Epilobium amurense Hausskn. (Stems with 2(or 4) ± distinct raised strigillose lines decurrent from margins of petioles, or rarely subglabrous throughout. Petals white, pink or rose-purple, 4.5-8(-10) mm. Stigma capitate or broadly capitate, entire.)
Epilobium brevifolium subsp. brevifolium (As per efi thread: Stems 15-90 cm tall, simple or branched, strigillose throughout, sometimes mixed with glandular hairs on inflorescence, lacking raised decurrent lines. Petals pink to rose-purple, 7-11 mm. Stigma clavate or broadly so, entire)
Epilobium (Onagraceae) page with images of species in efloraofindia : 2 posts by 1 author.
If you find any incorrect identification, pl. let us know. If anybody can send images of other species of this genera (for incorporation in the website), if any, or can identify unidentified images, it will be really nice.