Kauaʻi record · kba_plant_stachytarpheta_mutabilis
Changeable Vervain
Stachytarpheta mutabilis
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About Changeable Vervain
A stout branched perennial herb or subshrub, densely hairy throughout. Opposite ovate-to-oblong leaves have rough wrinkled upper surfaces, woolly undersides and forward-directed marginal teeth. Stout erect hairy spikes carry showy magenta-to-rose tubular flowers, a representative form fading pink as flowers age. 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
- Stachytarpheta mutabilis
- Common names
- changeable vervain
- Other names
- Stachytarpheta mutabilis · changeable vervain
- 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. Use one magenta-to-rose form, without combining the separately described purple-to-blue form. Preserve stout hairy spikes, distinct from Branched Porterweed.
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 subshrubs 10-20(-50) dm tall; stems stout, branched, densely tomentose or villous throughout.
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 stout branched perennial herb or subshrub, densely hairy throughout. Opposite ovate-to-oblong leaves have rough wrinkled upper surfaces, woolly undersides and forward-directed marginal teeth. Stout erect hairy spikes carry showy magenta-to-rose tubular flowers, a representative form fading pink as flowers age. 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.