Apios tuberosa. Gronnd nut. 
A wild climbing bean, with milky juice and straight or slightly curved many-seeded 
pods, growing in low grounds, as far west as the Missouri River. It is eaten by 
all kinds of stock. The edible tubers, which furnish food for swine, are borne 
on underground shoots. 
Arachis hypogeea. Spanish peanut; Peanut; Ground nut; Goober; Earth nuf, 
(Fig. 4.) 
An annual herb, a native of Peru and Brazil, introduced very widely in cultivation 
throughout du Southern States. The peanutis hardy as far north as Maryland. 
requires 2 long season; and the Spanish peanut, which®matures in about three 
months. The pods of the latter are smaller, and the seeds fewer and smaller, 
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FIG. 5. —Buffalo pea (Astragalus adsurgens). FIG. 6.— Australi ltbush (A triplex l 
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than those of the edible variety. Peanut-vine hay is more nutritious than that 
of red clover. The yield of nuts ranges from 50 to 75 bushels to the acre. The | 
Spanish peanut is the one usually grown for forage. The vines are pulled when 
the pods are about half formed, and are converted into hay by a method similar 
to that used in the treatment of cowpeas. The nuts or beans are rich in oil and 
albuminoids. Peanut meal makes a richer stock food than cotton-seed me 
A valuable oil can be expressed from the seeds. 
Astragalus. Bufíalo pea; Rattle pod. (Fig. 5.) 
Herbaceous perennials, with pinnate leaves and usually conspicuous beg ie saws 
rs, the pods becoming inflated when ri This genus is one of which there 
about 100 American species distributed tlirónghont the United States, 1 
est number occurring in the prairis e and Rocky Mountain regions. 
