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Scientific Name
Carex laxiculmis var. copulata
Scientific Name w/ Auth.
Carex laxiculmis var. copulata (L.H. Bailey) Fernald
Park
Chesapeake and Ohio Canal National Historical Park (CHOH)
Sensitive
No
Park Accepted
Accepted
Record Status
Approved
Park Preferred Common Names
coupled sedge
Park Synonyms
Taxonomic Hierarchy
| Kingdom | Plantae |
| Subkingdom | Viridiplantae |
| Infrakingdom | Streptophyta |
| Superdivision | Embryophyta |
| Division | Tracheophyta |
| Subdivision | Spermatophytina |
| Class | Magnoliopsida |
| Superorder | Lilianae |
| Order | Poales |
| Family | Cyperaceae |
| Genus | Carex |
| Species | Carex laxiculmis |
| Variety | Carex laxiculmis var. copulata |
Occurrence
Present
Occurrence Notes
Data Source: Lea, 2000
Nativeness
Native
Nativeness Notes
Data Source: Helen Hamilton
Abundance
Rare
Abundance Notes
Data Source: Lea, 2000
Management Tags
-
Management Priority
Lea, 2000: Noted as rare;
Threatened Endangered Status
State Species of Concern statuses
Ozone Sensitive Status
NatureServe GRank
NatureServe SRank
Observations
0
References
Vouchers
0
External Links
0
Evidence counts shown include evidence for related synonyms.
Created By
Helen Hamilton
Created Date
6/19/2007 12:00:00 AM
Last Modified By
Helen Hamilton
Last Modified Date
7/13/2007 12:00:00 AM
Notes
Park Species Detail: Lea, 2000: Carex laxiculmis Schweinitz var. copulata (Bailey) Fernald (Coupled Sedge)Rare. In rich mesophytic forests on alluvial terraces. Found at Turkey Run Park and Bear Island. This somewhat obscure taxon appears morphologically intermediate between typical C. laxiculmis and C. digitalis, with pistillate spikes as in the former and leaf width and color as in the latter. Fernald (1950) considered it to be a hybrid between those two species, a view not shared by Mackenzie (1931), nor supported by [limited] systematic research (Manhart, 1986). Rhoads and Klein (1993) consider it a calciphile; its habitat here and that given for specimens at GMUF from other Virginia locations support this evaluation. This is the first record of C. laxiculmis var. copulata for the Potomac Gorge, for Montgomery County, and for Maryland. Late April to early June. 1942,1945 (US); I463 (GMUF); 1946 (MICH); 1376,1921 (Tawes)., Park Species Data Source: Lea, 2000;
