familyAsteraceae
tribeAsteraceae tribe Cichorieae
genusHelminthotheca
speciesHelminthotheca echioides

Helminthotheca echioides

(Linnaeus) Holub

Folia Geobot. Phytotax. 8: 176. 1973.

John L. Strother
IntroducedIllustrated
Basionym: Picris echioides Linnaeus Sp. Pl. 2: 792. 1753
Treatment appears in FNA Volume 19. Treatment on page 300.
Please click on the illustration for a higher resolution version.
Illustrator: Barbara Alongi

Copyright: Flora of North America Association

Leaf-blades 50–150 (–250) × 10–50 (–80+) mm. Peduncles 1–5+ cm, bristly hispid. Calyculi: bracts 9–15+ × 3–5+ mm, margins and tips bristly-ciliate. Phyllaries often sigmoid in fruit, abaxial faces and tips bristly. Cypselae: bodies 2.5–3 mm, beaks 2.5–5 mm; pappi 4–7 mm. 2n = 10.


Phenology: Flowering May–Nov.
Habitat: Disturbed sites
Elevation: 0–50(–500) m

Distribution

V19-439-distribution-map.gif

Introduced; Alta., N.B., Ont., Sask., Ariz., Calif., Conn., D.C., Iowa, Maine, Md., Mass., Mo., Mont., N.J., N.Y., N.Dak., Ohio, Oreg., Pa., Vt., Va., Europe, widely elsewhere

Discussion

Reports for British Columbia and Nova Scotia need confirmation.

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Helminthotheca echioides"
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2n chromosome quantity
10 +
Anther base shape
tailed +
Anther dehiscence
introrse +
Anther fusion
connate +
Apex shape
acuminate +
Apex texture
scarious +
Apical appendage development
developed +
Apical appendage shape
ovate +  and lanceolate +
Appendage presence
absent +
Appendage pubescence
hirsute +
Appendage relief
papillate +
Array architecture
corymbiform +
Array architecture or fragility
loose +
Array development
indeterminate +  and determinate +
Author
John L. Strother +
Authority
(Linnaeus) Holub +
Awn pappus duration
persistent +
Awn pappus life cycle
falling +
Band architecture
continuous +
Band quantity
1 +
Basal leaf architecture
petiolate +
Base shape
decurrent +
Basionyms
Picris echioides +
Beak fragility
fragile +
Beak length or size
longer +
Beak some measurement
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Beak variability
equaling +
Blade architecture
compound +  and simple +
Blade shape
ovate;oblong;ovate;oblong;oblanceolate;lanceolate;elliptic +
Body architecture
winged +
Body architecture or shape
ribbed +
Body relief
tuberculate +, rugose +, muricate +  and smooth +
Body shape
less compressed-ellipsoid;fusiform +
Body some measurement
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Body variability
equaling +
Bract architecture
foliaceous +
Bract atypical quantity
3 (5) +
Bract length
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Bract quantity
5 +
Bract shape
ovate +  and lanceovate +
Bract width
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Bractlet quantity
1;15 +
Branch fragility or size
stout +
Branch shape
filiform +
Branch structure in adjective form
stigmatic +
Bristle architecture
barbellate +
Bristle relief
coarse +
Bristle shape
Plumose (?) +
Calyculus presence
absent +
Calyculus quantity
Of 1 (15+ bractlets) +
Corolla architecture
zygomorphic +, actinomorphic +  and (3-)5-merous +
Corolla coloration
yellow +
Cypsela architecture
monomorphic +
Cypsela shape
tapered +, beaked +, flattened +, obcompressed +, compressed +, prismatic +, fusiform +, ellipsoid +, columnar +  and clavate +
Distal leaf architecture
sessile +
Distribution
Alta. +, N.B. +, Ont. +, Sask. +, Ariz. +, Calif. +, Conn. +, D.C. +, Iowa +, Maine +, Md. +, Mass. +, Mo. +, Mont. +, N.J. +, N.Y. +, N.Dak. +, Ohio +, Oreg. +, Pa. +, Vt. +, Va. +, Europe +  and widely elsewhere +
Elevation
0–50(–500) m +
Embryo course
straight +
Face pubescence
glabrous +, hirtellous +  and pilosulous +
Face relief
transversely rugulose +  and muricate +
Filament fusion
distinct +
Floret architecture
ligulate +
Floret atypical quantity
5;15 +
Floret position
proximal +
Floret quantity
30;60 +
Floret reproduction
bisexual +
Fruit architecture
winged +  and beaked +
Fruit condition or texture
dry +
Fruit density
dispersed +
Habitat
Disturbed sites +
Head architecture
subsessile +
Head arrangement
in loose , corymbiform arrays +  and singly +
Head development
indeterminate +
Head reproduction
homogamous +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
Barbara Alongi +
Individual head architecture
each +  and sessile +
Inner cypsela coloration
reddish-brown +
Introduced
true +
Involucre diameter
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Involucre position relational
surrounding +
Involucre shape
ovoid;urceolate +
Leaf-blade atypical length
15 cm150 mm <br />0.15 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Leaf-blade atypical width
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Leaf-blade length
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Leaf-blade width
10mm;50mm +
Leaf architecture
sessile +  and petiolate +
Leaf arrangement
alternate +
Leaf position
cauline +  and basal +
Margin architecture
prickly +
Margin architecture or pubescence or shape
bristly-ciliate +
Margin architecture or shape
entire +
Margin shape
usually dentate +  and pinnately lobed +
Margin texture
scarious +
Number of lower taxa
0 +
Outer cypsela coloration
whitish +
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 duration
persistent +
Pappus some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Peduncle architecture
bracteate +
Peduncle pubescence
hispid +  and bristly +
Peduncle shape
inflated +
Peduncle some measurement
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Pericarp fragility
tough +
Pericarp width
thick +
Petal fusion
connate +
Phenology
Flowering May–Nov. +
Phyllary arrangement or course or shape
lance-linear +  and linear +
Phyllary atypical quantity
5 (8) +
Phyllary course or shape
sigmoid +
Phyllary duration
persistent +
Phyllary fusion
connate +  and distinct +
Phyllary quantity
8 +  and 13 +
Phyllary size
subequal +
Phyllary variability
equal +
Publication title
Folia Geobot. Phytotax. +
Publication year
1973 +
Receptacle architecture
epaleate +
Receptacle prominence or shape
flat +
Receptacle pubescence
glabrous +
Receptacle relief
pitted +
Receptacle shape
flat;convex +
Reference
None +
Rib quantity
5 +  and 10 +
Root texture
fibrous +
Scale architecture
barbellate +
Scale coloration
whitish +
Scale quantity
10 +  and 15 +
Scale shape
subulate +  and setiform +
Scale size
subequal +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
5 (15) +
Series quantity
1;2 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V19 439.xml +
Special status
Introduced +  and Illustrated +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem architecture
branched +
Stem orientation
erect +
Stem pubescence
hirsute +  and hispid or setose +
Stem quantity
1 +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
hirsute +
Style quantity
1 +
Style relief
papillate +
Synonyms
Undefined tribe Lactuceae +
Taxon family
Asteraceae +
Taxon name
Helminthotheca echioides +
Taxon parent
Helminthotheca +
Taxon rank
species +
Tip architecture or pubescence or shape
bristly-ciliate +
Tip pubescence
bristly +
Volume
Volume 19 +
Whole-organism architecture
taprooted +
Whole-organism duration
biennial +  and annual +
Whole-organism some measurement
10 cm100 mm <br />0.1 m <br /> (100 cm1,000 mm <br />1 m <br />) +
Whole organism growth form
shrub +  and subshrub +
X chromosome quantity
5 +