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Rudbeckia alpicola; photograph author not stated, no rights reserved CC0author not stated, no rights reserved · observed growing wild · 2025-08-30

Rudbeckia alpicola Piper

Showy coneflower; Washington coneflower; Wenatchee Mountain coneflower; Washington showy coneflower

Asteraceae · Oregon, Washington

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Rudbeckia alpicola, photograph (c) amy pavelchek, some rights reserved (CC BY)Rudbeckia alpicola, photograph (c) amy pavelchek, some rights reserved (CC BY)Rudbeckia alpicola, photograph (c) amy pavelchek, some rights reserved (CC BY)Rudbeckia alpicola, photograph (c) amy pavelchek, some rights reserved (CC BY)Rudbeckia alpicola, photograph author not stated, no rights reservedRudbeckia alpicola, photograph author not stated, no rights reserved 39 photographs ›
Habitat figures
Cold floor (1 night in 100)
-18.1°C
Record low -31.3 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
25°C
Jul and Aug at the habitat CHELSA
Rain a year (median across the range)
736mm
10 months of 25 mm or more in the median year CHELSA
Open-sky light
7–47DLI
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
Wet winters: the rain comes October to March, with nights below freezing; no growing season read. rain rule, CHELSA
Northern hemisphere unless you set your site. The chart is in the habitat's months.

Summary

Rudbeckia alpicola, the showy coneflower, Washington coneflower, or Wenatchee mountain coneflower. It is a perennial flowering plant native to Washington state in the United States.

Quoted from Wikipedia, "Rudbeckia alpicola", CC BY-SA 4.0.

About the genus · Rudbeckia

Rudbeckia is a plant genus in the Asteraceae or composite family. Rudbeckia flowers feature a prominent, raised central disc in black, brown shades of green, and in-between tones, giving rise to their familiar common names of coneflowers and black-eyed-susans. All are native to North America, and many species are cultivated in gardens for their showy yellow or gold flower heads that bloom in mid to late summer.

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

Cultivation

Seasons

The rain rule reads a rainy season and no growing season: 70% of the median year's rain (561 mm of 741 mm) falls in October to March, the cooler part of the year, but the mean nightly low is below freezing in February, March, April, December and January, so the rule reads no growing season from it. Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: April to September.

Rain

741 mm in the median year at the habitat, 561 mm of it October to March. Wettest month December at 124 mm, driest month August at 13 mm. Across the grid cells of the range the year's total runs 441 mm to 1,496 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 736 mm, is the year's rain at the top of the page; the 741 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: 7 to 47 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 6, the highest 90th-percentile month 48).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is -18.1 °C, the absolute minimum -31.3 °C, 8,280 frost nights in 44 years, 188.2 a year (NASA POWER daily minima). Warmest: the 99th-percentile day is 30.8 °C. Monthly means: the coldest month's mean nightly low -7.8 °C in December (across the grid cells of the range -10.0 °C to -5.3 °C), the warmest month's mean daily high 24.5 °C in July and August (median year across the grid cells of the range, CHELSA). Cold floor: -18.1 °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: 51 to 67% 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 +92 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 Rudbeckia alpicola through the yearWarmest months July and August, mean daily high 25 °C; coldest month December, mean nightly low -7.8 °C; 741 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.-40°-20°0°20°40°frost30.8° 99th-percentile day, NASA POWER-31.3° lowest night in 44 years, NASA POWER°C · day and nightcold quarter050100150200250300mm rainDLI 7–47RH 51–67%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 33 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-1 / -3–22 / -1–55 / 2–89 / 6–1215 / 11–1820 / 16–2225 / 21–2825 / 21–2820 / 16–2312 / 8–153 / 0–6-2 / -4–1
Night °C-7 / -9–-4-6 / -9–-3-4 / -7–0-1 / -5–23 / -1–67 / 3–910 / 7–1210 / 7–137 / 3–92 / -2–5-4 / -7–-1-8 / -10–-5
Rain mm115 / 63–23880 / 47–17560 / 33–12641 / 24–7844 / 30–6836 / 25–5718 / 12–3013 / 8–2728 / 17–4963 / 33–137119 / 66–264124 / 76–264
DLI9 / 7–1016 / 14–1725 / 23–2735 / 33–3641 / 39–4245 / 42–4647 / 46–4841 / 39–4230 / 28–3218 / 16–2010 / 8–117 / 6–8
RH %66 / 64–6763 / 62–6460 / 59–6357 / 55–6055 / 53–5854 / 52–5752 / 48–5451 / 47–5453 / 50–5558 / 56–6065 / 63–6767 / 64–68
How this section is made
Each figure is the median across the 33 grid cells holding the 63 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 847:1190 (47.625, -120.475). Over 44 years there: absolute minimum -31.3 °C, 1st-percentile night -18.1 °C, 99th-percentile day 30.8 °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 33 distinct grid cells holding 63 of the 63 in-range records; extremes and elevation at the typical cell 847:1190 (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 47.50_-120.625, lapse-corrected +92 m at 6.5 °C/km. Elevation: ETOPO 2022, 1089 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.
NativeOregon, Washington · 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 marker47.456, -120.589 · in the densest population, 78 records (97% of those in range)
Kew's description“perennial” · “temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 80 georeferenced records inside the native range; the climate across the range on the 63 of them placed to within 10 km; the map shows only the 20 openly licensed ones, which alone would put the marker 1 km away. 2 records outside the WCVP native range not used. 17 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.
How this section is made
The map marker: the openly licensed record nearest the middle of the densest 1° population of the 80 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Rudbeckia alpicola, photograph 1did not loadRudbeckia alpicola, photograph 2did not loadRudbeckia alpicola, photograph 3did not loadRudbeckia alpicola, photograph 4did not loadRudbeckia alpicola, photograph 5did not loadRudbeckia alpicola, photograph 6did not load

Photographs: (c) amy pavelchek, some rights reserved (CC BY) (4); author not stated, no rights reserved · CC0 (2).

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

Lewisiopsis tweedyi Lewisiopsis tweedyi Tweedy's bitterroot Photo: CC BY, amy pavelchekAndrosace nivalis Androsace nivalis Snow dwarf primrose Photo: CC BY, James H. ThomasCeanothus velutinus Ceanothus velutinus Big buck-brush Photo: CC BY, machaut2Silene douglasii Silene douglasii Douglas' campion Photo: CC0, author not statedHieracium scouleri Hieracium scouleri Scouler's hawkweed Photo: CC BY, cigazzeLarix occidentalis Larix occidentalis Western larch Photo: CC0, author not stated

Other Rudbeckia 23 in the reference

Rudbeckia alismifolia Asteraceae Rudbeckia amplexicaulis Rudbeckia amplexicaulis Clasping-leaved Coneflower Photo: CC BY, Nathan AaronRudbeckia auriculata Rudbeckia auriculata Eared coneflower Photo: CC0, author not statedRudbeckia californica Rudbeckia californica California coneflower Photo: CC BY, Connor McInerneyRudbeckia deamii Rudbeckia deamii Asteraceae Photo: CC BY-SA, Krzysztof Ziarnek, KenraizRudbeckia fulgida Rudbeckia fulgida Perennial coneflower Photo: CC0, author not statedRudbeckia glaucescens Rudbeckia glaucescens Waxy cone-flower Photo: CC BY, Ian McFaulRudbeckia grandiflora Rudbeckia grandiflora Rough coneflower Photo: CC BY, Eric KnightRudbeckia heliopsidis Rudbeckia heliopsidis Sun-facing coneflower Photo: CC BY, harrierRudbeckia hirta Rudbeckia hirta Black-eyed-Susan Photo: CC BY, Alison NorthupRudbeckia laciniata Rudbeckia laciniata Coneflower Photo: CC BY, Will KuhnRudbeckia maxima Rudbeckia maxima Great coneflower Photo: CC BY, Sam Kieschnick all 24 ›

Names & registers

Also known as Rudbeckia occidentalis var. alpicola. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Asteraceae
Described by
Piper
Native to
Oregon, Washington
Wild records
80 in range · 20 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 answeredas of 2026-10-21GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21
Habitat climate climate answeredasked 2026-10-22
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell 47.50_-120.625, lapse-corrected +92 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 2026-10-22none of the photographs on this page is credited to GBIF: those shown are other sources', and GBIF's were the same photographs or were set aside by the photograph rules
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 9 datasets via GBIF.org; each carries its own licence.

Cultifolio

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