90 URTICACEAE (NETTLE FAMILY) 
be grubbed out. When tillage is impracticable, close and per- 
sistent cutting will prevent seeding and starve the roots. 
FALSE NETTLE 
Boehméria cylindrica, Willd. 
Native. Perennial. Propagates by seeds. 
Time of bloom: July to September. 
Seed-time: September until cut off by frost. ; 
Range: Quebec and Ontario to Minnesota, southward to Florida 
and Kansas. 
Habitat: Moist soil; waste places. 
' 
Stems six inches to two feet or more in height, erect, round, 
smooth or sometimes slightly hairy, simple or with few branches. 
Fie. 51.— False Nettle (Boeh- 
meria cylindrica). X }. 
Introduced. Perennial. 
Leaves long ovate to lance-shaped, 
pointed, three-nerved, sharply toothed, 
much resembling those of the nettles 
but without stinging hairs; petioles 
long, slender, smooth. Flowers may 
be dicecious or the two kinds inter- 
mixed on the same plant, more often 
the latter, but in either case they are 
in densely crowded, elongated, axillary 
spikes, often leafy at the tips; the 
sterile ones very like those of the 
True Nettle, but the fertile ones having 
an urn-shaped persistent calyx en- 
closing the ovary, and later enfolding 
the ripened achenes. (Fig. 51.) 
Means of control the same as for 
common Nettles. As they are with- 
out stings, small areas may be readily 
hand-pulled. 
PATIENCE DOCK 
Rimex Patiéntia, L. 
Propagates by seeds. 
Time of bloom: June to August. 
Seed-time: July to September. 
