[Bur-reeds: The Genus Sparganium in Mt. Adams Country]

Emergent Bur-reed, Simplestem Bur-reed

Sparganium emersum

Synonyms: Sparganium angustifolium ssp. emersum, Sparganium chlorocarpum, Sparganium chlorocarpum var. acaule, Sparganium emersum ssp. acaule, Sparganium emersum ssp. emersum, Sparganium emersum var. emersum, Sparganium simplex, Sparganium simplex var. simplex

Close-up of the male and female flower heads of Simplestem Bur-reed, Simple-stem Bur-reed: Sparganium emersum (Synonyms: Sparganium angustifolium ssp. emersum, Sparganium chlorocarpum, Sparganium chlorocarpum var. acaule, Sparganium emersum ssp. acaule, Sparganium emersum ssp. emersum, Sparganium emersum var. emersum, Sparganium simplex, Sparganium simplex var. simplex)

The photo above shows emergent bur-reed as seen in a drying pond at the fishing area along Lakeside Road at the east end of Conboy Lake National Wildlife Refuge.........July 31, 2008. The three lower flowering heads are female while the smaller whitish ones higher on the stem are male. Note also the base of the stem leaves which are Y-shaped in cross-section. Broad-fruited bur-reed is also found at this site but it is 3-5 times taller than emergent bur-reed.

Emergent Bur-reed, Simplestem Bur-reed, Simple-stem Bur-reed: Sparganium emersum (Synonyms: Sparganium angustifolium ssp. emersum, Sparganium chlorocarpum, Sparganium chlorocarpum var. acaule, Sparganium emersum ssp. acaule, Sparganium emersum ssp. emersum, Sparganium emersum var. emersum, Sparganium simplex, Sparganium simplex var. simplex)

The photo above shows a close-up of emergent bur-reed as seen in the ditch alongside Laurel Road in Conboy Lake NWR.........August 11, 2008.

Emergent Bur-reed, Simplestem Bur-reed, Simple-stem Bur-reed: Sparganium emersum (Synonyms: Sparganium angustifolium ssp. emersum, Sparganium chlorocarpum, Sparganium chlorocarpum var. acaule, Sparganium emersum ssp. acaule, Sparganium emersum ssp. emersum, Sparganium emersum var. emersum, Sparganium simplex, Sparganium simplex var. simplex)

The photo above shows emergent bur-reed as seen in a drying pond at the fishing area along Lakeside Road at the east end of Conboy Lake National Wildlife Refuge........July 31, 2008. The two lower flowering heads are female while the yellowish ones higher on the stem are male. Note also the base of the stem leaves which are Y-shaped in cross-section.

Close-up of the male (upper) and female (lower) flower heads of Emergent Bur-reed, Simplestem Bur-reed, Simple-stem Bur-reed: Sparganium emersum (Synonyms: Sparganium angustifolium ssp. emersum, Sparganium chlorocarpum, Sparganium chlorocarpum var. acaule, Sparganium emersum ssp. acaule, Sparganium emersum ssp. emersum, Sparganium emersum var. emersum, Sparganium simplex, Sparganium simplex var. simplex)

The photo above shows an indication of the size of female and male flowering heads and leaves of emergent bur-reed as seen in a drying pond at the fishing area along Lakeside Road at the east end of Conboy Lake National Wildlife Refuge........July 31, 2008.

Paul Slichter