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2n chromosome quantity
68 +  and 66 +
Abaxial suture coloration
yellow-green +  and copper-brown +
Achene shape
broadly ovate;oblong +
Achene size
smaller +
Achene some measurement
2.8mm;4mm +
Achene thickness
0.5mm +  and 0.7mm +
Anther atypical some measurement
0.18 cm1.8 mm <br />0.0018 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
Anther fixation
basifixed +
Anther some measurement
0.22 cm2.2 mm <br />0.0022 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
Apex architecture
bidentatate +
Apex architecture or pubescence or relief
, +  and smooth +
Apex growth form or texture
herbaceous +
Apex relief
papillose +
Apex shape
inrolled obtuse;acute +
Apex texture
firm +
Apiculu height or length or size
short +
Apiculum some measurement
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
Author
Joy Mastrogiuseppe +, Paul E. Rothrock +, A. C. Dibble +  and A. A. Reznicek +
Authority
(F. J. Hermann) P. E. Rothrock & Reznicek +
Band coloration
brown tinged +  and hyaline +
Basal sheath texture
fibrous +
Base duration
persistent +
Base shape
rounded +  and tapered +
Base size
not enlarged +
Base variability
equaling +
Basionyms
Carex bicknellii var. opaca +
Beak architecture
serrulate-margined +
Beak atypical some measurement
0.21 cm2.1 mm <br />0.0021 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
Beak coloration
Golden brown (?) +  and Pale (?) +
Beak shape
flattened +
Beak some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
Blade length
3.5 cm35 mm <br />0.035 m <br /> (40 cm400 mm <br />0.4 m <br />) +
Blade presence
absent +
Blade prominence or shape
flat +
Blade quantity
3 +  and 6 +
Blade shape
v--shaped +
Blade width
0.15 cm1.5 mm <br />0.0015 m <br /> (0.46 cm4.6 mm <br />0.0046 m <br />) +
Bract architecture
glumaceous +  and foliaceous +
Bract architecture or shape
leaflike +
Bract arrangement
2-ranked +  and arranged +
Bract orientation
ascending +  and appressed +
Bract quantity
1;many +
Bract shape
scale-like +  and leaflike +
Branch atypical quantity
3 (4) +
Branch quantity
2;3 +
Bristle atypical quantity
6;30 +
Bristle quantity
3;6 +
Bristle tip some measurement
0 cm0 mm <br />0 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Cauline leaf architecture or shape
folded +
Cauline leaf arrangement
parallel +  and divergent +
Cauline leaf arrangement or course or shape
linear +
Cauline leaf orientation
Ascending (?) +
Cauline leaf prominence or shape
flat +
Cauline leaf shape
terete +, rolled +  and plicate +
Clump life cycle
old +
Cross-section architecture or pubescence or relief
smooth +
Cross-section relief
papillose +
Culm arrangement
3-ranked +
Culm coloration
brown +
Culm prominence
inconspicuous +
Culm quantity
0 (12) +
Culm reproduction
fertile +  and vegetative +
Culm shape
round +  and trigonous +
Culm some measurement
50 cm500 mm <br />0.5 m <br /> (115 cm1,150 mm <br />1.15 m <br />) +
Distal ligule some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.54 cm5.4 mm <br />0.0054 m <br />) +
Distal scale architecture
empty +
Distribution
Ark. +, Ill. +, Kans. +, Miss. +, Mo. +  and Okla. +
Elevation
50–400 m +
Embryo position
basal +
Endosperm quantity
abundant +
Flower architecture
open +, pistillate +  and staminate +
Flower position
hypogynous +  and subtending +
Flower quantity
single +
Flower reproduction
unisexual +
Fruits achene shape
biconvex +  and trigonous +
Habitat
Low areas in prairies, roadside ditches, poorly drained sites +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
Susan A. Reznicek +
Inflorescence architecture
open +
Inflorescence arrangement
racemose +
Inflorescence atypical length
5.5 cm55 mm <br />0.055 m <br /> (6.4 cm64 mm <br />0.064 m <br />) +
Inflorescence coloration
golden brown +  and pale +
Inflorescence l w ratio
1-1.5 +
Inflorescence length
2.4 cm24 mm <br />0.024 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
Inflorescence orientation
erect +  and slightly arching +
Inflorescence position or structure subtype
terminal +
Inflorescence width
0.65 cm6.5 mm <br />0.0065 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
Inflorescences panicle architecture
pseudoumbel +
Inflorescences panicle development
modified +
Internode some measurement
0.3 cm3 mm <br />0.003 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Lateral spike architecture
not prophyllate +, sessile +  and pistillate +
Lateral spike reproduction
gynecandrous +
Leaf arrangement
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
Leaf position
basal +  and cauline +
Ligule presence
absent +
Locule quantity
1 +
Margin architecture
winged +
Margin architecture or pubescence or relief
smooth +
Margin architecture or shape
entire +
Margin coloration
paler +  and hyaline +
Margin fusion
fused +
Margin prominence or shape
flat +
Margin shape
ridged +
Margin width
0.6mm +  and 1.3mm +
Midstripe coloration
yellow-green +  and brown +
Midvein fusion
distinct +
Number of lower taxa
0 +
Panicle arrangement
arranged +
Perianth life cycle
falling +
Perianth presence
absent +
Perianth quantity
with (1-)3-6(-30) bristles and/or scales +
Pericarp width
thin +
Perigynium architecture
8-12-veined +  and 3-7-veined +
Perigynium coloration
yellowish green +  and brown +
Perigynium fixation or orientation
appressed +
Perigynium orientation
erect +  and spreading +
Perigynium quantity
2 (5) +
Perigynium shape
Linear (Orbiculate flat) +
Phenology
Fruiting early summer. +
Pistil architecture
2-3(-4)-carpellate +
Pistil fusion
fused +
Pistil quantity
1 +
Prophyll architecture
pistillate +
Prophyll atypical quantity
0 (3) +
Prophyll position
subtending +
Prophyll quantity
3 (?) +  and 1 (?) +
Proximal bract architecture
sheathless +  and bristlelike +
Proximal bract architecture or shape
leaflike +
Proximal bract shape
scale-like +
Proximal internode atypical some measurement
13mm;18mm +
Proximal internode some measurement
0.4 cm4 mm <br />0.004 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Proximal scale architecture
pistillate +
Publication title
Novon +
Publication year
2001 +
Raceme arrangement
arranged +
Reference
None +
Rhizome shape
elongate +
Root derivation
adventitious +
Root texture
fibrous +
Scale architecture
staminate +  and pistillate +
Scale atypical quantity
6 (30) +
Scale atypical some measurement
0.36 cm3.6 mm <br />0.0036 m <br /> (0.39 cm3.9 mm <br />0.0039 m <br />) +
Scale coloration
pale-brown +
Scale l w ratio
2.4-3.1(-3.4) +
Scale position
basal +  and proximal +
Scale quantity
1;0;1 +
Scale reproduction
fertile +
Scale shape
obtuse;acuminate +
Scale some measurement
0.39 cm3.9 mm <br />0.0039 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Seed quantity
1 +
Sheath front texture
herbaceous +  and membranous +
Sheath front variability
not differentiated +
Sheath pubescence
glabrous +
Sheath shape
cylindric +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V23/V23 665.xml +
Special status
Illustrated +  and Endemic +
Spike arrangement
arranged +
Spike atypical quantity
8 (10) +
Spike fusion
distinct +
Spike length
1 cm10 mm <br />0.01 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
Spike quantity
4;8 +
Spike shape
ovoid +
Spike width
0.4 cm4 mm <br />0.004 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Spikelet architecture
1-flowered +
Stamen atypical quantity
1 (3) +
Stamen fusion
distinct +
Stamen quantity
1 +  and 3 +
Stem architecture
septate +, hollow +  and solid +
Stem shape
compressed +, terete +  and trigonous +
Stigma quantity
2 +
Stigma relief
papillate +
Style architecture or shape
undivided +
Style arrangement or course or shape
linear +
Style duration
deciduous +  and persistent +
Style shape
2-3(-4)-fid +
Summit shape
u-shaped +  and truncate +
Taxon family
Cyperaceae +
Taxon name
Carex opaca +
Taxon parent
Carex sect. Ovales +
Taxon rank
species +
Terminal spike reproduction
gynecandrous +
Testa fusion
free +
Testa width
thin +
Vein shape
concave;orbiculate;elliptic;orbiculate;elliptic;ovate +
Vein thickness
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
Volume
Volume 23 +
Whole organism architecture
short-rhizomatous +
Whole organism duration
perennial +
Whole organism growth form
plant +  and cespitose +
Whole organism quantity
0 (?) +  and 200 (?) +
X chromosome quantity
10 +