Description of Native Vines 



83. White Clover. (Trifolium repens.) 



Leaf : trifoliate ; leaflets, obovate, apex deeply or slightly 

 notched, slightly serrate; leaf- and flower- stems very long. 

 Flower : white (corolla much longer than calyx), in small loose 

 "heads" ; trailing, herbaceous. 



84. Halberd-leaved Tearthumb. (Polygonum arifolium.) 



Leaf : 2'-4', simple, alternate, entire, halberd-shaped ; plant- 

 stem 4-angled and grooved, edges covered with reversed fine 

 prickles. Flower : white or rosy (no corolla, colored calyx 4-5- 

 lobed, stamens 6), few-clustered ; June-September ; weak, her- 

 baceous, climbing by prickly stems ; in damp ground. (PI. VIL) 



85. Arrow-leaved Tearthumb. (Polygonum sag^ttatum.) 



Leaf: 1-3', simple, alternate, entire, arrow-shaped; plant- 

 stem 4-angled, edges covered with reversed fine prickles for 

 climbing. Flower : as in 84 ; in damp ground. (PI. VIIL) 



86. Hop. (Humulus lupulus.) 



Leaf : 2'-4', simple, opposite, serrate, 3-7-lobed, roundish, 

 base cordate, rough above. Flower : greenish, small, staminate 

 and pistillate, clustered ; June-August ; herbaceous, climbing, 

 stems very rough-bristly, with reversed bristles or fine prickles. 

 (PI. VIII.) 



87. Bedstraw. Cleavers. (Galium aparine.) 



Leaf : 1-2', simple, 6-8-whorled, entire, very narrow, base 

 tapering, apex sharp, midrib and edge rough. Flower : white, 

 small (corolla 4-parted, stamens 4), in small clusters ; June ; fruit 

 prickly ; eastward ; stem weak, 4-angled, edges covered with 

 fine reversed prickles for climbing. (PI. VIIL) 



88. Rough Bedstraw. Rough Cleavers. (Galium asprel- 



lum.) 



Leaf : %'-%', simple, 4-6-whorled, entire, narrow, base and 



apex tapering, midrib and edge prickly ; flower as in 87 ; fruit 



small and smooth ; northward ; stem rough-bristly. (PI. VIII.) 



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