1. By: Josh Carlson 4-12-10 http://www.agf.gov.bc.ca/cropprot/weedg uid/images/11b.jpg

2.  310-320 genera  7500 species  Most common in tropical settings  Species that live in MN Grasslands, agricultural fields, forests

3.  Herbs, shrubs, stem succulents (thick water-filled stems); e.g., cactus or aloe  Leaves: alternate or opposite or whorled, simple or palmate, stipulate or estipulate,  Monoecious or dioecious  Flowers: imperfect, regular or naked  Sepals:0-8 (usually 5) Distinct and or connate

4.  Petals: 4-8 Distinct or basally connate  Stamens: 1- many Distinct or connate  Carpels: 3 Ovary superior with 1-20 locules  Fruit: schizocarpic capsule (rarely a drupe, pod, berry, or samara)

5.  Leaves: alternate  Fruit: capsule  Flowers: yellow  If broken both the stem and leaves secrete a milky fluid  Invasive Plant http://www.google.com/imgres?imgurl=http://www.em.ca /garden/native/Euphorbia_esula2.jpg&imgrefurl=http://e m.ca/garden/native/nat_Euphorbia%2520esula.html&h=75 2&w=500&sz=131&tbnid=_Bs8_orx1l- dSM:&tbnh=276&tbnw=183&prev=/images%3Fq%3Deuph orbia%2Besula&hl=en&usg=__JwxcdIfqqNPe7NDUzppkv4 V3-Ug=&ei=mjfDS- fjOdOonQe7xP24CA&sa=X&oi=image_result&resnum=1&c t=image&ved=0CAkQ9QEwAA

6.  Leaves: alternate below inflorescences and opposite near to it  Fruit: capsule  Flowers: white http://www.main.nc.us/graham/wildflowers/White/Flowering%20Spur ge%20(Euphorbia%20corollata)%20Spurge%20Family%201.jpg

7.  Walters, Dirk., Keil, David., Murrell, Zack. 2006. Vascular Plant Taxonomy. 5 th ed. U.S.: Kendall/Hunt. 423. Print.  http://www.team.ars.usda.gov/v2/leafyspurge.html. http://www.team.ars.usda.gov/v2/leafyspurge.html  http://www.missouriplants.com/Whitealt/Euphorbia_corollata_page.html. 2002 http://www.missouriplants.com/Whitealt/Euphorbia_corollata_page.html