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Philadelphus

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lewisii

Taxon

Philadelphus lewisii Pursh

Protologue Fl. Amer. Sept. (Pursh) 1: 329. 1813 [Dt. 1814; publ. Dec 1813]BHL pageIPNI
AcceptedGBIF
Predicted not threatened
PXL_20260530_163129137.MP.jpg

PXL_20260530_163129137.MP.jpg

By Sven Buerki

CC-BY-NC-SA-4.0

PXL_20260530_162927781.MP.jpg

PXL_20260530_162927781.MP.jpg

By Sven Buerki

CC-BY-NC-SA-4.0

PXL_20260530_163012660.MP.jpg

PXL_20260530_163012660.MP.jpg

By Sven Buerki

CC-BY-NC-SA-4.0

PXL_20260530_162956088.MP.jpg

PXL_20260530_162956088.MP.jpg

By Sven Buerki

CC-BY-NC-SA-4.0

PXL_20260530_163002130.MP.jpg

PXL_20260530_163002130.MP.jpg

By Sven Buerki

CC-BY-NC-SA-4.0

PXL_20260530_162949101.MP.jpg

PXL_20260530_162949101.MP.jpg

By Sven Buerki

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 081.jpg

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 081.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 044.jpg

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 044.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 049.jpg

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 049.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 046.jpg

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 046.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 080.jpg

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 080.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 042.jpg

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 042.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 079.jpg

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 079.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 050.jpg

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 050.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 086.jpg

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 086.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 043.jpg

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 043.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 047.jpg

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 047.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 045.jpg

Philadelphus lewisii, CDavidson11079--ID. Boise Co. St Hwy 21, 11.7 mi S of Idaho City. 17 Jun 07 045.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (28).JPG

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (28).JPG

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (38).JPG

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (38).JPG

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (33).JPG

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (33).JPG

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (25).JPG

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (25).JPG

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (26).JPG

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (26).JPG

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (37).JPG

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (37).JPG

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (29).JPG

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (29).JPG

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (27).JPG

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (27).JPG

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (36).JPG

Philadelphus lewisii, C. Davidson 13620--OR. Malheur Co. Hwy 20 E of Juntura. 8 June 2017. DSC01569 (36).JPG

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 078.jpg

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 078.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 082.jpg

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 082.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 087.jpg

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 087.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 084.jpg

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 084.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 086.jpg

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 086.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 083.jpg

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 083.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 085.jpg

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 085.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 088.jpg

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 088.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 079.jpg

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 079.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 089.jpg

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 089.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 081.jpg

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 081.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 080.jpg

Philadelphus lewisii, CDavidson11056--CA. Shasta Co. Lake Shasta. Waters Gulch Trail. 5 Jun 07. 080.jpg

By Christopher Davidson

CC-BY-NC-SA-4.0

Native to Alberta, British Columbia, California, Idaho, Montana, Oregon, Washington; introduced into Uzbekistan, West Himalaya (source: POWO). Flora of the World documents 4 occurrences across 1 country.

Distribution

Distribution from Plants of the World Online (POWO). View the accepted name on POWO

Occurrences

Buerki S., Buerki F. s.n.

May 30, 2026

Location

United States, Idaho, Boise County (Horseshoe Bend)

43.880646, -116.210635

Location Remarks

By the horse arena in the subdivision.

Collectors

Sven Buerki, Fanny Buerki

Identified by

Sven Buerki

Notes

Shrub; flowering, fragrant flowers

Davidson C., Christoph S.R. 11056

June 5, 2007

Location

United States, California, Shasta (Bella Vista)

40.680083, -122.16925

Location Remarks

On Hwy 299 east of Redding.

Collectors

Christopher Davidson, Sharon R. Christoph

Davidson C., Christoph S.R. 11079

June 17, 2007

Location

United States, Idaho, Boise (Lowman)

44.083139, -115.754194

Location Remarks

Ca. 4.2 km N of Banks-Lowman Rd (Hwy 17) on Scott Mtn Lookout Rd. (FSR 555BC). Elev. 1170 m.

Collectors

Christopher Davidson, Sharon R. Christoph

Davidson C., Christoph S.R. 13620

June 8, 2017

Location

United States, Oregon, Malheur (Harper)

43.776083, -117.754528

Location Remarks

Hwy 20, ca. 37 km east of Frances St. in Juntura, in Simmons Gulch. Elev. 852 m.

Collectors

Christopher Davidson, Sharon R. Christoph

Notes

Dirt bank just above cobbley gravel bar in the gulch, tributary to Malheur River.

Classification

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Cornales

Family

Hydrangeaceae

Genus

Philadelphus

Specific Epithet

lewisii

Authorship

Pursh

Taxonomic Opinions

GBIFWFOPOWO

Conservation (EDGE)

What is EDGE?

Evolutionary distinctiveness

Lower

ED 0.8

Part of a well-represented branch of the plant tree of life, with many close relatives.

Threat status

Predicted not threatened

Modelled estimate

EDGE score

0.1

Global rank

#288,863 of 335,497

Top 87%

Extinction probability

10%

Source: Flowering plants EDGE assessment →