evening-primrose

He bought a barrel of barrier cream, which protects the skin from chemicals, and, based on what he could cull from library books and guesswork, began adding ingredients: aloe vera, evening-primrose oil, triclosan (an antibacterial agent), silicon and so on.

Britain's Accidental Inventor 2008

There is as yet no evening-primrose to open suddenly, no cistus to drop its petals; but the May-flower knows the hour, and becomes more fragrant in the darkness, so that one can then often find it in the woods without aid from the eye.

The Atlantic Monthly, Volume 07, No. 42, April, 1861 Various

Further promise of yellow beauty was given by the stalks of the evening-primrose scattered on every hand, the flowers furled now, sleeping.

The Bells of San Juan Jackson Gregory 1912

On the supposition of permanency all the ancestors of the evening-primrose must have been mutable.

Species and Varieties, Their Origin by Mutation Hugo de Vries 1891

Such casual changes can be proved by observations such as those upon the evening-primrose, but it is obvious that a disproof can never be given.

Species and Varieties, Their Origin by Mutation Hugo de Vries 1891

New elementary [17] species are far more rare, but I have discovered in the great evening-primrose, or _Oenothera lamarckiana_ a strain which is producing them yearly in the wild state as well as in my garden.

Species and Varieties, Their Origin by Mutation Hugo de Vries 1891

In this way too, the mutation-period of the evening-primrose is to be considered as a prototype.

Species and Varieties, Their Origin by Mutation Hugo de Vries 1891

One of them is called _scintillans_ or the shiny evening-primrose, because its leaves are of a deep green color with smooth surfaces, glistening in the sunshine.

Species and Varieties, Their Origin by Mutation Hugo de Vries 1891

Small linear petals occur as a specific character in _Oenothera cruciata_ of the Adirondacks, but have been seen to arise as sudden mutations in the common evening-primrose (_O. biennis_) in Holland, and in the willow-herb (_Epilobium hirsutum_) in

Species and Varieties, Their Origin by Mutation Hugo de Vries 1891

The blade shows numbers of convexities on either surface, the whole surface being undulated in this manner; it lacks also the brightness of the ordinary evening-primrose or _Oenothera biennis_.

Species and Varieties, Their Origin by Mutation Hugo de Vries 1891