Kauaʻi record · kba_plant_sida_spinosa
Prickly Sida
Sida spinosa
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About Prickly Sida
A small erect herb or subshrub with fine stellate hairs and narrowly oblong-to-ovate, serrate-to-crenate leaves. Each slender stipule has a short basal tubercle. Small pale-yellow flowers develop into fruits of five reticulate segments, each with two short forward-hairy awns. 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
- Sida spinosa
- Common names
- prickly sida
- Other names
- Sida spinosa · prickly sida
- 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. Do not turn the small stipular tubercles into large woody stem thorns. Retain five fruit segments and short paired awns.
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; Erect annual, perennial herb, or subshrub, 0.3‒0.8 m tall; copiously minutely stellate puberulent, eventually 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 small erect herb or subshrub with fine stellate hairs and narrowly oblong-to-ovate, serrate-to-crenate leaves. Each slender stipule has a short basal tubercle. Small pale-yellow flowers develop into fruits of five reticulate segments, each with two short forward-hairy awns. 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.