YELLOW OR YELLOWISH FLOWERS 
GROUP XIV 
Leaves alternate. Flowers with four petals. 
Evening Primrose (CEnothera biennis) . Evening Primrose 
family. Summer, autumn. 
A stout, somewhat hairy, familiar plant, biennial, two to 
several, even eight or nine, feet high, bearing flowers an inch 
or two broad. The calyx is long, and ends in four pointed lobes; 
petals four. Leaves lance-shaped, pointed, lowest with stalks. 
Common in fields and roadsides. There are many species in 
the genus. The color is all this primrose has in common with 
that of England, of which Chaucer wrote — 
" The primrose paths of dalliance tread." 
Small Sundrops (CEnothera pumila). Evening Primrose 
family. May to July. 
An erect biennial with slender stem generally under a 
foot high. Flowers less than one-half inch across, one or few 
near the top, with four broad petals, notched. Leaves small, 
narrowly oblong, narrowed at the base. Common in dry 
ground. The pods are club-shaped, hairy. 
Yellow Rocket (Barbarea vulgaris). Mustard family. 
April, May. 
An upright perennial with angled stem, a foot or two high. 
The flowers, in terminal racemes, are small (one-fourth to one- 
third of an inch), bright yellow; the pods are long, curved, and 
spreading. The lower leaves, sometimes five inches long, with 
stalks, are pinnately cut, with a' large, rounded terminal lobe 
and several pairs of smaU lateral ones; the upper leaves are 
without stalks. Common by the roadside and in waste places. 
Erect-fruited Wintercress (Barbarea stricta) is similar but with 
pods erect and pressed against the stem. Named in honor of St. 
Barbara.' 
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