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2n chromosome quantity
34 +
Abaxial face pubescence
glabrous +, strigose +  and hispid or hirsute +
Abaxial face pubescence or relief
scabrous +
Anther base shape
not tailed +, rounded +  and obtuse +
Anther coloration
black +  and dark-brown +
Anther dehiscence
introrse +
Anther fusion
connate +
Anther theca coloration
pale +  and dark +
Apex fusion
connate +  and distinct +
Apex growth form or texture
herbaceous +
Apex shape
acute;slightly acuminate +
Apex size
subequal +
Apex texture
scarious +
Apical appendage presence
absent +
Apical appendage shape
usually ovate +  and lanceolate +
Appendage coloration
dark +
Appendage pubescence
hirsute +
Appendage relief
papillate +
Appendage shape
usually deltate +  and lanceolate +
Array architecture
spiciform +, paniculiform +  and corymbiform +
Array development
indeterminate +  and determinate +
Author
Edward E. Schilling +
Authority
Linnaeus +
Band architecture
continuous +
Band quantity
1 +
Base shape
cuneate +
Blade architecture
3-nerved +
Blade atypical width
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Blade length
8 cm80 mm <br />0.08 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Blade shape
narrowly lanceolate;linear +
Blade width
0.15 cm1.5 mm <br />0.0015 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Body architecture
winged;ribbed;winged;ribbed +
Body architecture or pubescence or relief
smooth +
Body relief
tuberculate +  and rugose +
Bractlet quantity
1;15 +
Branch arrangement or course or shape
linear +
Branch structure in adjective form
stigmatic +
Bristle architecture
barbellulate +  and barbellate +
Bristle shape
Plumose (?) +
Calyculus presence
absent +
Calyculus quantity
Of 1 (15+ bractlets) +
Common name
Swamp sunflower +
Corolla architecture
zygomorphic +
Corolla coloration
reddish +  and yellow +
Corolla some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Cypsela architecture
monomorphic +
Cypsela architecture or shape
beaked +
Cypsela growth form
dimorphic +
Cypsela pubescence
glabrate +
Cypsela shape
compressed +  and obpyramidal +
Cypsela some measurement
2mm;3mm +
Disc-floret atypical quantity
15 (30) +
Disc-floret quantity
30 (150) +
Disc-floret reproduction
fertile +  and bisexual +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
Ala. +, Ark. +, Fla. +, Ga. +, Ind. +, Iowa +, Ky. +, La. +, Md. +, Miss. +, Mo. +, N.J. +, N.C. +, Ohio +, Okla. +, Pa. +, S.C. +, Tenn. +, Tex. +, Va. +  and W.Va. +
Elevation
10–700 m +
Embryo course
straight +
Face pubescence
hairy +  and glabrous +
Filament fusion
distinct +
Floret architecture
pistillate +, staminate +  and neuter +
Floret atypical quantity
5;15 +
Floret position
proximal +
Floret quantity
1;5 +
Floret reproduction
bisexual +
Fruit architecture
winged +  and beaked +
Fruit condition or texture
dry +
Fruit density
dispersed +
Glomerule arrangement
singly +
Habitat
Open to shaded, usually moist places +
Head architecture or arrangement
radiate +
Head architecture or shape
discoid +
Head arrangement
in more or less corymbiform , paniculiform or spiciform , arrays +  and singly +
Head development
indeterminate +
Head quantity
3;16 +
Head reproduction
homogamous +  and heterogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Marjorie C. Leggitt +
Individual head architecture
each +  and sessile +
Involucre diameter
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Involucre position relational
surrounding +
Involucre shape
hemispheric +
Lamina some measurement
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Leaf architecture
subsessile +  and sessile +
Leaf arrangement
alternate +  and opposite +
Leaf position
cauline +
Line quantity
2 +
Lobe atypical quantity
3 (5) +
Lobe coloration
yellow +
Lobe quantity
5 (?) +
Lobe shape
triangular +
Margin architecture or shape
entire +
Margin shape
lobed +
Number of lower taxa
0 +
Ovary architecture
2-carpellate +
Ovary architecture or structure in adjective form
1-locular +
Ovary position
inferior +
Ovule fixation
attached +
Ovule orientation
anatropous +
Ovule quantity
1 +
Palea shape
3-toothed;entire +
Palea some measurement
0.55 cm5.5 mm <br />0.0055 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
Pappus duration
persistent +
Pappus life cycle
falling +
Pappus presence
absent +
Pappus shape
coroniform +
Peduncle some measurement
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Pericarp fragility
tough +
Pericarp width
thick +
Peripheral floret presence
absent +
Peripheral floret quantity
In 1 (3+ series) +
Petal fusion
connate +
Phenology
Flowering late summer–fall. +
Phyllary atypical quantity
45 (100) +
Phyllary duration
persistent +
Phyllary fusion
distinct +
Phyllary length
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Phyllary life cycle
falling +
Phyllary quantity
25 +  and 32 +
Phyllary shape
Lanceolate (?) +
Phyllary size
unequal +
Phyllary texture
Herbaceous (Chartaceous) +
Phyllary width
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Publication title
Sp. Pl. +
Publication year
1753 +
Ray-floret architecture
neuter +
Ray-floret atypical quantity
30 (100) +
Ray-floret presence
absent +
Ray-floret quantity
10 (20) +
Ray-floret reproduction
sterile +
Receptacle architecture
paleate +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle shape
flat;slightly convex +
Reference
None +
Root texture
fibrous +
Scale architecture or relief
erose +
Scale atypical quantity
2 (3) +
Scale height or length or size
shorter +
Scale quantity
2 +
Scale shape
aristate +
Scale some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
1 (2) +
Series quantity
2;3 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21 394.xml +
Special status
Endemic +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem architecture
branched +
Stem growth form
procumbent +  and decumbent +
Stem orientation
erect +
Stem pubescence
hairy +
Stigmatic papilla architecture
continuous +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
hirsutulous +  and glabrous +
Style quantity
1 +
Style relief
papillate +
Synonyms
Helianthus angustifolius var. planifolius +
Taxon family
Asteraceae +
Taxon name
Helianthus angustifolius +
Taxon parent
Helianthus +
Taxon rank
species +
Throat shape
campanulate +
Throat variability
equaling +
Tube height or length or size
shorter +
Ultimate margin shape
toothed +  and entire +
Volume
Volume 21 +
Whole-organism atypical some measurement
300 cm3,000 mm <br />3 m <br /> (500 cm5,000 mm <br />5 m <br />) +
Whole-organism duration
perennial +
Whole-organism some measurement
50 cm500 mm <br />0.5 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
Whole organism atypical some measurement
2 cm20 mm <br />0.02 m <br /> (20 cm200 mm <br />0.2 m <br />) +
Whole organism growth form
shrub +  and subshrub +
Whole organism some measurement
20cm (500cm) +
X chromosome quantity
17 +