Calystegia stebbinsii
Stebbins' morning-glory, Stebbins' Morning-Glory
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Family: Convolvulaceae · Type: Vine · Native
Conservation status: CNPS 1B.1 · Endangered
Calystegia stebbinsii (Stebbins' morning-glory) is a native California vine in the Convolvulaceae family, recognized by distinctive palmate leaves and yellow flowers.
Stebbins' morning-glory is a rare (CNPS 1B.1) California native perennial found in northern Sierra Nevada Foothills in El Dorado and Nevada counties in chaparral at elevations of 300 meters. Flowering from April to July, this plant produces creamy yellow flowers with a subtle pink tinge, approximately 30 to 35 millimeters long. Growing with trailing to climbing stems less than one meter tall, it emerges from a slightly woody caudex with white to grayish hairs. Its distinctive leaves feature 7 to 9 deep palmate lobes, with linear segments up to 55 millimeters long and margins gently upturned. The plant's delicate stems produce peduncles 3 to 13 centimeters long, often extending well beyond the subtending leaf.
Identification and appearance
Key characters: 4 sympatric species; distinctive palmate leaves and yellow flowers
Habitat and range
Habitat: Chaparral
Elevation: 300 m
California counties: El Dorado, Nevada
Bloom period
Calystegia stebbinsii blooms Apr-Jul.
Conservation status
CNPS 1B.1 · Endangered
How to tell it apart
vs Convolvulus: Convolvulus has smaller flowers with sharply pointed stigma lobes; Calystegia stigma lobes are blunt.; vs Ipomoea: Ipomoea stigma is a single rounded knob; Calystegia stigma has two distinct flattened lobes.; vs Datura: Datura flowers are upright with pleated edges; Calystegia flowers are smooth funnels.; vs Abronia: Abronia has clusters of small tubular flowers; Calystegia has single large funnel flowers.; vs Oenothera: Oenothera has four separate petals; Calystegia petals are fused into continuous funnel.
Frequently asked questions
Is Calystegia stebbinsii native to California?
Yes. Calystegia stebbinsii is native to California (recorded as native).
When does Calystegia stebbinsii bloom?
Calystegia stebbinsii blooms Apr-Jul.
Where in California does Calystegia stebbinsii grow?
Calystegia stebbinsii occurs in El Dorado, Nevada, at elevations of 300 m.
What plant family does Calystegia stebbinsii belong to?
Calystegia stebbinsii is in the Convolvulaceae family, genus Calystegia.
Is Calystegia stebbinsii rare or endangered?
Calystegia stebbinsii carries California Rare Plant Rank 1B.1, state rank S1.
Related species
Other California species in the same genus, family, or bioregion.
- Calystegia subacaulis — Hill morning glory
- Calystegia subacaulis subsp. episcopalis — Cambria morning-glory
- Calystegia subacaulis subsp. subacaulis
- Calystegia vanzuukiae — Van Zuuk's morning-glory
- Calystegia atriplicifolia subsp. buttensis — Butte county morning-glory
- Calystegia collina — Coast range false bindweed
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.