Taxonomic history:
1753: Linnaeus described this species as Convolvulus medium in Species Plantarum, 1st ed., p. 156.
today: The current name for this species is Merremia medium (L.) Hallier f.
original Latin description
Convolvulus foliis hastato-acuminatis: auriculis dentatis, pedunculis subunifloris, calycibus sagittatis.
English translation
Convolvulus with leaf blades hastate-acuminate [and] with auricles dentate; with peduncles usually one-flowered; [and] with calyces sagittate.
| Convolvulus | Convolvulus |
| with leaf blades | foliis - ablative plural of second declension neuter noun folium, -i |
| hastate-acuminate | hastato-acuminatis = hastato- (combining form of group A adjective hastatus, -a, -um) + acuminatis (ablative plural neuter of group A adjective acuminatus, -a, -um); modifies foliis |
| [and] | [added for smoother reading] |
| with auricles | auriculis - ablative plural of first declension feminine noun auricula, -ae |
| dentate; | dentatis - ablative plural feminine of group A adjective dentatus, -a, -um; modifies auriculis |
| with peduncles | pedunculis - ablative plural of second declension masculine noun pedunculus, -i |
| usually one-flowered; | subunifloris - ablative plural masculine of group A adjective subuniflorus, -a, -um; modifies pedunculis |
| [and] | [added for smoother reading] |
| with calyces | calycibus - ablative plural of third declension masculine noun calyx, calycis; |
| sagittate. | sagittatis - ablative plural masculine of group A adjective sagittatus, -a, -um; modifies calycibus |