Henckelia monophylla – Rare Plant Rediscovered in Arunachal Pradesh

Why in news?

Botanists from the Botanical Survey of India (BSI) have rediscovered Henckelia monophylla, a rare flowering plant, in the forests of Arunachal Pradesh after nearly 189 years. The species had not been seen since the mid‑19th century.

Background

Henckelia monophylla belongs to the family Gesneriaceae. It was first collected in 1836 by the British botanist William Griffith from the Mishmi Hills of Assam (now part of Arunachal Pradesh). After its initial collection, the plant was not recorded again and was considered lost. BSI researchers conducting a botanical survey in Lohit district recently encountered the species in a moist, forested habitat.

Characteristics

• Plants in the genus Henckelia typically have upright or slightly trailing stems with simple leaves. H. monophylla produces axillary inflorescences bearing tubular or funnel‑shaped flowers with delicate colours.
• The fruits are elongated capsules containing numerous tiny seeds. Such features help the plant disperse its seeds effectively in its native forest habitat.
• The rediscovered individuals were found growing as perennials in shaded, moist slopes, indicating that the species thrives in undisturbed evergreen forests.

Significance of rediscovery

• The find underscores the Eastern Himalaya’s status as a biodiversity hotspot where many plants remain undocumented or poorly studied. Rediscovering lost species expands scientific knowledge and can inform conservation strategies.
• Continuous field surveys are crucial for documenting plant diversity, assessing the conservation status of rare species and identifying areas that warrant protection.
• Protecting intact forests in Arunachal Pradesh not only safeguards charismatic animals but also preserves unique plant species like H. monophylla.

Conclusion

The rediscovery of Henckelia monophylla after nearly two centuries is a reminder that much of India’s botanical wealth remains hidden in remote forests. Sustained exploration and conservation are essential to protect these natural treasures.

Source: Livemint