2l6 WEEDS OF THE FARM AND GARDEN 



one-sided, bracteolate; calyx segments lanceolate; co- 

 rolla blue ; nutlets rough granulate or tuberculate on the 

 back, the margins with a double row of slender prickles. 

 Abundant in waste places along roadsides from eastern 

 Canada and New England to Minnesota, Kansas and Brit- 

 ish Columbia. Weedy also in Europe, where it is a native. 



Western Stickseed (Lappula floribunda, (Lehm.) 

 Greene). A biennial or perennial from one to two feet 

 high ; leaves oblong to linear-lanceolate, pubescent ; flow- 

 ers in erect racemes, pale blue; nutlets keeled and with a 

 row of subulate prickles. Common in the Rocky Moun- 

 tains. Beggar's lice (L. virginiana, (L.) Greene) has 

 stems two to four feet high, with ovate-oblong or oval 

 stem leaves, petioled ; pedicels short, deflexed in fruit ; 

 nutlets curved by flattened barbed prickles. Common in 

 the North. 



Yellow Burweed, Fireweed or Yellow Tarweed (Am- 

 sinckia intermedia, F. and M.). A hispid, erect annual, 

 one to two feet high, with oblong, ovate to linear leaves, 

 lower sometimes lanceolate ; yellow flowers in a loose 

 spike or raceme; the bristles of the calyx whitish or 

 merely yellowish ; corolla tube slightly longer than the 

 narrow, linear calyx lobes; anthers oblong; nutlets not 

 half the length of the calyx lobes. In dry open grounds 

 in eastern California. 



Corn Gromwell, Puccoon (Lithospermum arvense, L.). 

 A small annual or winter annual with erect stems six 

 to twelve inches high, somewhat rough with minute 

 hairs ; leaves lanceolate or linear ; corolla funnel-form, 

 regular, white, five-lobed ; calyx five-parted; stamens in- 

 serted on the tube of the corolla ; style one ; fruit four- 

 seeded, like one-seeded nutlets. Found on sandy -banks 

 and roadsides. Naturalized from Europe. The perennial 

 hoary puccoon (L. canescens), softly pubescent, with 

 sessile, oblong, linear or linear-oblong leaves, yellow 

 flowers and white nutlets, is common from New England, 



