familyCyperaceae
genusCarex
sectionCarex sect. Ovales
speciesCarex scoparia
varietyCarex scoparia var. tessellata

Carex scoparia var. tessellata

Fernald & Wiegand

Rhodora 12: 135. 1910.

Joy Mastrogiuseppe, Paul E. Rothrock, A. C. Dibble, A. A. Reznicek
Common names: Carex à écailles contrastantes
Treatment appears in FNA Volume 23. Treatment on page 362. Mentioned on page 360.
Please click on the illustration for a higher resolution version.
Illustrator: Susan A. Reznicek

Copyright: Flora of North America Association

Inflorescences dense, 1.5–2.5 cm; spikes aggregated. Pistillate scales reddish-brown, chestnut or blackish with pale or greenish midstripe, apex long-acuminate. Perigynia dark tinged at tip, otherwise pale or golden-brown, contrasting with pistillate scales and beaks, elliptic, 4.2–5 × 1.5–2.2 mm, 2–2.6 times as long as wide.


Phenology: Fruiting early–mid summer.
Habitat: Dry to moist meadows, sandy, acidic soils
Elevation: 0–30 m

Distribution

V23 634-distribution-map.jpg

N.B., Maine.

Discussion

In the field, Carex scoparia var. tessellata might be confused with the Maine endemic C. oronensis. The two taxa have differing perigynia characteristics and habitats (that of C. oronensis often being drier). Also, the distribution of C. scoparia var. tessellata appears to be near the coast, while C. oronensis occurs throughout much of the Penobscot River Valley and into the upper reaches of the Kennebec River Valley.

Selected References

None.

Lower Taxa

None.

"shortened" is not a number."+timesaslongasinflorescences" is not declared as a valid unit of measurement for this property."not undefined" is not a number."shorter and narrower" is not a number.

... more about "Carex scoparia var. tessellata"
RDF feed
Achene shape
elliptic;ovate +
Achene size
smaller +
Achene some measurement
2.2mm;4.8mm +
Achene thickness
0.3mm +  and 0.4mm +
Anther fixation
basifixed +
Apex architecture
bidentatate +
Apex architecture or pubescence or relief
, +  and smooth +
Apex relief
papillose +
Apex shape
long-acuminate +
Apiculu height or length or size
short +
Author
Joy Mastrogiuseppe +, Paul E. Rothrock +, A. C. Dibble +  and A. A. Reznicek +
Authority
Fernald & Wiegand +
Basal sheath texture
fibrous +
Base architecture
winged +
Base duration
persistent +
Base quantity
fewer;fewer +
Base shape
acute +  and short-attenuate +
Base size
not enlarged +
Beak architecture
pistillate +
Beak architecture or shape
ciliate-serrulate +
Beak coloration
Pale (?) +  and Golden-brown (?) +
Beak shape
flattish +
Blade atypical width
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Blade length
10 cm100 mm <br />0.1 m <br /> (32 cm320 mm <br />0.32 m <br />) +
Blade presence
absent +
Blade prominence or shape
flat +
Blade quantity
3 +  and 5 +
Blade shape
v--shaped +
Blade width
0.14 cm1.4 mm <br />0.0014 m <br /> (0.3 cm3 mm <br />0.003 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 +
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 +
Common name
Carex à écailles contrastantes +
Cross-section architecture or pubescence or relief
smooth +
Cross-section relief
papillose +
Culm coloration
brown +
Culm reproduction
fertile +  and vegetative +
Culm shape
round +  and trigonous +
Culm some measurement
20 cm200 mm <br />0.2 m <br /> (100 cm1,000 mm <br />1 m <br />) +
Distal ligule some measurement
0.23 cm2.3 mm <br />0.0023 m <br /> (0.48 cm4.8 mm <br />0.0048 m <br />) +
Distal scale architecture
empty +
Distribution
N.B. +  and Maine. +
Elevation
0–30 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
Dry to moist meadows, sandy, acidic soils +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
Susan A. Reznicek +
Inflorescence architecture
open +
Inflorescence arrangement
racemose +
Inflorescence coloration
brown +, yellow +  and green +
Inflorescence density
dense +
Inflorescence l w ratio
1-1.5 +
Inflorescence length
1.5 cm15 mm <br />0.015 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Inflorescence orientation
nodding +  and arching +
Inflorescence position or structure subtype
terminal +
Inflorescence some measurement
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Inflorescence width
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Inflorescences panicle architecture
pseudoumbel +
Inflorescences panicle development
modified +
Internode some measurement
0.2 cm2 mm <br />0.002 m <br /> (1.3 cm13 mm <br />0.013 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 arrangement or growth form
clustered +
Leaf position
basal +  and cauline +
Leaf quantity
Few (?) +
Ligule presence
absent +
Locule quantity
1 +
Margin architecture
winged +
Margin architecture or shape
entire +
Margin coloration
hyaline +, golden brown +  and white +
Margin fusion
fused +
Margin prominence or shape
flat +
Margin shape
ridged +
Margin width
0.2mm +  and 0.6mm +
Midstripe coloration
greenish +  and pale +
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
5-veined +
Perigynium arrangement or shape
elliptic +
Perigynium coloration
golden-brown +, pale +  and dark tinged +
Perigynium l w ratio
2-2.6 +
Perigynium length
0.42 cm4.2 mm <br />0.0042 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Perigynium orientation
spreading +  and ascending +
Perigynium prominence or shape
flat +
Perigynium shape
Lanceolate (?) +
Perigynium thickness
0.35mm +  and 0.55mm +
Perigynium width
0.15 cm1.5 mm <br />0.0015 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
Phenology
Fruiting early–mid 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 some measurement
0.2 cm2 mm <br />0.002 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Proximal scale architecture
pistillate +
Publication title
Rhodora +
Publication year
1910 +
Raceme arrangement
arranged +
Reference
None +
Root derivation
adventitious +
Root texture
fibrous +
Scale architecture
pistillate +
Scale atypical quantity
6 (30) +
Scale coloration
blackish +, chestnut +  and reddish-brown +
Scale height or length or size
shorter +
Scale position
basal +  and proximal +
Scale quantity
1;0;1 +
Scale reproduction
fertile +
Scale shape
lanceolate +
Scale some measurement
0.34 cm3.4 mm <br />0.0034 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Seed quantity
1 +
Sheath front texture
herbaceous +  and membranous +
Sheath front variability
not differentiated +
Sheath shape
cylindric +
Sheath summit shape
u--shaped +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V23/V23 634.xml +
Special status
Illustrated +  and Endemic +
Spike arrangement
aggregated +
Spike atypical width
0.9 cm9 mm <br />0.009 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Spike fusion
distinct +
Spike length
0.7 cm7 mm <br />0.007 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Spike quantity
3;10 +
Spike shape
ellipsoid +
Spike width
0.3 cm3 mm <br />0.003 m <br /> (0.9 cm9 mm <br />0.009 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 +
Taxon family
Cyperaceae +
Taxon name
Carex scoparia var. tessellata +
Taxon parent
Carex scoparia +
Taxon rank
variety +
Terminal spike reproduction
gynecandrous +
Testa fusion
free +
Testa width
thin +
Volume
Volume 23 +
Whole organism architecture
short-rhizomatous +
Whole organism duration
perennial +
Whole organism growth form
plant +  and cespitose +
X chromosome quantity
10 +