Potentilla daucifolia (carrotleaf horkelia)

Plate 1 figs. a–h · 3 observations

This species has been photographed under an open licence only 3 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.

Potentilla daucifolia, photographed by Ken-ichi Ueda — fig. a Ken-ichi Ueda, CC BY 4.0 / 2020-07-28 / obs. 87452277

Potentilla daucifolia, photographed by Trevor Van Loon — fig. b Trevor Van Loon, CC BY 4.0 / obs. 130396184

Potentilla daucifolia, photographed by Steve Matson — fig. f Steve Matson, CC BY 4.0 / obs. 127879617

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.

The specimen a real sheet, in a real collection

Herbarium: Smithsonian, US National Herbarium
Accession: US 669265
Filed as: Potentilla daucifolia var. daucifolia
Det. by: Strong, Mark T., (BOT), Smithsonian Institution - National Museum of Natural History (UNITED STATES)
Collected: G. D. Butler 1910-05-04
Origin: US
The sheet: View the digitised specimen (CC0 1.0)

A real pressed plant, in a real collection, under the accession number above. Not an illustration of one. The holding institution does not serve this sheet’s image to third parties, so there is no photograph here. The record is real and the link goes to it. Where we hold no openly licensed sheet for a species this section is simply absent, and where a sheet never recorded who determined it, that field stays empty rather than being filled in. Roughly half of all herbarium sheets never recorded a determiner, which is ordinary.

Native range 2 botanical countries

Native distribution of Potentilla daucifolia, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.

Region	TDWG code	Continent
California	CAL	NORTHERN AMERICA
Oregon	ORE

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.

Also published as 9 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.

Horkelia caruifolia Rydb. ex Howell
Horkelia daucifolia (Greene) Rydb.
Horkelia daucifolia subsp. latior D.D.Keck
Horkelia daucifolia subsp. typica D.D.Keck
Horkelia daucifolia var. caruifolia (Rydb. ex Howell) Ertter & Reveal
Horkelia daucifolia var. indicta (Jeps.) Ertter & Reveal
Potentilla caruifolia (Rydb.) Crum
Potentilla caruifolia var. divergens Crum
Potentilla daucifolia var. latior (D.D.Keck) J.T.Howell

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.
USDA PLANTS Database. common name, checklist symbol HODA. public domain. 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.