Ivesia baileyi var. beneolens
Owyhee ivesia, Owyhee Ivesia
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Family: Rosaceae · Type: Herb · Native
Conservation status: CNPS 2B.3
Ivesia baileyi var. beneolens (Owyhee ivesia) is a native California herb in the Rosaceae family, recognized by white vs. yellow flowers and ridged vs. smooth fruits separate from var. baileyi.
Owyhee ivesia is a rare (CNPS 2B.3) California native perennial found in western bioregions in volcanic crevices at elevations around 2,150 meters. Flowering from June to July, this plant produces delicate white petals in small, distinctive clusters. Growing with slender stems emerging from rocky terrain, it forms compact clumps typically low to the ground. Its leaves are finely divided, creating a dense, intricate foliage pattern that helps the plant blend into its harsh volcanic habitat. The plant's small white flowers emerge from pedicels 6 to 12 millimeters long, with hypanthium bracts less than half the length of the sepals.
Identification and appearance
Key characters: 6 sympatric species; white vs. yellow flowers and ridged vs. smooth fruits separate from var. baileyi
Habitat and range
Habitat: Volcanic crevices
Elevation: +- 2150 m.
Outside California: to southeastern Oregon, southern Idaho, northern Nevada
Bloom period
Ivesia baileyi var. beneolens blooms Jun-Jul.
Conservation status
CNPS 2B.3
How to tell it apart
vs Achillea: Ivesia has rose-like flowers with separate petals; Achillea has composite flower heads with ray and disk flowers.; vs Potentilla: Ivesia has cylindrical bottlebrush leaves with 4-80 tiny leaflets per side; Potentilla has flat leaves with spread-out leaflets.; vs Horkelia: Ivesia has cylindrical leaves with overlapping leaflets; Horkelia has flat leaves with 2-15 distinct, separated leaflets.; vs Eremogone: Ivesia has compound bottlebrush leaves; Eremogone has simple, needle-like or thread-like leaves.; vs Cryptantha: Ivesia has rose-family flowers with separate petals; Cryptantha has fused tubular corollas typical of borages.
Frequently asked questions
Is Ivesia baileyi var. beneolens native to California?
Yes. Ivesia baileyi var. beneolens is native to California (recorded as native).
When does Ivesia baileyi var. beneolens bloom?
Ivesia baileyi var. beneolens blooms Jun-Jul.
What plant family does Ivesia baileyi var. beneolens belong to?
Ivesia baileyi var. beneolens is in the Rosaceae family, genus Ivesia.
Is Ivesia baileyi var. beneolens rare or endangered?
Ivesia baileyi var. beneolens carries California Rare Plant Rank 2B.3, state rank S1.
What habitat does Ivesia baileyi var. beneolens grow in?
Ivesia baileyi var. beneolens grows in Volcanic crevices.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · CalPhotos · CDFW CNDDB
Last updated 2026-10-07
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.