Wildlife & Environment 27 October 2026
Two New Flowering Plant Species 'Ophiorrhiza shidiensis' and 'Ophiorrhiza pemae' Discovered in Arunachal Pradesh
Why in the News?
Researchers have discovered two new flowering plant species—**Ophiorrhiza shidiensis** and **Ophiorrhiza pemae**—belonging to the **Rubiaceae** family in the remote Vijoynagar valley of Changlang district, Arunachal Pradesh. The research was published online in the international botanical journal *Taiwania* on October 23, 2026.
Key Features / Major Points:
- Research Team: Discovered by a research team comprising **Krishna Chowlu, Renthlei Lalnunfeli, and Dr. Vinay Kumar Sahani** representing the Botanical Survey of India (BSI) and Madras Christian College.
- Species Profiles:
- **Ophiorrhiza shidiensis:** An erect perennial herb growing up to 1 metre tall with pale-green leaf undersides and white to rose-pink flowers (1,100–2,000 m altitude). Named after "Shidi," the local Lisu (Yobin) name for Gandhigram village. Provisionally categorized as **Endangered**.
- **Ophiorrhiza pemae:** Thrives in high-altitude temperate forests (2,100–2,600 m), featuring larger leaves and light-pink to purplish flowers. Named in honor of Arunachal Pradesh Chief Minister **Pema Khandu**. Provisionally listed as **Vulnerable**.
- Scientific & Ecological Significance:
- Located within the **Indo-Burma Biodiversity Hotspot**, highlighting the rich flora of Northeast India.
- The genus *Ophiorrhiza* is economically and medicinally vital for producing **camptothecin (CPT)**, a crucial potent alkaloid used in anti-cancer drugs.
Static GK Facts:
- Rubiaceae Family:
- Commonly known as the **coffee, madder, or bedstraw family**.
- Botanical Survey of India (BSI):
- Established: **February 13, 1890** | Headquarters: **Kolkata, West Bengal**.
- Parent Ministry: **Ministry of Environment, Forest and Climate Change (MoEFCC)**.
- Indo-Burma Biodiversity Hotspot:
- Covers parts of Northeastern India, Myanmar, Thailand, Vietnam, and surrounding regions.
One-Liner Quiz (All Competitive Exams):
Q: The newly discovered plant species 'Ophiorrhiza pemae' in Arunachal Pradesh has been named after which personality?
A: Pema Khandu (Chief Minister of Arunachal Pradesh)
Q: To which plant family do the newly discovered species Ophiorrhiza shidiensis and Ophiorrhiza pemae belong?
A: Rubiaceae (Coffee Family)
Q: The genus 'Ophiorrhiza' is renowned for yielding which essential compound used in anti-cancer therapeutics?
A: Camptothecin (CPT)
Q: Where is the headquarters of the Botanical Survey of India (BSI) situated?
A: Kolkata, West Bengal
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