World·Source-based summary

In 1883, Hawaii introduced Guinea grass; 143 years later,it grows 9 feet and yields 9,000 seeds

Once celebrated for its grazing benefits, Guinea grass has become a formidable threat to Hawaii's delicate ecosystems. Since its introduction in the 19th century, it has proliferated, reaching impressive heights. This resilient perennial can generate thousands of seeds and reboun

This is a source-based summary, not original reporting by Ebenezer journalists. Source: Times of India · Original byline: TOI World Desk. Ebenezer published 10 Sept 2026, 10:10 am. Editorial policy.

World — TOI World Desk