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Carex aquatilis var. dives Fen | NatureServe Biotics 2019
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Name: Carex aquatilis var. dives Fen Reference: NatureServe Biotics 2019 Description: Habitat is usually montane fens. The association is widespread and important in the Cascade Range and, like ~<i>Carex aquatilis</i> Wet Meadow (CEGL001802)$$, includes a heterogeneous mix of species that do not segregate in any meaningful way. Trees and shrubs are scarce, although many different species are present. The herb layer is astonishingly diverse with more than 120 species recorded, but most of these have relatively low constancy and reflect the patchy distribution of many different taxa. <i>Carex aquatilis var. dives</i> is the primary species, averaging 54% cover, and many stands occur as monotypic reed swamp with cover ranging from 5 to 99%. Some of these stands intergrade with ~<i>Carex utriculata</i> Wet Meadow (CEGL001562)$$ in seasonally flooded depressions. <i>Dodecatheon jeffreyi, Carex utriculata</i>, and <i>Hypericum anagalloides</i> are the only other species with constancy higher than 20%. Species with significant patches include <i>Caltha leptosepala ssp. howellii, Eleocharis quinqueflora, Equisetum fluviatile, Viola macloskeyi, Cicuta douglasii</i>, and <i>Agrostis humilis</i>. Stands may occur on old beaver terraces on seepage slopes and also in sag ponds on slopes prone to slumping. Carex aquatilis var. dives can intermix with forest ecotone or meadow taxa as long as enough soil moisture is present. Plants become progressively dwarfed as conditions become drier.  Accession Code: urn:lsid:vegbank.org:commConcept:30735-{279AD0E6-4E64-4492-BD91-8BAD743F2D64} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 10-Jun-2006 to: ongoing
	status: accepted Community's Parent: Carex aquatilis - Carex livida - Carex cusickii Alkaline Fen Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.686523 NatureServe Explorer   Code: CEGL001826   Translated: Sitka Sedge Fen   Scientific: Carex aquatilis var. dives Fen (convergence) and Synonyms: (similar) CEGL001826 (similar) Carex aquatilis var. dives Herbaceous Vegetation (similar) Carex aquatilis var. dives Herbaceous Vegetation