You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allimages aicontinue="Bobmartinez.jpg" />
  </query-continue>
  <query>
    <allimages>
      <img name="BCbud.jpg" timestamp="2015-02-28T10:19:12Z" url="http://www.wikiweed.com/images/7/70/BCbud.jpg" descriptionurl="http://www.wikiweed.com/File:BCbud.jpg" ns="6" title="File:BCbud.jpg" />
      <img name="Balaclavaed_dea_agent.JPG" timestamp="2015-02-17T11:49:00Z" url="http://www.wikiweed.com/images/7/7e/Balaclavaed_dea_agent.JPG" descriptionurl="http://www.wikiweed.com/File:Balaclavaed_dea_agent.JPG" ns="6" title="File:Balaclavaed dea agent.JPG" />
      <img name="Balaclavaed_dea_agent.jpg" timestamp="2015-02-17T11:47:33Z" url="http://www.wikiweed.com/images/1/1e/Balaclavaed_dea_agent.jpg" descriptionurl="http://www.wikiweed.com/File:Balaclavaed_dea_agent.jpg" ns="6" title="File:Balaclavaed dea agent.jpg" />
      <img name="Balls_and_sticks_of_Charas.jpg" timestamp="2015-02-17T04:33:11Z" url="http://www.wikiweed.com/images/5/51/Balls_and_sticks_of_Charas.jpg" descriptionurl="http://www.wikiweed.com/File:Balls_and_sticks_of_Charas.jpg" ns="6" title="File:Balls and sticks of Charas.jpg" />
      <img name="Barry_McCaffrey.jpg" timestamp="2015-03-25T13:19:02Z" url="http://www.wikiweed.com/images/e/e5/Barry_McCaffrey.jpg" descriptionurl="http://www.wikiweed.com/File:Barry_McCaffrey.jpg" ns="6" title="File:Barry McCaffrey.jpg" />
      <img name="BigBearCanna-fb-banner.jpg" timestamp="2015-12-24T03:28:11Z" url="http://www.wikiweed.com/images/6/69/BigBearCanna-fb-banner.jpg" descriptionurl="http://www.wikiweed.com/File:BigBearCanna-fb-banner.jpg" ns="6" title="File:BigBearCanna-fb-banner.jpg" />
      <img name="Bill_clinton_-_Weed_Depot.jpeg" timestamp="2015-02-26T20:10:25Z" url="http://www.wikiweed.com/images/a/a0/Bill_clinton_-_Weed_Depot.jpeg" descriptionurl="http://www.wikiweed.com/File:Bill_clinton_-_Weed_Depot.jpeg" ns="6" title="File:Bill clinton - Weed Depot.jpeg" />
      <img name="Birmingham_peace_rally.jpg" timestamp="2015-02-23T10:32:43Z" url="http://www.wikiweed.com/images/b/bc/Birmingham_peace_rally.jpg" descriptionurl="http://www.wikiweed.com/File:Birmingham_peace_rally.jpg" ns="6" title="File:Birmingham peace rally.jpg" />
      <img name="Bluedream.jpg" timestamp="2015-03-03T10:46:35Z" url="http://www.wikiweed.com/images/4/46/Bluedream.jpg" descriptionurl="http://www.wikiweed.com/File:Bluedream.jpg" ns="6" title="File:Bluedream.jpg" />
      <img name="Bob_marley_-_Weed_Depot.jpg" timestamp="2015-02-25T22:30:25Z" url="http://www.wikiweed.com/images/a/ad/Bob_marley_-_Weed_Depot.jpg" descriptionurl="http://www.wikiweed.com/File:Bob_marley_-_Weed_Depot.jpg" ns="6" title="File:Bob marley - Weed Depot.jpg" />
    </allimages>
  </query>
</api>