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2n chromosome quantity
20 +
Achene architecture
not winged +
Achene coloration
brown +
Achene length
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Achene pubescence
glabrous +
Achene reflectance
shiny +
Achene reproduction
homocarpic +
Achene shape
3-gonous +
Achene width
2mm;3mm +
Anther coloration
yellowish +  and reddish +
Anther dehiscence
dehiscing +
Anther shape
elliptic +  and ovate +
Apex shape
acute;obtuse;acute +
Author
Craig C. Freeman +
Authority
(Linnaeus) Campderá +
Base architecture
branched +
Base coloration
reddish +
Base position or shape
distal +
Base shape
mostly truncate +  and subcordate +
Base width
broad +
Basionyms
Rumex spinosus +
Blade architecture
simple +
Blade length
3 cm30 mm <br />0.03 m <br /> (13 cm130 mm <br />0.13 m <br />) +
Blade shape
ovate;ovate-oblong or triangular +
Blade width
1.1 cm11 mm <br />0.011 m <br /> (12 cm120 mm <br />0.12 m <br />) +
Bract architecture
foliaceous +  and perfoliate +
Bract fusion
connate +
Bract presence
absent +
Bract quantity
2;10 +
Bract shape
scale-like +
Bracteole fusion
connate +
Branch fusion
free +
Branch location
aerial +
Caudex stem architecture or arrangement
compact +
Caudex stem orientation
just below the soil surface or and above the soil surface +  and spreading +
Caudex stem texture
woody +
Cauline leaf architecture
petiolate +
Cauline leaf arrangement
alternate +
Common name
Devil’s-thorn +, little jack +, spiny threecornerjack +  and spiny emex +
Distribution
Calif. +, Fla. +, Mass. +, N.J. +, Tex. +, South America (Argentina) +, South America (Ecuador) +, South America (Peru) +, Eurasia (Mediterranean region) +, n Africa (Mediterranean region) +, in Eurasia (Cyprus) +, in Eurasia (India) +, in Eurasia (Iran) +, in Eurasia (Iraq) +, in Eurasia (Israel) +, in Eurasia (Lebanon) +, in Eurasia (Pakistan) +, in Eurasia (Syria) +, in Eurasia (Turkey) +, Africa (Algeria) +, Africa (Kenya) +, Africa (Kuwait) +, Africa (Mauritius) +, Africa (Morocco) +, Atlantic Islands (Canary Islands) +, Pacific Islands (Hawaii) +  and Australia +
Elevation
0-500 m +
Embryo architecture or shape
folded +
Embryo course
curved +
Endosperm development
nuclear +
Endosperm pubescence or texture
mealy +
Endosperm quantity
abundant +
Filament fusion
free +  and distinct +
Filament pubescence
glabrous +
Flower architecture
pistillate +  and staminate +
Flower position
axillary +
Flower position or structure subtype
terminal +
Flower presence
absent +
Flower quantity
2;7 +
Flower reproduction
unisexual +
Flowering-stem architecture
disarticulating +  and solid +
Flowering-stem growth form or orientation
decumbent to erect +  and prostrate +
Flowering-stem location
aerial +
Flowering-stem orientation
Arising (?) +
Flowering-stem shape
fistulose +
Fruit fragility or size
stout +
Fruits achene architecture
unwinged +  and winged +
Fruits achene coloration
black +, red +, brown +  and yellowish +
Fruits achene position
exserted +  and included +
Fruits achene pubescence
pubescent +  and glabrous +
Fruits achene reproduction
homocarpic +
Fruits achene shape
spheroidal +, 4-gonous +, lenticular +, biconvex +, discoid +, 3-gonous +  and 2-gonous +
Habitat
Sandy shores, disturbed ground +
Illustration copyright
Flora of North America Association +
Illustrator
Bee F. Gunn +
Inflorescence architecture
pedunculate +
Inflorescence architecture or shape
capitate +
Inflorescence arrangement
cluster +
Inflorescence position
axillary +
Inflorescence position or structure subtype
terminal +
Inflorescence shape
racemelike +
Inner tepal fragility or size
stout +
Inner tepal shape
linear-lanceolate +
Inner tepal some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Introduced
true +
Involucral-bract position
enclosed +
Involucre shape
tubular +
Involucre texture
nonmembranous +
Leaf arrangement
alternate +
Leaf duration
deciduous +
Leaf position
cauline +  and basal +
Margin architecture
awn-tipped +
Margin architecture or shape
entire +
Margin pubescence
pubescent +  and glabrous +
Margin shape
undulate +, entire +  and obscurely crenulate or dentate +
Node shape
swollen +
Number of lower taxa
0 +
Ocreum architecture
partly +  and foliaceous +
Ocreum architecture or fragility
loose +
Ocreum duration
deciduous +
Ocreum presence
absent +
Ocreum pubescence
glabrous +
Ocreum pubescence or texture
chartaceous +
Ocreum shape
cylindric +
Ocreum texture
coriaceous +  and membranous +
Outer tepal orientation
erect +
Outer tepal quantity
3 +
Outer tepal relief
tuberculate +
Outer tepal shape
Ovate (Oblong) +
Outer tepal some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Ovary architecture or structure in adjective form
1-locular +
Ovule orientation
anatropous +, , +  and orthotropous +
Ovule quantity
1 +
Pedicel architecture
articulate +
Pedicel presence
absent +
Pedicel quantity
nearly +
Pedicel size
accrescent +
Peduncle architecture
awnless +
Peduncle arrangement
cluster +
Peduncle orientation
spreading;erect +
Peduncle presence
absent +
Perianth architecture
unwinged +
Perianth coloration
greenish +
Perianth duration
persistent +
Perianth pubescence
glabrous +
Perianth shape
campanulate +
Perianth size
nonaccrescent +  and accrescent +
Perianth texture
indurate +
Petiole architecture
articulate +
Petiole presence
absent +
Petiole pubescence
glabrous +
Petiole some measurement
2 cm20 mm <br />0.02 m <br /> (29 cm290 mm <br />0.29 m <br />) +
Phenology
Flowering year-round. +
Pistil architecture
(2-)3(-4)-carpellate +
Pistil quantity
1 +
Publication title
Monogr. Rumex, +
Publication year
1819 +
Reference
None +
Root architecture
tuberous +
Root size
slender;stout +
Root texture
fibrous +
Seed quantity
1 +
Segment shape
ringlike +
Slit dehiscence or orientation
longitudinal +
Soil orientation
Spreading (Erect) +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V5/V5 1017.xml +
Special status
Weedy +  and Introduced +
Spine fragility or size
stout +
Spine orientation
spreading +  and reflexed +
Spine some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Stamen atypical quantity
1 (6) +
Stamen quantity
4 +  and 6 +
Staminode presence
absent +
Stem architecture
not scapose +
Stem architecture or function or pubescence
glandular +
Stem growth form
scandent +
Stem orientation
ascending +  and erect +
Stem pubescence
glabrous +
Stigma architecture
peltate +
Stigma quantity
1 +
Stigma shape
penicillate +
Stipule architecture
foliaceous +
Stipule duration
deciduous +  and persistent +
Stipule presence
absent +
Stipule pubescence or texture
chartaceous +
Stipule shape
2-lobed +  and cylindric +
Stipule texture
coriaceous +  and membranous +
Style fusion
distinct +
Style orientation
erect +
Style quantity
3 +
Surface orientation
spreading;erect +
Taproot architecture
solid +
Taxon family
Polygonaceae +
Taxon name
Emex spinosa +
Taxon parent
Emex +
Taxon rank
species +
Tendril presence
absent +
Tepal architecture
sepaloid +
Tepal architecture or shape
entire +
Tepal atypical quantity
5 (6) +
Tepal fusion
connate +  and distinct +
Tepal growth form
dimorphic +
Tepal quantity
6 +
Tepal shape
narrowly oblong +  and oblanceolate +
Tepal size
subequal +
Tepal some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Tepal texture
coriaceous +
Tube duration
persistent +
Tube texture
membranous +
Tubercle architecture or function or pubescence
glandular +
Tubercle coloration or relief
glandular-punctate +
Tubercle development
developing +
Tubercle prominence
raised +
Tubercle pubescence
pubescent +  and glabrous +
Volume
Volume 5 +
Whole organism architecture
taprooted +
Whole organism duration
annual +
Whole organism growth form
plant +
Whole organism quantity
2 (?) +
Whole organism reproduction
polycarpic +
Whole organism some measurement
3dm (6dm) +
Whorl quantity
2 +
X chromosome quantity
10 +