Eulophia hians var. hians flowers

The flowers of Eulophia hians var. hians grow well spaced in an erect spike. Each flower grows from a longish pedicel causing it to nod. A single bract can be seen at the base of the pedicel. The characteristic lip crest is clearly visible in this photo. This crest consists of rows of wart-like protuberances, standing neatly arranged in a rectangular pattern in the centre of the lip, away from the margins. The purple and white flower colouring makes way for pale yellow on the warts.

The upper two petals, inside the hood and the two purple lateral sepals, lean forward and are white on their visible (outside) surfaces. The spur at the back of the flower can be seen on the unopened bud on the left. Its tip is turned down. Pollinators extract their nectar reward from here. 

Flowering happens from late winter until early summer. (iNaturalist; Wikipedia; https://www.worldfloraonline.org).