212 ROSACEAE (ROSE FAMILY) 
branches, six inches to a foot high, all armed with sharp prickles. 
Leaves pinnately compound, with three to seven long-ovate or 
rhombic leaflets, on very slender and often prickly petioles, rather 
thin, prominently veined, finely double-toothed, dark green, 
taking on a gorgeous red coloring in autumn. Flowers in terminal 
clusters, or occasionally solitary, about an inch broad, with five- 
parted calyx and five obovate, white petals; stamens many; 
pistils many, closely set on a succulent “core” or torus which 
elongates as they mature, each becoming a small pulpy drupelet, 
containing one achene. ‘These drupelets cohere and form the 
fruit, black, sweet, juicy, often an inch long, dropping readily 
from the stems when ripe. (Fig. 153.) 
Means of control 
The vines should be cut close to the ground, or, better, spudded 
off below thé surface, before the fruit is formed, and then piled and 
burned. A handful of salt or a little kerosene on the cut surfaces is 
discouraging to new growth. 
TALL HAIRY AGRIMONY 
Agriménia gryposépala, Wallr. 
(Agriménia hirsita, Bicknell) 
Native. Perennial. Propagates by seeds. 
Time of bloom: June to August. 
Seed-time: August to October. . 
Range: Nova Scotia and Maine to Minnesota, southward to North 
Carolina. Also on the Pacific Coast. 
Habitat: Woodland borders, thickets along streams. 
One of the many “stickseed”’ plants that vex the wool-grower, 
and rather common in the rocky brush-lot pastures usually given 
over to sheep. Stem two to four feet tall, slender, and covered 
with fine, spreading hairs. Roots fibrous and clustered. Leaves 
deep green, pinnatifid, mostly with seven — sometimes five or nine 
— large, coarsely toothed, oblong to obovate leaflets, and three 
pairs of smaller ones interposed between them; petioles hairy, 
with large, coarsely toothed stipules at the base. Flowers in long, 
slender, spicate racemes, the rachis glandular-hairy, interspersed 
