Saxifragaceae

Large boykinia

Boykinia major A.Gray

Family: Saxifragaceae
Genus: Boykinia

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Large boykinia (Boykinia major) — FlowerPhoto: Hilary Rose Dawson, CC BY 4.0, from iNaturalist

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Common names

By language (1)

English: Large boykinia

Synonyms

Therofon majus (A.Gray) Wheelock

Flowers

In flower: July to August (from 36 flowering iNaturalist observations worldwide)

Characteristics

Growth habit: Forb/herb
Lifespan: Perennial
In the US and Canada: Lower 48 states: native

Photos

FlowerPhoto: Hilary Rose Dawson, CC BY 4.0, from iNaturalist
FlowerPhoto: Laurel Meredyk, CC BY 4.0, from iNaturalist
FlowerPhoto: fern Wildtruth, CC BY 4.0, from iNaturalist
FlowerPhoto: rappman, CC BY 4.0, from iNaturalist
LeavesPhoto: Daughter Dad, CC BY 4.0, from iNaturalist
LeavesPhoto: Daughter Dad, CC BY 4.0, from iNaturalist
LeavesPhoto: Daughter Dad, CC BY 4.0, from iNaturalist
Photo: 阿橋 HQ, CC BY-SA 2.0, from Wikimedia Commons
Photo: Robbie Hannawacker, CC0, from iNaturalist
Photo: Adam J. Searcy, CC BY 4.0, from iNaturalist
Photo: Henrik Kibak, CC BY 4.0, from iNaturalist
Photo: Matt Berger, CC BY 4.0, from iNaturalist

More in Boykinia

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.