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Photographer: Matthew L. Wagner
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Family Sparganiaceae
Sparganium eurycarpum Engelm.
broad-fruit bur-reed, common bur-reed, giant bur-reed
Sparganium: ancient name, probably sparganon for "a band," referring to ribbon-like leaves
eurycarpum: broad-fruited
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| Status: | Native |
| Plant: | erect, perennial, emergent semi-aquatic, 1'-3 1/2' tall; stems stout, spongy, flattened V-shape in cross section; roots a shallow, spreading rhizomes |
| Flower: | female flower green to white, 3-parted; inflorescence 3/4" round heads on branched, zigzagging stalk, upper heads male and smaller than the lower female heads; blooms June-July |
| Fruit: | brown, wide, flat-topped, beaked nutlets  in large, 1" wide, bur-like heads |
| Leaf: | barely dilated at the base, ribbony, some floating or submersed; veins forming a net-like grid |
| Habitat: | sun; wet; ditches, shallows, marshes, shores; in muddy soil |
| (Glossary) |
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