BugwoodWiki Article

branched burreed
Sparganium erectum L.

Overview

Appearance
Sparganium erectum is a perennial wetland or aquatic herbaceous plant that is native to North America. It grows from slender rhizomes with slender terete stems. S. erectum grows from 3-8 ft. (0.9-2.4 m) tall. It is found around the world and is listed as native to North America, Africa, temperate Asia and Europe.
Foliage
The long flat leaves are alternate. They are often slightly keeled. The leaves may be either floating or held above the water.
Flowers
The inflorescence is branched. Each inflorescence has from 5-13 staminate heads and 2-4 pistillate heads. Pistillate heads are sessile.
Fruit
Fruits are obovoid sessile nutlets. Fruits have a truncated top with a small style at the tip.
Ecological Threat
Sparganium erectumis a federally listed noxious weed. It can be found in California and other states, as well as Canada. S. erectum is listed as introduced to Australia.

Image Sets
View other image sets:

Maps


State Invasive List - This map identifies those states that list this species on their invasive species list. For more information, visit Invasive.org

State Invasives List

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Liliopsida
Subclass: Commelinidae
Order: Typhales
Family: Sparganiaceae
Genus: Sparganium

Other System Links

Plants: SPER
Bayer: SPGER
GRIN: 316417
ITIS: 505301
NPDN Pest: PEXABBF

Synonyms and Other Names

Other Common Names:
exotic bur-reed, branched burreed,simple-stem burr-reed, simplestem bur-reed

Categories

Category: Aquatic
Category: Forbs/Herbs