Colin Mills, compiler of the Hortus Camdenensis, died in late November 2012 after a short illness. As he always considered the Hortus his legacy, it is his family's intention to keep the site running in perpetuity. It will not, however, be updated in the near future.

Oenothera acaulis Cav.

Borderline fully hardy, clump-forming, short-lived perennial with trumpet-shaped white flowers opening in the evening, turning pink the next day, in summer.  To 15cm.  [RHSE, Hortus].

Horticultural & Botanical History

Introduced to Britain in 1821.  [JD].  Don.  Saint-Hilaire pl.263/1830.

History at Camden Park

Listed in the 1845, 1850 and 1857 catalogues [H.160/1845].


Oenothera acaulis Lindl. (1823) = Oenothera cuspidata Steud.   This may be Macarthur’s plant.

Published Feb 12, 2009 - 04:35 PM | Last updated Jul 28, 2010 - 03:30 PM

The image depicts roots, toothed leaves and pink flowers.  Saint-Hilaire pl.263, 1830.

Oenothera acaulis Cav. | Saint-Hilaire pl.263/1830 | BHL

Family Onagraceae
Region of origin


  • Oenothera taraxacifolia Hort. ex Sweet
Common Name
Name in the Camden Park Record

Oenothera acaulis 

Confidence level medium