Cycladenia humilis var. jonesii
Jones' waxydogbane
(c) Laura Camp, some rights reserved (CC BY-SA) · licence
Family: Apocynaceae · Type: Herb · Native
Cycladenia humilis var. jonesii (Jones' waxydogbane) is a native California herb in the Apocynaceae family, recognized by restricted to W&I bioregion on shale slides.
Jones' waxydogbane is a California native perennial found in the Inyo Mountains on shale slides at elevations of 2,530 meters. Flowering in July, this plant produces small flowers with pale petals approximately 4 to 5 millimeters long. Growing with a generally glaucous and glabrous appearance, it develops an erect habit with subtle textural variations. Its stems and leaves appear smooth and bluish-green, with an overall delicate structure. The plant is notable for its sparse, fine hairs on the flower's inner surfaces, giving it a subtle, refined botanical character.
Identification and appearance
Key characters: Geographically isolated; restricted to W&I bioregion on shale slides
Habitat and range
Habitat: Shale slides
Elevation: 2530 m
Outside California: Utah, Arizona
Bloom period
Cycladenia humilis var. jonesii blooms Jul.
How to tell it apart
vs Diplacus: Cycladenia has thick waxy opposite leaves and trumpet flowers with five equal lobes; Diplacus has thin leaves and two-lipped snapdragon flowers.; vs Mirabilis: Cycladenia has fleshy waxy leaves and tubular flowers with five petals; Mirabilis has thin leaves and petalless flowers with colored sepals.; vs Koenigia: Cycladenia has large showy trumpet flowers and opposite leaves; Koenigia has tiny flowers and alternate leaves.; vs Vinca: Cycladenia has thick succulent leaves and grows upright; Vinca has thin glossy leaves and trails on ground.; vs Amsonia: Cycladenia has thick waxy opposite leaves; Amsonia has thin alternate leaves spiraling up stem.
Frequently asked questions
Is Cycladenia humilis var. jonesii native to California?
Yes. Cycladenia humilis var. jonesii is native to California (recorded as native).
When does Cycladenia humilis var. jonesii bloom?
Cycladenia humilis var. jonesii blooms Jul.
What plant family does Cycladenia humilis var. jonesii belong to?
Cycladenia humilis var. jonesii is in the Apocynaceae family, genus Cycladenia.
What habitat does Cycladenia humilis var. jonesii grow in?
Cycladenia humilis var. jonesii grows in Shale slides.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · CalPhotos
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.