familyAsteraceae
tribeAsteraceae tribe Heliantheae
subtribeAsteraceae (tribe Heliantheae) subtribe Gaillardiinae
genusHelenium
speciesHelenium elegans
varietyHelenium elegans var. amphibolum

Helenium elegans var. amphibolum

(A. Gray) Bierner

Sida 5: 47. 1972.

Mark W. Bierner
Basionym: Helenium amphibolum A. Gray Proc. Amer. Acad. Arts 9: 202. 1874
Treatment appears in FNA Volume 21. Treatment on page 433.

Plants 25–70 cm. Leaves: proximal blades usually irregularly toothed or lobed; mid and distal leaves usually entire. Heads 20–50. Peduncles 3–14 cm. Involucres 7–11 × 8–12 (–13) mm. Ray-florets 13–17; corollas 6.3–15 (–19) × 2.2–5.5 (–8.7) mm. Disc-florets 250–500 (–700+). Cypselae 0.7–1 mm; pappi 0.1–0.3 (–0.4) mm. 2n = 26.


Phenology: Flowering (Feb–)Mar–Jun(–Sep).
Habitat: Calcareous soils, ditches, washes, along streams
Elevation: 300–1900 m

Distribution

V21-1085-distribution-map.gif

Tex., Mexico (Coahuila), Mexico (Nuevo León), Mexico (San Luis Potosí), Mexico (Tamaulipas)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Helenium elegans var. amphibolum"
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2n chromosome quantity
26 +
Anther base shape
not tailed +, rounded +  and obtuse +
Anther dehiscence
introrse +
Anther fusion
connate +
Anther theca coloration
pale +
Apex fusion
connate +  and distinct +
Apex growth form or texture
herbaceous +
Apex size
subequal +
Apex texture
scarious +
Apical appendage presence
absent +
Apical appendage shape
usually ovate +  and lanceolate +
Appendage pubescence
hirsute +
Appendage relief
papillate +
Appendage shape
usually deltate +  and lanceolate +
Array architecture
paniculiform +
Array development
indeterminate +  and determinate +
Author
Mark W. Bierner +
Authority
(A. Gray) Bierner +
Band architecture
continuous +
Band quantity
1 +
Base shape
decurrent +
Basionyms
Helenium amphibolum +
Blade architecture
compound +  and simple +
Blade shape
pinnatifid;lobed;spatulate;ovate;spatulate;ovate;oblong;oblanceolate;linear;lanceolate;elliptic +
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 quantity
35;150 +
Bristle shape
Plumose (?) +
Calyculus presence
absent +
Calyculus quantity
Of 1 (15+ bractlets) +
Corolla architecture
zygomorphic +
Corolla atypical length
1.5 cm15 mm <br />0.015 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
Corolla atypical some measurement
0.23 cm2.3 mm <br />0.0023 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Corolla atypical width
0.55 cm5.5 mm <br />0.0055 m <br /> (0.87 cm8.7 mm <br />0.0087 m <br />) +
Corolla coloration
yellow +  and brown +
Corolla length
0.63 cm6.3 mm <br />0.0063 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Corolla some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
Corolla width
0.22 cm2.2 mm <br />0.0022 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
Cypsela architecture
monomorphic +
Cypsela architecture or shape
beaked +
Cypsela growth form
dimorphic +
Cypsela pubescence
hairy +
Cypsela shape
4-5-angled +  and obpyramidal +
Cypsela some measurement
0.7mm;1mm +
Disc-floret architecture
staminate +
Disc-floret atypical quantity
500 (700) +
Disc-floret quantity
250 (500) +
Disc-floret reproduction
fertile +  and bisexual +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distal blade architecture or shape
entire +
Distal blade shape
lanceolate;linear +
Distribution
Tex. +, Mexico (Coahuila) +, Mexico (Nuevo León) +, Mexico (San Luis Potosí) +  and Mexico (Tamaulipas) +
Elevation
300–1900 m +
Embryo course
straight +
Face coloration
gland-dotted +
Face pubescence
glabrous or +  and sparsely densely hairy +
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 architecture
corymbiform +
Glomerule arrangement
singly +
Habitat
Calcareous soils, ditches, washes, along streams +
Head architecture
discoid +  and radiate +
Head arrangement
singly +
Head atypical quantity
2 (300) +
Head development
indeterminate +
Head quantity
20;50 +
Head reproduction
homogamous +  and heterogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Individual head architecture
each +  and sessile +
Involucre atypical width
1.2 cm12 mm <br />0.012 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Involucre diameter
0.4 cm4 mm <br />0.004 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
Involucre length
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Involucre position relational
surrounding +
Involucre shape
ovoid;obconic;ovoid;obconic;hemispheric;globose +
Involucre width
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Leaf architecture
sessile +  and petiolate +
Leaf arrangement
alternate +
Leaf position
cauline +
Leaf pubescence
hairy +  and glabrous +
Line quantity
2 +
Lobe atypical quantity
3 (5) +
Lobe quantity
5 (?) +
Lobe shape
deltate +
Margin architecture or shape
dentate to pinnatifid or palmatifid +  and entire +
Mid and distal leaf architecture or shape
entire +
Number of lower taxa
0 +
Outer phyllary fusion
connate +  and distinct +
Outer phyllary shape
ovate +, oblong +, oblanceolate +, linear +, lanceolate +  and elliptic +
Outer phyllary size
unequal +  and subequal +
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 +
Pappus atypical some measurement
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
Pappus duration
persistent +
Pappus life cycle
falling +
Pappus some measurement
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
Peduncle pubescence
hairy +
Peduncle some measurement
3 cm30 mm <br />0.03 m <br /> (14 cm140 mm <br />0.14 m <br />) +
Pericarp fragility
tough +
Pericarp width
thick +
Peripheral floret presence
absent +
Peripheral floret quantity
In 1 (3+ series) +
Petal fusion
connate +
Phenology
Flowering (Feb–)Mar–Jun(–Sep). +
Phyllary atypical quantity
34 (40) +
Phyllary duration
persistent +
Phyllary fusion
distinct +
Phyllary life cycle
falling +
Phyllary pubescence
hairy +
Phyllary quantity
9 +  and 34 +
Phyllary size
unequal +
Phyllary texture
Herbaceous (Chartaceous) +
Proximal blade shape
lobed +  and toothed +
Proximal mid-blade architecture or shape
entire +
Proximal mid-blade shape
Lobed (Toothed) +
Publication title
Sida +
Publication year
1972 +
Ray-floret architecture
pistillate +
Ray-floret presence
absent +
Ray-floret quantity
13 (17) +
Ray-floret reproduction
fertile +
Receptacle architecture
epaleate +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle relief
pitted +
Receptacle shape
ovoid;hemispheric;ovoid;hemispheric;globose;conic +
Reference
None +
Root texture
fibrous +
Scale architecture or shape
entire +
Scale atypical some measurement
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
Scale presence
absent +
Scale quantity
6 +  and 7 +
Scale shape
non-aristate +
Scale some measurement
0.005 cm0.05 mm <br />5.0e-5 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
2 (3) +
Series quantity
2 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21 1085.xml +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem architecture
winged +  and branched +
Stem atypical quantity
1 (?) +  and 10 (?) +
Stem orientation
erect +
Stem pubescence
glabrous or +  and sparsely moderately hairy +
Stem quantity
1 +
Streak coloration or density
purple +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
hirsutulous +  and glabrous +
Style quantity
1 +
Style relief
papillate +
Synonyms
Compositae +
Taxon family
Asteraceae +
Taxon name
Helenium elegans var. amphibolum +
Taxon parent
Helenium elegans +
Taxon rank
variety +
Throat shape
urceolate +  and campanulate +
Tube height or length or size
shorter +
Tube shape
dilated +
Tube variability
equaling +
Ultimate margin shape
toothed +  and entire +
Volume
Volume 21 +
Whole-organism duration
annual +
Whole-organism some measurement
20 cm200 mm <br />0.2 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
Whole organism growth form
plant +
Whole organism some measurement
25cm (70cm) +
X chromosome quantity
17 +