<><img src="attachments/dvbbs/2006-9/200692718252945875.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-9/200692718252945875.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></P>
<><STRONG><FONT color=#000000>山莴苣</FONT></STRONG> <FONT color=#226ddd><STRONG>Lactuca indica Linnaeus ,</STRONG></FONT><FONT color=#000000>菊科莴苣属植物<BR><FONT size=2><FONT color=#22dd6d> 一年生或二年生草本。茎直立,高80~150厘米,被柔毛,上部分枝。叶互生,长椭圆状披针形,长10~30厘米,宽1.5~5厘米,不裂,或边缘具齿裂或羽裂;上面绿色,下面白绿色,叶缘略带暗紫色;无柄,基部抱茎;茎上部的叶呈长披针形。头状花序顶生,排列成圆锥状;总苞下部膨大,苞片多列,呈覆瓦状排列;舌状花淡黄色,日中正开,傍晚闭合;雄蕊5;子房下位,花柱纤细,柱头2裂。瘦果卵形而扁,黑色,喙短,喙端有白色冠毛一层。花期8~9月。果期9~10月。生长于略边、荒野;我国南北各省均有分布。<BR></FONT><BR><BR><BR><BR></FONT></FONT></P>