screw augur

Thesaurus

Noun

1.

screw augur - an orchid of the genus Spiranthes having tall erect densely flowered spiraling clusters of creamy white vanilla-scented flowers; widely distributed especially in low damp places of eastern and central North AmericaSpiranthes cernuagenus Spiranthes, Spiranthes - large cosmopolitan genus of white-flowered terrestrial orchidsladies' tresses, lady's tresses - an orchid of the genus Spiranthes having slender often twisted spikes of white flowers