Eustoma exaltatum subsp. exaltatum
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Family: Gentianaceae · Type: Herb · Native
Eustoma exaltatum subsp. exaltatum is a native California herb in the Gentianaceae family, recognized by Warm temperate American genus; much larger flowers than typical Gentianaceae, representing different pollination strategy.
Seaside gentian is a California native perennial found in southern California, the Peninsular Ranges, and the Sonoran Desert in alkaline marshes and roadsides at elevations of 100 to 600 meters. Flowering essentially year-round, this plant produces pale to deep violet-blue flowers 2 to 4.5 centimeters long with white throats marked by dark purple blotches. Growing 15 to 100 centimeters tall with multiple upright stems, it develops a robust branching structure. Its leaves range from spoon-shaped to elliptic, with basal leaves 2 to 10 centimeters long and cauline leaves 1.5 to 9 centimeters long, varying from obtuse to acute in shape. The flower's elegant violet-blue petals with distinctive white and dark purple throat markings make this gentian a striking presence in wet, open habitats.
Identification and appearance
Key characters: Warm temperate American genus; much larger flowers than typical Gentianaceae, representing different pollination strategy
Habitat and range
Habitat: Roadsides, alkaline marshes, other open, wet places
Elevation: 100-600 m
Outside California: to southeastern United States, Central America, West Indies
Bloom period
Eustoma exaltatum subsp. exaltatum blooms +- all year.
How to tell it apart
vs Zeltnera: Eustoma has wide bell-shaped flowers; Zeltnera has narrow-tubed flowers.; vs Centaurium: Eustoma has wide bell-shaped flowers; Centaurium has narrow-tubed flowers.; vs Gentianopsis: Eustoma has bell-shaped flowers; Gentianopsis has fringed petals.; vs Gentianella: Eustoma has wide bells; Gentianella has tubular flowers.; vs Comastoma: Eustoma has large bell-shaped flowers; Comastoma has small tubular ones.
Frequently asked questions
Is Eustoma exaltatum subsp. exaltatum native to California?
Yes. Eustoma exaltatum subsp. exaltatum is native to California (recorded as native).
When does Eustoma exaltatum subsp. exaltatum bloom?
Eustoma exaltatum subsp. exaltatum blooms +- all year.
What plant family does Eustoma exaltatum subsp. exaltatum belong to?
Eustoma exaltatum subsp. exaltatum is in the Gentianaceae family, genus Eustoma.
What habitat does Eustoma exaltatum subsp. exaltatum grow in?
Eustoma exaltatum subsp. exaltatum grows in Roadsides, alkaline marshes, other open, wet places.
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.