familyCyperaceae
genusCyperus
subgenusCyperus subg. Cyperus
speciesCyperus setigerus

Cyperus setigerus

Torrey & Hooker

Ann. Lyceum Nat. Hist. New York 3: 434. 1836.

Gordon C. Tucker*, Brian G. Marcks*, J. Richard Carter *
Treatment appears in FNA Volume 23. Treatment on page 170. Mentioned on page 146, 168.
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Illustrator: Yevonn Wilson-Ramsey

Copyright: Flora of North America Association

Herbs, perennial, rhizomatous. Culms trigonous, 50–100 cm × 2.5–3 mm, glabrous. Leaves V-shaped, 20–50 cm × 4–7 mm. Inflorescences: spikes loosely ovoid, 1.5–7 cm wide; rays 5–13, 1–21 cm; 2d order rays 0.5–3 cm; bracts 3–8, V-shaped, 5–50 cm × 2.5–5.6 mm; rachilla persistent, wings 0.4–0.6 mm wide. Spikelets 5–30, compressed, linear, (5–) 12–40 × 1.5–2.2 mm; floral scales deciduous, 6–24, reddish-brown to yellowish-brown laterally, greenish medially, 5–7-ribbed, elliptic, 3–4 × 1.4–1.6 mm, apex obtuse. Flowers: anthers 1.5–2 mm; styles 2–2.3 mm; stigmas 2–3 mm. Achenes dark-brown, sessile, oblong, 1.5 × 0.4–0.5 mm, apex apiculate, surfaces puncticulate.


Phenology: Fruiting summer.
Habitat: Ditches, croplands
Elevation: 100–1000 m

Distribution

V23 278-distribution-map.jpg

Kans., Mo., N.Mex., Okla., Tex.

Discussion

Selected References

None.

Lower Taxa

None.

"shortened" is not a number.

... more about "Cyperus setigerus"
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Achene architecture
sessile +
Achene coloration
dark-brown +
Achene length
1.5 cm15 mm <br />0.015 m <br /> (?) +
Achene life cycle
mature +
Achene shape
oblong +
Achene width
0.4mm;0.5mm +
Anther fixation
basifixed +
Anther some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Apex architecture or shape
apiculate +
Apex shape
obtuse +
Author
Gordon C. Tucker* +, Brian G. Marcks* +  and J. Richard Carter * +
Authority
Torrey & Hooker +
Base duration
persistent +  and deciduous +
Base shape
decurrent +
Blade presence
absent +
Blade prominence or shape
flat +
Blade shape
w--shaped +  and keeled +
Bract architecture
glumaceous +  and foliaceous +
Bract arrangement
2-ranked +  and arranged +
Bract length
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +
Bract orientation
ascending +  and appressed +
Bract quantity
3;8 +
Bract shape
v--shaped +
Bract width
0.25 cm2.5 mm <br />0.0025 m <br /> (0.56 cm5.6 mm <br />0.0056 m <br />) +
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 +
Culm architecture or arrangement or growth form
not +  and solitary +
Culm length
50 cm500 mm <br />0.5 m <br /> (100 cm1,000 mm <br />1 m <br />) +
Culm pubescence
glabrous +
Culm relief
scabridulous +
Culm shape
trigonous +
Culm width
2.5mm;3mm +
Distal scale architecture
empty +
Distribution
Kans. +, Mo. +, N.Mex. +, Okla. +  and Tex. +
Elevation
100–1000 m +
Embryo position
basal +
Endosperm quantity
abundant +
Floral scale architecture or shape
5-7-ribbed +
Floral scale arrangement
distichous +
Floral scale arrangement or shape
elliptic +
Floral scale coloration
greenish +, reddish-brown +  and yellowish-brown laterally +
Floral scale duration
deciduous +
Floral scale length
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Floral scale quantity
6 (24) +
Floral scale width
0.14 cm1.4 mm <br />0.0014 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
Flower position
hypogynous +  and subtending +
Flower quantity
single +
Flower reproduction
bisexual +
Fruits achene shape
biconvex +  and trigonous +
Habitat
Ditches, croplands +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Inflorescence architecture
subumbellate +  and capitate +
Inflorescence position
pseudolateral +
Inflorescence position or structure subtype
terminal +
Inflorescences panicle architecture
pseudoumbel +
Inflorescences panicle development
modified +
Involucral-bract architecture or shape
leaflike +
Involucral-bract arrangement
arranged +
Involucral-bract orientation
spreading +  and erect +
Involucral-bract quantity
1;22 +
Leaf arrangement
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
Leaf length
20 cm200 mm <br />0.2 m <br /> (?) +  and 50 cm500 mm <br />0.5 m <br /> (?) +
Leaf position
basal +
Leaf shape
v--shaped +
Leaf width
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Ligule presence
absent +
Locule quantity
1 +
Margin fusion
fused +
Number of lower taxa
0 +
Perianth life cycle
falling +
Perianth presence
absent +
Perianth quantity
with (1-)3-6(-30) bristles and/or scales +
Pericarp width
thin +
Phenology
Fruiting summer. +
Pistil architecture
2-3(-4)-carpellate +
Pistil fusion
fused +
Pistil quantity
1 +
Prickle orientation
antrorse +  and extrorse +
Prophyll architecture
pistillate +
Prophyll atypical quantity
0 (3) +
Prophyll position
subtending +
Prophyll quantity
3 (?) +  and 1 (?) +
Publication title
Ann. Lyceum Nat. Hist. New York +
Publication year
1836 +
Rachillum architecture
continuous +, articulate +, winged +  and wingless +
Rachillum duration
persistent +
Rachillum life cycle
falling +
Rachis prominence
conspicuous +
Ray arrangement
singly +
Ray length
unequal +
Ray quantity
5 +  and 13 +
Ray some measurement
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Reference
None +
Root derivation
adventitious +
Root texture
fibrous +
Scale architecture
empty +
Scale arrangement
distichous +
Scale atypical quantity
6 (30) +
Scale position
basal +  and proximal +
Scale quantity
0;76 +
Scale reproduction
fertile +
Scale shape
cylindric;compressed +
Seed quantity
1 +
Sheath shape
cylindric +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V23/V23 278.xml +
Spike architecture or fragility
loose +
Spike density
dense +
Spike quantity
single +
Spike shape
ovoid +
Spike width
1.5 cm15 mm <br />0.015 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Spikelet architecture
spicate +
Spikelet architecture or arrangement or growth form
solitary +
Spikelet arrangement
arranged +
Spikelet arrangement or course or shape
linear +
Spikelet atypical length
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Spikelet length
1.2 cm12 mm <br />0.012 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Spikelet life cycle
falling +
Spikelet quantity
5 +  and 30 +
Spikelet shape
compressed +
Spikelet width
1.5mm;2.2mm +
Stamen atypical quantity
1 (3) +
Stamen fusion
distinct +
Stamen quantity
3 +
Stem architecture
septate +, hollow +  and solid +
Stem shape
compressed +, terete +  and trigonous +
Stigma quantity
3 +
Stigma relief
papillate +
Stigma some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Style architecture or shape
undivided +
Style arrangement or course or shape
linear +
Style shape
2-3-fid +
Style some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
Surface coloration or relief
puncticulate +
Synonyms
Undefined subg. Chlorocyperus +, Cyperus subg. Mariscus +  and Undefined subg. Papyrus +
Taxon family
Cyperaceae +
Taxon name
Cyperus setigerus +
Taxon parent
Cyperus subg. Cyperus +
Taxon rank
species +
Testa fusion
free +
Testa width
thin +
Volume
Volume 23 +
Whole organism architecture
rhizomatous +
Whole organism duration
perennial +
Whole organism growth form
herb +
Wing coloration
hyaline +
Wing width
0.4mm +  and 0.6mm +
X chromosome quantity
5;100 +