Heterostemma grandiflorum Costantin belongs to the Apocynaceae family. Flora of the World contains 1 recorded occurrence of this taxon, distributed across 1 country.
Heterostemma grandiflorum, D. Boufford 44180--China. Yunnan. Meng Lun to Meng Tang on G213. 7 May 2018. DSC03328 (118).JPG
Family
Apocynaceae
Genus
Heterostemma
Specific Epithet
grandiflorum
Authorship
Costantin
5/7/2018
Location
China, Yunnan, Jinghong.
21.970833, 101.195000
Location Remarks
Xishuangbanna Daizuzi-Zhizhou; NW of Menglun-zhen between Menglun-zhen and Jingzu-Xiang on route G213 along a tributary of the Nanban Jiang (Nanban River). Mixed broadleaved evergreen and deciduous forest with Fagaceae and Lauraceae common on steep, unaltered slopes, also Duabanga common along main stream; most of forest on accessible slopes converted to rubber plantations. 830-920 m. elev.
Collectors
David E. Boufford, Sharon R. Christoph, Christopher Davidson, Xin-Han HUANG, Zhuo ZHOU
Notes
Climbing on shrubs in thicket on slope above stream; in open and in sunlight for most of day. Vine, ca. 7 m long; broken stem and leaves with copious milk-like sap; calyx green; petals dark brownish yellow, center portion dark purple.
