Kauaʻi record · kba_plant_hibiscus_ovalifolius
Rock's Hibiscus
Hibiscus ovalifolius
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About Rock's Hibiscus
A perennial shrub with hairy young stems and rounded, sometimes shallowly lobed, toothed leaves. Solitary flowers have sulfur-yellow flaring petals with maroon bases, a short enclosed staminal column and five large involucral bracts abruptly narrowed into long tips. Hairy ellipsoid capsules contain small hairy seeds. Established wild occurrence warrants observations of occupied cover, reproductive plants and new recruits. These measurements can test persistence and spread. The reviewed accounts do not quantify an island-wide effect on Kauaʻi native vegetation.
Kauaʻi evidence
Generated media is not occurrence evidence. Proposed monitoring endpoints are not reported observations, measured effects or causal findings.
Names and classification
- Scientific name
- Hibiscus ovalifolius
- Common names
- Rock's hibiscus
- Other names
- Hibiscus ovalifolius · Rock's hibiscus
- Record type
- Species
Kauaʻi occurrence and status
- Kauaʻi occurrence
- Recorded on Kauaʻi
- Origin
- Introduced
- Conservation status
- Not yet assessed
- Evidence date
- 2026-10-07
- Evidence limits
- Island-level public occurrence only. The regional Smithsonian description is explicitly carried from Hibiscus calyphyllus; use the frozen regional identity with that historical taxon concept noted.
Habitat and ecology
- Habitats
- Not yet assessed
- Food and resource needs
- Not yet assessed
- Reproduction
- Not yet assessed
- Shelter
- Not yet assessed
- Growth form
- Shrub or subshrub; Perennial herbs or shrubs 1-3 m tall; young stems green, stellate tomentose, later glabrate.
Threats and conservation
- Monitoring
- Occupied area and vegetation cover; Mature plants and new recruits; Reproductive plants and fruiting frequency. Proposed monitoring endpoints are not reported observations, measured effects or causal findings.
- Data gaps
- Current island extent and population trend · Measured local ecological effects
Process and seasonal context
- Seasonal timing
- Not yet assessed
- Seasonal description
- A perennial shrub with hairy young stems and rounded, sometimes shallowly lobed, toothed leaves. Solitary flowers have sulfur-yellow flaring petals with maroon bases, a short enclosed staminal column and five large involucral bracts abruptly narrowed into long tips. Hairy ellipsoid capsules contain small hairy seeds. Established wild occurrence warrants observations of occupied cover, reproductive plants and new recruits. These measurements can test persistence and spread. The reviewed accounts do not quantify an island-wide effect on Kauaʻi native vegetation.