Schoenoplectus pungens
| Common threesquare | |
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| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Monocots |
| (unranked): | Commelinids |
| Order: | Poales |
| Family: | Cyperaceae |
| Genus: | Schoenoplectus |
| Species: | S. pungens |
| Binomial name | |
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Schoenoplectus pungens (Vahl) Palla |
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| Synonyms | |
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Schoenoplectus pungens is a species of flowering plant in the sedge family known by the common names common threesquare,common three-square bulrush and sharp club-rush. It is a herbaceous emergent plant that is widespread across much of North and South America as well as Europe, New Zealand and Australia.
Schoenoplectus pungens is a long-lived perennial herb up to 1.5 m tall, found in open, sun-lit marshes and along the shores of lakes and ponds, in water up to 1 m deep. It is resistant to fire. The species is closely related to S. americanus, and many S. pungens specimens have long been misidentified as S. americanus.
The foliage is dark green, rough and dense. The flowers are blue. The seeds are brown.
Figure 11 from Deutschlands Flora in Abbildungen by Johann Georg Sturm, painter: Jacob Sturm
Schoenoplectus pungens
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