Family: Araceae
Alocasia sanderiana, commonly called kris plant or elephant’s ear, is a striking ornamental grown for its dramatic foliage. Native to the Philippines, this plant is prized for its long, arrow-shaped leaves with bold white veins that contrast sharply against the dark green surface. Its unique, glossy leaves give it a sculptural appearance, making it a popular choice for tropical gardens and as a container plant in shaded landscapes. It thrives in humid environments and prefers partial to full shade, well-draining soil, and regular moisture.
In the Hawaiian Islands, Alocasia sanderiana is only found in cultivation and has not been observed naturalizing. While it adds beauty and exotic appeal to landscapes, caution should still be used when planting. Like other members of the arum family, this species contains calcium oxalate crystals, which can be toxic to humans and animals if ingested. Though not currently an invasive concern, responsible cultivation and proper disposal of plant material will help ensure it remains a safe and non-invasive ornamental option for Hawaiʻi.
High Risk Traits:
- Climate Match: Highly suited to tropical/subtropical climates.
- Introduction History: Repeatedly introduced as an ornamental.
- Congeneric Weeds: Other Alocasia species are invasive weeds.
- Toxicity: Toxic to humans and animals if ingested.
- Shade Tolerant: Can establish in understory habitats.
- Vegetative Reproduction: Regenerates from tubers/rhizomes after damage.
Low Risk Traits:
- No Naturalization: Not documented as naturalized outside its native range.
- Not Weedy: No evidence of being a weed itself.
- No Physical Defenses: Lacks spines, thorns, or burrs.
- Specialist Pollination: Requires specific pollinators, limiting seed set.
- Poor Natural Dispersal: Propagules not suited for wind, animal, or water dispersal.
- Low Reproductive Output: Relies on human propagation; viable seeds are rare.
