A GUIDE TO THE WILD FLOWERS 



Flowers ^ in. wide or more 



Flowers solitary at the leaf-joints Rattle-box no. 407 



Flowers in clusters 



Night flowering, closing in sunlight 



Evening Primrose no. 408 



Day flowering, closing in the evening Sundrops no. 409 



406. Gold of Pleasure. Camelina sativa. {Cruciferac.) An 

 erect herb, 1-8 ft. high, not usually branched. Leaves 2-3 in. 

 long, pointed at the tip, broadest towards the stem-clasping 

 base. Flowers yellow, about ^ in. wide, in a terminal raceme. 

 Pod pear-shaped, but long beaked, about yi in. long. In 

 waste places nearly throughout our area. June. Native of 

 Europe. See No. 383. 



407. Rattle-box. Ludwigia alternifolia. (Onagraceae.) A 

 branching swamp or marsh herb, 2-3 ft. high, with alternate 

 toothless leaves that are lance-shaped, and 2-4 in. long, es- 

 sentially stalkless. Flowers solitary at the leaf-joints, about 

 ^ in. wide, yellow. Petals 4, sepals more or less united. 

 Fruit a capsule, cube-shaped, crowned with the remains of 

 the flower. June-Sept. Ontario to Florida, and westward. 

 Fig. 407. See Nos. 379, 380, 434, 445.^ 



408. Evening Primrose. Oenothera biennis. (Onagraceae.) 

 A stout herb, simple or branched, 1-6 ft. tall with alternate, 

 mostly lance-shaped leaves, 1-6 in. long, faintly and irregu- 

 larly toothed and essentially stalkless. Flowers in a terminal 



