PULSE FAMILY. Legutninosas. 



This species has similar flowers, but 

 they are considerably larger and borne 

 on a slender stalk which rises from the 

 plant-stem at the point where the leaf- 

 stalks spring outward. The broad, 

 pointed leaflets are much larger and a 

 The strange seed-pod like that of the fore- 

 going species is 2-3 jointed. The name is from Sed/^oS 

 a chain, alluding to the connecting joints of the pod. 

 By means of these joints the pods attach to the furry 

 coats of animals. 1-4 feet high. The same distribution. 

 The stem of this silky hairy tick trefoil 

 bends or lies near the ground. The leaflets 

 are quite round, comparatively speaking, 

 soft-hairy, and not pointed. The flowers 

 are light purple-magenta, and the pod 

 3-5 jointed, constricted nearly equally at 

 2-5 feet long. About the same distribution. 

 This species has oblong lance-shaped 

 leaflets, or quite ovate ones, nearly if not 

 quite smooth above, an erect and nearly 

 smooth stem, and branching flower-stalks 

 bearing very small pale magenta flowers. 

 Pod 2-4 jointed, the sections nearly triangular. 2-3 feet 

 high. Not farther south than Va. and Ky. , west to Neb. 

 A still narrower-leaved species, the deep 

 green leaflets scarcely 2 inches long, and 

 linear lance-shaped, resembling willow 

 leaves. The flow^er-spikes are rather hori- 

 zontally branched ; Pale magenta flowers 

 Pod 4-6 jointed. The slender stem 2-3 feet 

 high. Common. 



The most showy species of the genus, 

 with crowded flower-clusters terminating 

 a tall, stout, and hairv stem. The leaves 



Desniodium, 

 ticuviinatinn 

 Pale magenta 

 June- 

 September 



trifle hairy. 



Desmodium 

 rotundifolium 

 Purple- 

 magenta 

 July- 

 September 



both edges. 



y^T Desmodium 

 ^^ DiUenJi 



Pale magenta 

 June- 

 September 



Desmodium 

 pnniridatum 

 Pale magenta 

 July- 

 September 



very small. 



Canadian Tick 

 Trefoil 



D€sm,odiiini 



Canndense are nearly without stalks, or with short 



Dull magenta- ones, and the three leaflets (longer-stalked) 

 P'"'^ are oblong lance-shaped. The flowers 



September (larger than those of the other species) are 

 nearly i inch long, and vary in color from 

 magenta to magenta-pink. Pods 3-5 jointed and quite 



2l8 



