Carex riparia

Source: Wikipedia, the free encyclopedia.

Carex riparia
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Cyperaceae
Genus: Carex
Subgenus: Carex subg. Carex
Section: Carex sect. Paludosae
Species:
C. riparia
Binomial name
Carex riparia
Curtis, 1783

Carex riparia, the greater pond sedge, is a species of sedge found across Europe and Asia. It grows in a variety of wet habitats, and can be a dominant species in some swamps. It is Britain's largest Carex, growing up to 130 cm (4 ft 3 in) tall, with glaucous leaves up to 160 cm (5 ft 3 in) long. It hybridises with a number of other Carex species, including the closely related Carex acutiformis – the lesser pond sedge. A variegated cultivar is grown as an ornamental grass.

Distribution and habitat

Carex riparia has a broad

tall-herb fens, alongside Carex acutiformis, Carex acuta and other similar species.[3]

Description

Ripe utricles

Carex riparia was

spikes, which grow close together at the top of the culm.[3]

The

utricles, 5–8 mm (0.2–0.3 in) long, with an inflated ovoid shape. They taper to a distinct, bifid beak, which bears three stigmas.[3]

Carex riparia is known to hybridise with a number of other sedge species, including Carex acutiformis (forming Carex × sooi), C. lasiocarpa (forming C. × evoluta), C. rostrata (forming C. × beckmanniana), C. vesicaria (forming C. × csomadensis), C. elata and C. flacca.[3]

Horticulture

Carex riparia, particularly the cultivar 'Variegata', is used as an ornamental grass in gardens with wet soils.[5]

Notes

  1. ^ Many North American sources erroneously attribute the species to M. A. Curtis.

References

  1. ^ a b "Carex riparia". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved May 11, 2011.
  2. .
  3. ^ .
  4. ^ Chisholm, Hugh, ed. (1911). "Cyperaceae" . Encyclopædia Britannica. Vol. 07 (11th ed.). Cambridge University Press.
  5. .

External links