West Highland Flora

Least Bur-reed


Sparganium minimum

Older name: Sparganium natans

Sparganium minimum

Photo Carl Farmer
13 Jul 2003 Sligachan, Skye

Occasional in nutrient-rich lochs and pools

Leaves normally to 40 cm long and 6 mm wide.  Fruiting heads c 7-10 mm wide.

ID: Normally has 2-3 female heads below 1-2 male heads; if 2, the male heads are close together and appear as one.  Bract of lowest female head is about equal to length of inflorescence; not twice as long, as in Floating Bur-reed. (examine several)

Other features: Floating part of leaves not forming metre-long ribbons as in Floating Bur-reed, but quite limited in length as in picture on right below.  Flowerhead-sheaths loose but not notably inflated.  Stem leaves not expanded at base, and nowhere more than very shallowly triangular if at all.

 

Sparganium minimum

Photo Carl Farmer
13 Jul 2003 Sligachan, Skye

  Sparganium minimum

Photo Carl Farmer
13 Jul 2003 Sligachan, Skye
 

Male head beginning
to wither above two
female heads beginning
to fruit.
  Leaves of limited length, not long
trailing ribbons.

 

Sparganium minimum

Photo Carl Farmer
13 Jul 2003 Sligachan, Skye
 

Flowering female heads have males above them;
fruiting ones have males fallen off.


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