Example ⟳ +
An example collection, so you can see what this page does. Nothing added here is kept: leaving deletes it.
Rubus pubescens; photograph (c) Caleb Catto, some rights reserved (CC BY) CC BY(c) Caleb Catto, some rights reserved (CC BY) · observed growing wild · 2026-09-19

Rubus pubescens Raf.

Dwarf raspberry; Dwarf red blackberry; Creeping red raspberry; Dewberry

Rosaceae · Alaska, Northwest Territories +38

Add one to my plants
Sow seed
Rubus pubescens, photograph (c) Shanze Yoell, some rights reserved (CC BY)Rubus pubescens, photograph (c) Shanze Yoell, some rights reserved (CC BY)Rubus pubescens, photograph (c) Mary Krieger, some rights reserved (CC BY)Rubus pubescens, photograph (c) Patrick Jackson, some rights reserved (CC BY)Rubus pubescens, photograph (c) Patrick Jackson, some rights reserved (CC BY)Rubus pubescens, photograph (c) Steven Lamonde, some rights reserved (CC BY) 64 photographs ›
Habitat figures
Cold floor (1 night in 100)
-32.0°C
Record low -44.9 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
24°C
Jul at the habitat CHELSA
Rain a year (median across the range)
947mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
8–39DLI
Lowest to highest month (DLI) CHELSA
The year in your months, northern hemisphere
  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec
Rain spread: 70% of the median year's rain takes 8 months, so no short rainy season. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

Summary

Rubus pubescens (dwarf red blackberry, dwarf red raspberry, dewberry) is a herbaceous perennial plant widespread across much of Canada and the northern United States.

Quoted from Wikipedia, "Rubus pubescens", CC BY-SA 4.0.

About the genus · Rubus

Rubus is a large and diverse genus of flowering plants in the rose family, Rosaceae, subfamily Rosoideae, most commonly known as brambles. Fruits of various species are known as raspberries, blackberries, dewberries, cloudberries, and bristleberries. It is a diverse genus, and estimates of the number of Rubus species vary from 250 to over 1,000, found across all continents except Antarctica.

Quoted from Wikipedia, "Rubus", CC BY-SA 4.0.

Cultivation

Seasons

The rain rule reads no short rainy season: 70% of the median year's rain (725 mm of 980 mm) takes 8 months, April to November. Mean temperature moves 28.7 °C between the warmest and coldest month. Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: October to May.

Rain

980 mm in the median year at the habitat, 725 mm of it April to November. Wettest month June at 101 mm, driest month February at 57 mm. Across the grid cells of the range the year's total runs 561 mm to 1,393 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 947 mm, is the year's rain at the top of the page; the 980 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: 8 to 39 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 5, the highest 90th-percentile month 42).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is -32.0 °C, the absolute minimum -44.9 °C, 8,688 frost nights in 44 years, 197.5 a year (NASA POWER daily minima). Warmest: the 99th-percentile day is 29.7 °C. Monthly means: the coldest month's mean nightly low -13.8 °C in January (across the grid cells of the range -18.4 °C to -8.7 °C), the warmest month's mean daily high 23.7 °C in July (median year across the grid cells of the range, CHELSA). Cold floor: -32.0 °C, which is the 1st-percentile night over 44 years at a typical spot in the range (NASA POWER).

Humidity

Relative humidity at the habitat: 56 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 +42 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

Habitat climate of Rubus pubescens through the yearWarmest month July, mean daily high 24 °C; coldest month January, mean nightly low -13.8 °C; 980 mm of rain in the median year (the twelve monthly medians added). Medians across the range, from CHELSA; the extremes at the edge from NASA POWER. Habitat months, northern hemisphere.-60°-40°-20°0°20°40°frost29.7° 99th-percentile day, NASA POWER-44.9° lowest night in 44 years, NASA POWER°C · day and nightcold quarter0255075100125150mm rainDLI 8–39RH 56–64%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 1277 habitat cells, CHELSA cold quarter: the three months around the coldest month's mean nightly low extremes over 44 years at a typical spot in the range, from NASA POWER, marked at the edge, in no month DLI, mol/m²/dayRH %each on its own scale
Figures by month
JanFebMarAprMayJunJulAugSepOctNovDec
Day °C-5 / -10–-1-3 / -7–12 / -1–610 / 5–1317 / 11–1921 / 17–2424 / 21–2623 / 21–2519 / 16–2112 / 9–145 / -1–7-2 / -8–2
Night °C-14 / -18–-9-12 / -16–-8-7 / -10–-40 / -3–36 / 3–912 / 8–1515 / 12–1815 / 11–1711 / 7–145 / 0–7-2 / -8–2-10 / -15–-5
Rain mm66 / 22–10757 / 17–9559 / 26–10673 / 31–10988 / 59–116101 / 78–12999 / 77–12892 / 68–12798 / 54–12491 / 38–13283 / 28–12773 / 23–122
DLI10 / 7–1217 / 14–1825 / 23–2632 / 30–3437 / 34–3939 / 37–4238 / 35–4133 / 31–3524 / 22–2716 / 13–1810 / 8–128 / 5–9
RH %64 / 61–6862 / 59–6559 / 57–6256 / 54–5956 / 54–6058 / 56–6159 / 57–6260 / 57–6260 / 57–6360 / 58–6362 / 60–6564 / 61–69
How this section is made
Each figure is the median across the 1277 grid cells holding the 1516 in-range records, with the 10th–90th percentile span across those cells after the slash where it differs. A dash is a month one or more of those cells has no figure for in the grid (a variable CHELSA does not carry there), so no median is taken rather than one over fewer cells. Extremes and elevation were read at a typical spot in the range, cell 734:1311 (53.275, -114.425). Over 44 years there: absolute minimum -44.9 °C, 1st-percentile night -32.0 °C, 99th-percentile day 29.7 °C. Normals: CHELSA V2.1 1981–2010 climatology, 0.05° cells (each the mean of ~36 1 km pixels). Across the range: median and 10th–90th percentile of each month across the 1277 distinct grid cells holding 1516 of the 1516 in-range records; extremes and elevation at the typical cell 734:1311 (its coldest month's mean nightly low nearest the median across cells); its position is the cell centre. Extremes: NASA POWER (MERRA-2) daily 1981–2024, cell 53.50_-114.375, lapse-corrected +42 m at 6.5 °C/km. Elevation: ETOPO 2022, 795 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 the cells of the in-range records placed well enough to read one, not at the marker.
Openly licensed records inside the range, framed on where they fall.
NativeAlaska, Northwest Territories, Yukon, Alberta, British Columbia, Manitoba, Saskatchewan, Labrador, New Brunswick, Newfoundland, Nova Scotia, Ontario, Prince Edward I., Québec, Colorado, Idaho, Montana, Washington, Wyoming, Illinois, Iowa, Minnesota, North Dakota, Nebraska, South Dakota, Wisconsin, Connecticut, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode I., Vermont, West Virginia, Maryland · regions are the level-3 units of the World Geographical Scheme for Recording Plant Distributions, as Kew's World Checklist records ranges, some under historical names such as Yugoslavia or Czechoslovakia (how).
Map marker44.488, -72.532 · in the densest population, 672 records (35% of those in range)
Kew's description“subshrub” · “temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 1924 georeferenced records inside the native range; the climate across the range on the 1516 of them placed to within 10 km; the map shows only the 748 openly licensed ones, which alone would put the marker 40 km away. 3 records outside the WCVP native range not used. 408 in-range records are placed to worse than 10 km, or with no stated accuracy (admitted only as a person's observation to three decimals), and stay on the map but off the climate.
Other GBIF keysRecords also from GBIF's key 8288337 (Rubus saxatilis Michx.): Kew's file holds it as Rubus saxatilis Michx. (illegitimate under Rubus pubescens Raf.); 0 records, from GBIF's search API on the day of the build.
How this section is made
The map marker: the openly licensed record nearest the middle of the densest 1° population inside the densest 4° block of the 1924 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Rubus pubescens, photograph 1did not loadRubus pubescens, photograph 2did not loadRubus pubescens, photograph 3did not loadRubus pubescens, photograph 4did not loadRubus pubescens, photograph 5did not loadRubus pubescens, photograph 6did not load

Photographs: (c) Shanze Yoell, some rights reserved (CC BY) (2); (c) Mary Krieger, some rights reserved (CC BY); (c) Patrick Jackson, some rights reserved (CC BY) (2); (c) Steven Lamonde, some rights reserved (CC BY).

Similar habitat climate The 6 nearest by mean daily high, mean nightly low and rain, month by month. How.

Lycopodium dendroideum Lycopodium dendroideum Lycopodiaceae Photo: CC BY-SA, JomegatParogonum ciliinode Parogonum ciliinode Black-fringed knotweed Photo: CC BY, Abby CionaHypericum fraseri Hypericum fraseri Hypericaceae Photo: CC BY-SA, Michael WolfAcer spicatum Acer spicatum Moose maple Photo: CC BY, Andrew SebastianLarix laricina Larix laricina American larch Photo: CC BY, Charlie PavlisichNuphar × rubrodisca Nuphar × rubrodisca Red-disk yellow pond-lily Photo: CC BY, Quinten Wiegersma

Other Rubus 103 in the reference

Rubus acuminatus Rubus acuminatus Rosaceae Photo: CC BY, Anastasia TitovetsRubus adenotrichos Rubus adenotrichos Tropical Highland Blackberry Photo: CC BY, Neptalí Ramírez MarcialRubus affinis Rubus affinis Rosaceae Photo: CC BY, Dave RichardsonRubus alceifolius Rubus alceifolius Giant bramble Photo: CC BY, 黃美滿Rubus allegheniensis Rubus allegheniensis Allegheny blackberry Photo: CC BY, The Wrong IndustryRubus arcticus Rubus arcticus Arctic bramble Photo: CC BY, Matt BergerRubus argutus Rubus argutus Sawtooth blackberry Photo: CC BY, cello caruso-turielloRubus armeniacus Rubus armeniacus Himalayan blackberry Photo: CC0, author not statedRubus australis Rubus australis Rosaceae Photo: CC0, author not stated Rubus bambusarum Rosaceae Rubus × barkeri Rosaceae Rubus biflorus Rubus biflorus Rosaceae Photo: CC BY, Siddarth Machado all 104 ›

Names & registers

Also known as Cylactis aegopodioides; Cylactis egopodioides; Cylactis lyncemontana; Cylactis montana; Cylactis pubescens and 32 more. (GBIF Backbone)

Under another author Rubus canadensis Torr. is an older name of this species, not Rubus canadensis, a species of the reference. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Rosaceae
Described by
Raf.
Native to
Alaska, Northwest Territories, Yukon +37
Wild records
1924 in range · 748 open

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 record gbif.species answeredasked 2026-10-22
GBIF synonyms gbif.synonyms answeredasked 2026-10-22
GBIF common names gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22
WCVP native range wcvp.distribution answeredas of 2026-06-04
GBIF occurrence records gbif.occurrences answeredasked 2026-10-22GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21; 0 records of GBIF's key 8288337, Rubus saxatilis Michx. (Kew's file holds it as Rubus saxatilis Michx. (illegitimate under Rubus pubescens Raf.)): GBIF occurrence search API; 17 records within 1 km of a botanic garden, herbarium or zoo left out (12 at a botanic garden or arboretum, 5 at a zoo; Wikidata's list)
Habitat climate climate answeredasked 2026-10-22
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell 53.50_-114.375, lapse-corrected +42 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist photographs, wild inat.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 2026-10-22
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media answeredasked 2026-10-22
OpenAlex papers openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshot

Every 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 62 datasets via GBIF.org; each carries its own licence.

Cultifolio

Opening your plants…