Harmonia stebbinsii
Stebbins' harmonia
(c) Steve Matson, some rights reserved (CC BY), uploaded by Steve Matson · licence
Family: Asteraceae · Type: Herb · Native
Conservation status: CNPS 1B.2
Harmonia stebbinsii (Stebbins' harmonia) is a native California herb in the Asteraceae family.
Stebbins' harmonia is a rare (CNPS 1B.2) California native annual found in southern Klamath Ranges and northern North Coast Ranges Inland in serpentine slopes at elevations of 1,100 to 1,600 meters. Flowering from May to July, this plant produces white flowers with 4 to 6 ray flowers measuring 4 to 6.5 millimeters long. Growing 5 to 27 centimeters tall with an unbranched central stem that is shorter than its flowering branches, the plant has densely clustered leaves near the stem's distal end. Its leaves are primarily concentrated on the central stem and immediately proximal to branches supporting flower heads, with phyllaries that are densely covered in soft white hairs along folded edges. The fruit consists of ray fruits slightly bowed outward and disk fruits with plumose pappus scales 1.2 to 3.5 millimeters long.
Identification and appearance
Key characters: 3 sympatric species; key differentiator is long plumose pappus scales on disk fruits
Habitat and range
Habitat: Serpentine slopes
Elevation: 1100-1600 m
California counties: Tehama, Trinity, Shasta, Lake
Bloom period
Harmonia stebbinsii blooms May-Jul.
Conservation status
CNPS 1B.2
How to tell it apart
vs Hippodamia: Harmonia is a plant with yellow flowers; Hippodamia is a ladybird beetle.; vs Coccinella: Harmonia is a flowering plant; Coccinella is a ladybird beetle.; vs Cycloneda: Harmonia is a plant genus; Cycloneda is a beetle genus.; vs Chilocorus: Harmonia is a composite flower; Chilocorus is a ladybird beetle.; vs Olla: Harmonia is a tarweed plant; Olla is a beetle.
Frequently asked questions
Is Harmonia stebbinsii native to California?
Yes. Harmonia stebbinsii is native to California (recorded as native).
When does Harmonia stebbinsii bloom?
Harmonia stebbinsii blooms May-Jul.
Where in California does Harmonia stebbinsii grow?
Harmonia stebbinsii occurs in Tehama, Trinity, Shasta, Lake, at elevations of 1100-1600 m.
What plant family does Harmonia stebbinsii belong to?
Harmonia stebbinsii is in the Asteraceae family, genus Harmonia.
Is Harmonia stebbinsii rare or endangered?
Harmonia stebbinsii carries California Rare Plant Rank 1B.2, state rank S2.
Related species
Other California species in the same genus, family, or bioregion.
- Harmonia doris-nilesiae — Niles' harmonia
- Harmonia guggolziorum — Guggolz's harmonia
- Harmonia hallii — Hall's harmonia
- Harmonia nutans — Nodding harmonia
- Harmonia sp.
- Hazardia brickellioides — Brickell goldenbush
- Hazardia cana — San clemente island hazardia
- Hazardia detonsa — Island hazardia
- Hazardia orcuttii — Orcutt's hazardia
Sources: Jepson eFlora · CNPS Rare Plant Inventory · Index of California Plant Names · 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.