A GUIDE TO THE WILD FLOWERS 199 



leaflets, especially the middle one, distinctly stalked. It is 

 found from Nova Scotia to Georgia, and westward. 



604. White Clover. Trifolium repens. A prostrate, creeping- 

 clover, very common in lawns. Leaflets roundish or oval, 

 slightly but shallowly notched at the tip, about Yi in. long. 

 Flower clusters solitary on long stalks, usually overtopping 

 the leaves, white. Throughout North America. May-Novem- 

 ber. 



605. Old-field Clover. Trifolium arvense. An erect clover, 

 6-18 in. high. Leaflets linear or linear-oblong, ^-i in. long, 

 wedge-shaped at the base, stalkless and smooth. Flower clus- 

 ters whitish, oblong, terminal, the stalk scarcely exceeding 

 the cluster. Quebec and Ontario to Florida, and westward. 

 May-Sept. Fig. 605. 



606. Red Clover. Trifolium pratense. Resembling No. 605, 

 but the flower clusters essentially stalkless, almost globe-like, 

 and the flowers red. The leaflets are also hairy on the mar- 

 gins. One of the commonest clovers, nearly throughout North 

 America, and much cultivated for fodder. May-October. 



607. Alsike Clover. Trifolium hybridum. A stout, usually 

 branched herb, 1-2 ft. high. Leaflets smooth, oval, or round- 

 ish, about }i in. long, wedge-shaped at the base. Flowers 

 pink, the cluster rather loose, its stalk many times exceeding 

 the cluster in length. Nearly throughout North America. 

 May-October. Fig. 607. 



608. Terminal leaflet distinctly longer stalked than the two 

 side ones. (Pea Family concluded.) 



Flowers yellow Pencil-flower no. 609 



Flowers purple, blue or white. 



Pods conspicuously several-jointed Tick-trefoil no. 610 



Pods inconspicuously i or 2-jointed Bush-clover no. 617 



609. Pencil-flower. Stylosayithcs biflora. A wiry branched, 

 often hairy, and usually half prostrate herb, 6-20 in. long. 

 Leaflets 3, the terminal one stalked, the side ones stalkless, 

 narrowly oblong, sharp pointed at the tip, 3^-ij4 i"- ^o"&- 

 Flowers few, yellow, about j4 i»- ^ong, in sparse terminal 



