RUBUS VILLOSUS
\ɹˈuːbəs vˈɪlɒsəs], \ɹˈuːbəs vˈɪlɒsəs], \ɹ_ˈuː_b_ə_s v_ˈɪ_l_ɒ_s_ə_s]\
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Common (or high) blackberry of North America, of which there are two varieties, R. frondosus, in which the fruit is more acid, and a procumbent or trailing variety R. humifusus, which is not easily distinguished from the R. trivialis of Pursh. The root is covered with a thin, brownish bark, which constitutes in part the r. of the U. S. Ph. The bark of the root, the leaves, and the flowers are astringent. [Lat.]
By Smith Ely Jelliffe
