Plate 1 figs. a–d · 2 observations
This species has been photographed under an open licence only 2 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.
Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.
Native range 5 botanical countries
| Region | TDWG code | Continent |
|---|---|---|
| California | CAL | NORTHERN AMERICA |
| Idaho | IDA | |
| Nevada | NEV | |
| Oregon | ORE | |
| Washington | WAS |
Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.
Where it actually grows measured, from 63 observations
| Condition | 5th percentile | Median | 95th percentile |
|---|---|---|---|
| Coldest month, mean daily low | -9.1 °C | -1.8 °C | 2.2 °C |
| Warmest month, mean daily high | 25.5 °C | 31.6 °C | 39.0 °C |
| Annual rainfall | 118 mm | 324 mm | 1,384 mm |
| Rainfall in the driest quarter | 13 mm | 32 mm | 66 mm |
It is found where winters bring hard frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 63 research-grade observations of Pyrrocoma racemosa that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.
This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.
Also published as 36 synonyms
A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.
- Aster pyrrhocoma Kuntze
- Haplopappus paniculatus (Nutt.) A.Gray
- Haplopappus paniculatus var. paniculatus
- Haplopappus paniculatus var. virgatus A.Gray
- Haplopappus racemosus Torr.
- Haplopappus racemosus subsp. brachycephalus H.M.Hall
- Haplopappus racemosus subsp. congestus H.M.Hall
- Haplopappus racemosus subsp. duriusculus H.M.Hall
- Haplopappus racemosus subsp. glomeratus H.M.Hall
- Haplopappus racemosus subsp. halophilus H.M.Hall
- Haplopappus racemosus subsp. pinetorum D.D.Keck
- Haplopappus racemosus subsp. prionophyllus H.M.Hall
- Haplopappus racemosus subsp. racemosus
- Haplopappus racemosus subsp. sessiliflorus H.M.Hall
- Haplopappus racemosus var. brachycephalus (A.Nelson) M.Peck
- Haplopappus racemosus var. duriusculus (Greene) M.Peck
- Haplopappus racemosus var. glomeratus (Nutt.) M.Peck
- Haplopappus racemosus var. glomerellus A.Gray
- Haplopappus racemosus var. halophilus (Greene) M.Peck
- Haplopappus racemosus var. paniculatus (Nutt.) Cronquist
- Haplopappus racemosus var. pinetorum (D.D.Keck) J.T.Howell
- Haplopappus racemosus var. prionophyllus (Greene) S.L.Welsh
- Haplopappus racemosus var. racemosus
- Haplopappus racemosus var. sessiliflorus (Greene) S.L.Welsh
and 12 more.
Sourcesevery claim on this page
- World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
- iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
- Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
- Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.
We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.