OXALIDACEi^—WOOD-SORREL 



FAMILY 



YELLOW WOOD-SORREL 



Oxalis stricta. ■ Oxalis cornicnldta, n > ar. slvicta - 



b^j ditc, ^^\iictr Cofnif. , but corr»^c_ rnorc eopr^mptx 

 Name from oxus, sour, in allusion to the taste of the 

 foliage. 



Annual or perennial by subterranean shoots. Natu- 

 ralized from Europe. Roadsides, fence corners, and waste 

 places. Everywhere. May-October. 



Root. — Fibrous, sending out underground stolons which 

 run to a considerable distance and throw up new plants. 



Stem. — Pale green, at first erect, leafy, branching, 

 finally spreading or prostrate, six to twelve inches high. 



Leaves. — Compound, of three heart-shaped leaflets meet- 

 ing at the point. 



Flowers. — Bright yellow, in a three to five-flowered, 

 loose cluster at the head of the stalk, open only in sun- 

 light, pif-r yt)lcw »h 0- ttf/cti 



Calyx. — Sepals five, lanceolate, persistent. 



Corolla. — Petals five, bright yellow, commonly reddish 

 at the base, spreading, longer than the sepals. 



Stamens. — Ten; filaments broad, somewhat united at 

 the base. 



Pistil. — Ovary five-celled; styles five. 



Fruit. — Capsule, five-celled, slender; seeds many. 



This is one of our most persistent bloomers. It 

 begins in May and never stops until late September; 



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