Also known as Clarkia tenella. Also known as lady in blue.
Source: Edwards’s Botanical Register Vol. XIX (19: plate 1587. 1835).
Part of the digital exhibition "Treasures of the Rare Book Collection - Plants from Mediterranean Climate Areas" by the The Arboretum Library — Los Angeles County Arboretum & Botanic Garden.
See the whole exhibition here bit.ly/FQdSyY