familyCyperaceae
genusCyperus
subgenusCyperus subg. Cyperus
speciesCyperus esculentus
varietyCyperus esculentus var. macrostachyus

Cyperus esculentus var. macrostachyus

Boeckeler

Linnaea 36: 291. 1870.

Gordon C. Tucker*, Brian G. Marcks*, J. Richard Carter *
Synonyms: Cyperus esculentus var. lutesceus (Torrey & Hooker) Kükenthal Cyperus esculentus var. sprucei C. B. Clarke Cyperus lutescens Cyperus ruficomus
Treatment appears in FNA Volume 23. Treatment on page 169. Mentioned on page 168.

Spikelets divaricate, forming 75–90° angle with rachis, 10–40 × 2.4–3 mm; floral scales ovate, widest at midlength, (2.7–) 2.9–3.4 (–3.6) × (1.8–) 1.9–2.3 (–2.4) mm. Flowers: anthers (1.2–) 1.3–2 (–2.1) mm; styles (0.9–) 1.3–2 (–2.2) mm; stigmas (2–) 2.3–2.8 (–4) mm.


Phenology: Fruiting summer.
Habitat: Dunes, disturbed soils, croplands
Elevation: 0–200 m

Distribution

V23 275-distribution-map.jpg

Calif., Fla., Ga., N.Mex., N.Y., N.C., S.C., Tex., Mexico, Central America, South America

Discussion

Selected References

None.

Lower Taxa

None.

"shortened" is not a number."widest" is not a number.

... more about "Cyperus esculentus var. macrostachyus"
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Achene architecture
sessile +
Achene atypical length
0.15 cm1.5 mm <br />0.0015 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
Achene atypical width
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Achene coloration
brown +
Achene length
0.13 cm1.3 mm <br />0.0013 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Achene life cycle
mature +
Achene shape
ellipsoid +
Achene width
0.3mm;0.6mm +
Angle quantity
75;90 +
Anther atypical some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
Anther fixation
basifixed +
Anther some measurement
0.13 cm1.3 mm <br />0.0013 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Apex shape
obtuse;subacute;acute +
Author
Gordon C. Tucker* +, Brian G. Marcks* +  and J. Richard Carter * +
Authority
Boeckeler +
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 atypical length
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Bract atypical quantity
5 (7) +
Bract length
5 cm50 mm <br />0.05 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Bract orientation
less horizontal +  and ascending +
Bract quantity
4;5 +
Bract shape
v--shaped +, v-shaped +  and flanged +
Bract width
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.4 cm4 mm <br />0.004 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 atypical length
60 cm600 mm <br />0.6 m <br /> (100 cm1,000 mm <br />1 m <br />) +
Culm length
15 cm150 mm <br />0.15 m <br /> (60 cm600 mm <br />0.6 m <br />) +
Culm pubescence
glabrous +
Culm relief
scabridulous +
Culm shape
trigonous +
Culm width
0.6mm;3.4mm +
Distal scale architecture
empty +
Distribution
Calif. +, Fla. +, Ga. +, N.Mex. +, N.Y. +, N.C. +, S.C. +, Tex. +, Mexico +, Central America +  and South America +
Elevation
0–200 m +
Embryo position
basal +
Endosperm quantity
abundant +
Floral scale architecture or shape
3-ribbed +  and 7-9-ribbed +
Floral scale arrangement
distichous +
Floral scale atypical length
0.27 cm2.7 mm <br />0.0027 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
Floral scale atypical width
0.18 cm1.8 mm <br />0.0018 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
Floral scale coloration
laterally yellowish-brown +  and dark-brown medially brownish punct reddish or greenish +
Floral scale duration
persistent +
Floral scale length
0.18 cm1.8 mm <br />0.0018 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
Floral scale orientation
appressed +  and spreading +
Floral scale quantity
6 (34) +
Floral scale shape
ovate +
Flower position
hypogynous +  and subtending +
Flower quantity
single +
Flower reproduction
bisexual +
Fruits achene shape
biconvex +  and trigonous +
Habitat
Dunes, disturbed soils, croplands +
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 atypical length
40 cm400 mm <br />0.4 m <br /> (80 cm800 mm <br />0.8 m <br />) +
Leaf atypical width
0.4 cm4 mm <br />0.004 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
Leaf length
20 cm200 mm <br />0.2 m <br /> (?) +  and 40 cm400 mm <br />0.4 m <br /> (?) +
Leaf position
basal +
Leaf quantity
3 (7) +
Leaf shape
v--shaped +, flat +  and v-shaped or flanged +
Leaf width
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Ligule presence
absent +
Locule quantity
1 +
Margin fusion
fused +
Midlength atypical length
0.34 cm3.4 mm <br />0.0034 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
Midlength atypical width
0.23 cm2.3 mm <br />0.0023 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
Midlength length
0.29 cm2.9 mm <br />0.0029 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
Midlength width
0.19 cm1.9 mm <br />0.0019 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
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
Linnaea +
Publication year
1870 +
Rachillum architecture
continuous +, articulate +, winged +  and wingless +
Rachillum duration
persistent +
Rachillum life cycle
falling +
Rachis prominence
conspicuous +
Rachis some measurement
4mm;17mm +
Ray arrangement
singly +
Ray atypical some measurement
0.3 cm3 mm <br />0.003 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Ray length
unequal +
Ray quantity
4 +  and 10 +
Ray some measurement
2 cm20 mm <br />0.02 m <br /> (12 cm120 mm <br />0.12 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 275.xml +
Special status
W2 +, W1 +  and Illustrated +
Spike architecture or fragility
loose +
Spike atypical length
1.2 cm12 mm <br />0.012 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Spike atypical width
1.2 cm12 mm <br />0.012 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Spike density
dense +
Spike length
1.8 cm18 mm <br />0.018 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Spike quantity
single +
Spike shape
broadly ellipsoid;ovoid or hemispheric +
Spike width
1.8 cm18 mm <br />0.018 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Spikelet architecture
spicate +
Spikelet architecture or arrangement or growth form
solitary +
Spikelet arrangement
divaricate +
Spikelet atypical length
2 cm20 mm <br />0.02 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
Spikelet atypical quantity
20 (28) +
Spikelet atypical width
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Spikelet coloration
yellowish-brown +  and dark-brown +
Spikelet length
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Spikelet life cycle
falling +
Spikelet orientation
Ascending (?) +
Spikelet quantity
10 +  and 20 +
Spikelet shape
compressed-quadrangular;linear;linear-lanceoloid +
Spikelet width
2.4mm;3mm +
Stamen atypical quantity
1 (3) +
Stamen fusion
distinct +
Stamen quantity
3 +
Stem architecture
septate +, hollow +  and solid +
Stem shape
compressed +, terete +  and trigonous +
Stigma atypical some measurement
0.28 cm2.8 mm <br />0.0028 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Stigma quantity
3 +
Stigma relief
papillate +
Stigma some measurement
0.23 cm2.3 mm <br />0.0023 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
Stolon atypical some measurement
8cm (15cm) +
Stolon diameter
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Stolon fragility
pliable +
Stolon pubescence or texture
soft +
Stolon some measurement
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Stolon texture
spongy +
Style architecture or shape
undivided +
Style arrangement or course or shape
linear +
Style atypical some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
Style shape
2-3-fid +
Style some measurement
0.13 cm1.3 mm <br />0.0013 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Surface coloration or relief
puncticulate +
Synonyms
Cyperus esculentus var. lutesceus +, Cyperus esculentus var. sprucei +, Cyperus lutescens +  and Cyperus ruficomus +
Taxon family
Cyperaceae +
Taxon name
Cyperus esculentus var. macrostachyus +
Taxon parent
Cyperus esculentus +
Taxon rank
variety +
Testa fusion
free +
Testa width
thin +
Volume
Volume 23 +
Whole organism architecture
stoloniferous +
Whole organism duration
perennial +
Whole organism growth form
herb +
Wing coloration
hyaline +
Wing width
0.3mm +  and 0.5mm +
X chromosome quantity
5;100 +