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  1. More Images

    Sparganium natans

    Sparganium natans is a species of bur-reed known by the common names least bur-reed and small bur-reed. It is a water circumboreal plant inhabiting North America, Europe, West Asia and Japan. It is usually found submersed in shallow, calm water. This bur-reed has thin, flexible, grasslike leaves which float in the water. Plants that spend more time out of water at the waterline are tougher and have shorter leaves. The plant bears two inflorescences, the staminate type being a rounded white filamentous ball and the pistillate type a sphere of thick, green, pointy peduncles. The fruits are small green or brown achenes. Wikipedia

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  2. en.wikipedia.org

    Sparganium natans is a species of bur-reed known by the common names least bur-reed [1] and small bur-reed. [2] It is a water circumboreal plant inhabiting North America, Europe, West Asia and Japan. It is usually found submersed in shallow, calm water. This bur-reed has thin, flexible, grasslike leaves which float in the water.
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  4. Sparganium natans is widely distributed throughout the northern hemisphere including much of North America, Europe, and Asia (POWO 2022). The map in Figure 1 depicts the extent of the species in the United States and Canada. The USDA PLANTS Database (2022b) shows records of Sparganium natans in three New
  5. gobotany.nativeplanttrust.org

    Sparganium americanum: flowering stems with 4-10 or more staminate spikes, fruiting spikes 15-25 mm in diameter, and beak of achene 3-5 mm long (vs. S. natans, with flowering stems with 1 staminate spike, fruiting spikes 5-12 mm in diameter, and beak of achene 0.5-1.5 mm long). Sparganium fluctuans:
  6. rareplantfiles.cnps.org

    Species: Sparganium natans L., small bur-reed . Photo Source: CalPhotos 2021 . Photo Credits: Top left: Keir Morse. Top right: Dean Wm. Taylor. Bottom left and right: Sierra Pacific Industries. Used with permission. Status . Table 1 summarizes the current status of this species or subspecies/variety by various ranking
  7. powo.science.kew.org

    Sparganium natans L. First published in Sp. Pl.: 971 (1753) This species is accepted The native range of this species is Temp. Northern Hemisphere. It is a helophyte and grows primarily in the temperate biome. Taxonomy; Images; General information; Distribution; Synonyms; Classification ...
  8. 8 Sparganium natans + Pistillate heads, at least one of them, supra-axillary and peduncled; fruit beak less than 0.5 mm, or absent : 9 Sparganium hyperboreum : 8: Rachis usually branched; tepals borne at middle of fruit stipe : 7 Sparganium fluctuans + Rachis unbranched; tepals borne at or near base of fruit stipe. 9
  9. The leaves of Sparganium natans are thinner and more translucent than those of the similar S. hyperboreum, and they lack the yellowish cast of that species. Its distalmost pistillate head is not contiguous with the staminate head, as is sometimes the case in S. hyperboreum, and its beaked fruit also distinguishes it from that species. ...
  10. worldfloraonline.org

    Stems usually long and floating, varying to erect and 1-3 dm; lvs thin, flat, 2-7 mm wide, much elongate when floating; pistillate heads 1-3, axillary, sessile or the lowest rarely short-peduncled, 1 cm thick when ripe; tep narrowly spatulate, erose at the tip, reaching beyond the middle of the fr; achene sessile or nearly so, dull greenish or brownish, the body elliptic-obovoid, 3-4 ...

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