10 / 8–12 |
| Rain mm | 84 / 72–110 | 88 / 77–103 | 115 / 106–126 | 71 / 64–77 | 72 / 61–87 | 182 / 162–193 | 181 / 160–195 | 188 / 171–203 | 154 / 121–196 | 87 / 77–110 | 59 / 53–65 | 69 / 63–78 |
| DLI | 20 / 19–21 | 25 / 24–26 | 32 / 31–32 | 39 / 38–39 | 41 / 40–42 | 38 / 37–39 | 38 / 37–39 | 34 / 34–35 | 30 / 29–31 | 26 / 25–27 | 22 / 21–22 | 18 / 17–19 |
| RH % | 58 / 57–58 | 58 / 57–59 | 57 / 57–58 | 57 / 55–57 | 58 / 57–59 | 62 / 61–63 | 63 / 62–64 | 64 / 63–65 | 63 / 62–64 | 60 / 59–61 | 59 / 58–59 | 59 / 58–59 |
How this section is made
Natural habitat
This species has no GBIF key of its own. Its records are GBIF's under the keys of the names Kew's World Checklist holds as this plant: 3158024 (Asimina incana (W.Bartram) Exell, 1232 records), 3158025 (Pityothamnus incanus (W.Bartram) Small, 1 record), 5407517 (Annona incana W.Bartram, 0 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.
Rudbeckia mollis Soft-hair coneflower Photo: CC BY, Scott Allen Davis
Dicerandra densiflora Florida balm Photo: CC BY, Pam Kleinsasser Paepalanthus minor Eriocaulaceae 
Liatris tenuifolia Shortleaf blazing star Photo: CC BY, carter
Asclepias humistrata Sandhill milkweed Photo: CC0, author not stated
Dalea pinnata Summer farewell Photo: CC0, author not statedOther Asimina 5 in the reference
Asimina obovata Flag pawpaw Photo: CC0, author not stated
Asimina parviflora Small-flower pawpaw Photo: CC BY, David Wilkins
Asimina tetramera Four-petal pawpaw Photo: CC BY, Athena Philips
Asimina triloba Pawpaw Photo: CC0, author not stated Names & registers
Also known as Orchidocarpum grandiflorum; Pityothamnus incanus; Porcelia grandiflora; Annona grandiflora; Annona incana and 3 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 Asimina incana (W.Bartram) Exell (plant_name_id 2655416), 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 answeredasked 2026-10-22this 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; 1232 records of GBIF's key 3158024, Asimina incana (W.Bartram) Exell (Kew's file holds it as Asimina incana (W.Bartram) Exell (accepted)): the GBIF download; 1 record of GBIF's key 3158025, Pityothamnus incanus (W.Bartram) Small (Kew's file holds it as Pityothamnus incanus (W.Bartram) Small (synonym under Asimina incana (W.Bartram) Exell)): the GBIF download; 0 records of GBIF's key 5407517, Annona incana W.Bartram (Kew's file holds it as Annona incana W.Bartram (synonym under Asimina incana (W.Bartram) Exell)): GBIF occurrence search API; 2 records within 1 km of a botanic garden, herbarium or zoo left out (2 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 30.50_-81.875, lapse-corrected -14 m at 6.5 °C/kmwikidata answeredasked 2026-10-22found by Kew's IPNI identifier 21375-2, POWO 21375-2wikipedia answeredasked 2026-10-22inat.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 28 datasets via GBIF.org; each carries its own licence.