| Description | An escaped plant that has become a noxious weed. |
|---|---|
| Plant Type | All Plants, Weeds |
| Sunlight | average |
| Moisture | average to dry |
| Soil & Site | average to dry |
| Flowers | yellow, 5-12 ray flowers, disc flowers absent, emerge from a narrow bud, |
| Fruit | seeds in form of a achene with pappus for floating and distribution |
| Leaves | alternate, simple, bluish-green, clasp stem, deep lobes often prickly, mid-vein on underside is prickly |
| Stems | hollow, becoming woody-like |
| Roots | deep tap root |
| Dimensions | I have seen these over three feet tall |
| Propagation | propagates by seeds |
| Native Site | Native to Eurasia to the Himalayas. Has escaped and become a noxious weed. |
| Misc Facts | Cattle can develop pulmonary emphysema from eating to much of this plant. The common name compass plant comes from fact that the leaves often point east and west. Lactuca means milk, serriola refers to ranks.(syn. L. scariola) |
| Notes & Reference | #19-Common Weeds ( USDA Agricultural Research Service), #81-Weeds of Northern US and Canada (Royer and Dickinson), #100-Wildflowers of Wisconsin and the Upper Midwest (Merel Black and Emmet Judziewicz) |
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