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- Carex emoryi
Carex emoryi — Emory's sedge
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New England distribution
Adapted from BONAP data
Native: indigenous.
Non-native: introduced (intentionally or unintentionally); has become naturalized.
County documented: documented to exist in the county by evidence (herbarium specimen, photograph). Also covers those considered historical (not seen in 20 years).
State documented: documented to exist in the state, but not documented to a county within the state. Also covers those considered historical (not seen in 20 years).
Note: when native and non-native populations both exist in a county, only native status is shown on the map.
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Facts
Emory's sedge resembles water sedge (Carex aquatilis), but is much rarer, occuring only in Connecticut and Massachusetts. Emory's sedge has finely veined perigynia and a prolonged convex sheath apex.
Habitat
Marshes, shores of rivers or lakes
Characteristics
- Habitat
-
- terrestrial
- wetlands
- New England state
-
- Connecticut
- Massachusetts
- Leaf blade width
- 3–6 mm
- Lowest bract sheath
- the lowest bract has no sheath (or a very short sheath up to four millimeters in length)
- Spike on stalk
-
- the lowest spike on the plant has a peduncle
- the lowest spike on the plant is not borne on a peduncle
- Top spike
- the uppermost spike contains only staminate flowers
- Perigynium hairs
- the perigynium has no hairs
- Perigynium length
- 1.7–3.2 mm
- Leaf sheath color
- the leaf sheath is tinted pink, red or purple
- Leaf blade texture
- the leaf blade is smooth and hairless, or rough and sandpapery
- Perigynium beak teeth
- the perigynium beak is divided at the top into two teeth
-
Flowers
- Bumps on fruit
- the perigynium surface has papillae on it
- Length of scale
- the scale is nearly as long as, or longer than, the perigynium
- Lowest spike length
- 25–100 mm
- Lowest spike stalk length
- At least 0 mm
- Lowest spike width
- 3–5 mm
- Perigynium beak
- the perigynium has a beak
- Perigynium beak length
- 0.1–0.3 mm
- Perigynium beak orientation
- the beak of the perigynium is straight, and in line with the perigynium
- Perigynium beak serrations
- the perigynium beak has no serrations
- Perigynium beak teeth
- the perigynium beak is divided at the top into two teeth
- Perigynium beak teeth length
- 0 mm
- Perigynium color
- tan
- Perigynium cross-section
-
- the perigynium is planoconvex (flat on one surface and rounded on the other) in cross-section
- the perigynium is relatively flat in cross-section
- Perigynium hairs
- the perigynium has no hairs
- Perigynium length
- 1.7–3.2 mm
- Perigynium nerve number
- 6–10
- Perigynium nerve texture
- the nerves on the perigynium are raised, even after drying the perigynium
- Perigynium nerves lower side
- 3–5
- Perigynium nerves upper side
- 3–5
- Perigynium orientation
- the perigynia are oriented vertically or pressed against the axis or adjacent perigynia
- Perigynium puffy
- the achene is tightly enclosed by the perigynium
- Perigynium shape
- the perigynium body is elliptic (widest near the middle and tapering at both ends)
- Perigynium width
- 1–2.1 mm
- Perigynium winged
- the perigynium has no wings
- Pollen- and seed-producing spikes
- some of the spikes produce perigynia
- Pollen-producing spike length
- 15–50 mm
- Pollen-producing spike number
- 2–3
- Scale awn
- The carpellate scale does not have an awn (it may have a short point)
- Scale awn texture
- NA
- Scale color
-
- brown
- red-brown
- Scale tip
- the carpellate scale tip is acute (has a sharp point)
- Spike on stalk
-
- the lowest spike on the plant has a peduncle
- the lowest spike on the plant is not borne on a peduncle
- Spike orientation
- the spikes are oriented vertically or pressed against the axis
- Spikes per stem
- 2-15
- Stigma branching
- the stigmas have two branches
- Top spike
- the uppermost spike contains only staminate flowers
-
Fruits or seeds
- Achene dimples
- the achene has no folds or dimples
- Style persistence
- the style falls off the mature achenes
-
Growth form
- Rhizomes
-
- there are long rhizomes present
- there are no rhizomes, or the rhizomes are very short
-
Leaves
- Leaf arrangement
- the leaves are mostly produced higher up on the plant
- Leaf blade texture
- the leaf blade is smooth and hairless, or rough and sandpapery
- Leaf blade width
- 3–6 mm
- Leaf bumps
- the upper surface of the leaf blade does not have papillae
- Leaf sheath bumps
- there are no papillae at the top edge of the leaf sheath
- Leaf sheath color
- the leaf sheath is tinted pink, red or purple
- Leaf sheath dots
- there are no dots on the leaf sheathes
- Leaf sheath folds
- there are no corrugations on the leaf sheath
- Leaf sheath texture
- the leaf sheath feels smooth, and has no hairs
- Lowest bract sheath
- the lowest bract has no sheath (or a very short sheath up to four millimeters in length)
- Lowest leaf blade width
- 3–6 mm
- Lowest leaf sheath texture
- the leaf sheath feels smooth (it may have soft hairs)
-
Place
- Habitat
-
- terrestrial
- wetlands
- New England state
-
- Connecticut
- Massachusetts
- Specific habitat
-
- marshes
- shores of rivers or lakes
-
Stem, shoot, branch
- Plant height
- 30–115 cm
- Relative stem height
-
- the main stem is equal to or shorter than the leaves
- the main stem is taller than the leaves
- Stem cross-section
- the main stem is roughly triangular in cross-section
- Stem spacing
- the stems grow singly or a few together (they may form diffuse colonies)
Wetland status
Occurs only in wetlands. (Wetland indicator code: OBL)
New England distribution and conservation status
Distribution
- Connecticut
- present
- Maine
- absent
- Massachusetts
- present
- New Hampshire
- absent
- Rhode Island
- absent
- Vermont
- absent
Conservation status
Exact status definitions can vary from state to state. For details, please check with your state.
- Massachusetts
- extremely rare (S-rank: S1), #NAME? (code: #NAME?)
Native to North America?
Yes
Sometimes confused with
Synonyms
- Carex millegrana T. Holm
- Carex stricta Lam. var. elongata (Boeckl.) Gleason
- Carex stricta Lam. var. emoryi (Dewey) Bailey
Family
Genus
From the dichotomous key of Flora Novae Angliae
133. Carex emoryi Dewey N
Emory’s sedge. Carex millegrana T. Holm; C. stricta Lam. var. elongata (Boeckl.) Gleason; C. stricta Lam. var. emoryi (Dewey) Bailey • CT, MA. Marshes and stream shores.