SUBGENUS: passiflora
SUPERSECTION: stipulata
SECTION: granadillastrum
GEOGRAPHICAL DISTRIBUTION OR ORIGIN:
Northeastern Brazil.
MINIMUM TEMPERATURE: 8 °C
IDEAL MINIMUM TEMPERATURE: 12 °C
SYNONYMS: P. barbosae Barb. Rodr.
ETYMOLOGY: From the Latin subrotunda, almost round with reference to the shape of the leaves.
The sub prefix in botanical etymology means 'almost'.