Native to China South-Central, Laos, Thailand, Vietnam (source: POWO). Flora of the World documents 1 occurrence across 1 country.
Location
Vietnam, Ninh Binh, Nho Quan
20.279278, 105.679
Location Remarks
Cuc Phuong National Park. Ca. 5 km on Dang village road, toward helipad.
Collectors
Nguyen Sinh Khang, Christopher Davidson, Sharon R. Christoph
Kingdom
Plantae
Phylum
Tracheophyta
Class
Magnoliopsida
Order
Lamiales
Family
Carlemanniaceae
Genus
Silvianthus
Specific Epithet
tonkinensis
Authorship
(Gagnep.) Ridsdale
What is EDGE?
Evolutionary distinctiveness
Lower
ED 0.3
Part of a well-represented branch of the plant tree of life, with many close relatives.
Threat status
Modelled estimate
EDGE score
0.0
Global rank
#315,564 of 335,497
Top 95%
Extinction probability
11%