familyAsteraceae
tribeAsteraceae tribe Heliantheae
subtribeAsteraceae (tribe Heliantheae) subtribe Ambrosiinae
genusParthenium
speciesParthenium ligulatum

Parthenium ligulatum

(M. E. Jones) Barneby

Leafl. W. Bot. 5: 20. 1947.

John L. Strother
Endemic
Basionym: Parthenium alpinum var. ligulatum M. E. Jones Contr. W. Bot. 13: 16. 1910
Treatment appears in FNA Volume 21. Treatment on page 21. Mentioned on page 20.

Perennials, 1–2 cm (underground caudices 2–5+ cm, branched; plants cespitose or forming mats). Leaf-blades oblanceolate to spatulate, 5–18+ × 1–2 (–4+) mm, margins entire, faces strigilloso-sericeous (gray) and obscurely glanddotted. Heads radiate, borne singly. Peduncles 0–4 mm. Phyllaries: outer 5 ± ovate, 2.5–3 mm, inner 5 ± orbiculate, 3–4+ mm. Pistillate florets 5; corolla laminae oval to elliptic, 1–2 mm, retuse. Disc-florets 15–25+. Cypselae oblanceoloid to pyriform, 3.5–4 mm; pappuslike enations 2, erect to spreading, ± subulate, 0.5–1 mm (a third, ± subulate element sometimes at apex of adaxial face). 2n = 36, 72.


Phenology: Flowering May–Jun.
Habitat: Pale shale or sandstone outcrops with pinyon-juniper
Elevation: 1800–2000 m

Distribution

V21-30-distribution-map.gif

Colo., Utah.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Parthenium ligulatum"
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2n chromosome quantity
72 +  and 36 +
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 +  and corymbiform +
Array development
indeterminate +  and determinate +
Author
John L. Strother +
Authority
(M. E. Jones) Barneby +
Band architecture
continuous +
Band quantity
1 +
Base shape
decurrent +
Basionyms
Parthenium alpinum var. ligulatum +
Blade architecture
compound +  and simple +
Blade arrangement or course or shape
linear +
Blade arrangement or shape
elliptic +
Blade shape
lobed;spatulate;rounded-deltate;ovate;obovate;oblanceolate;lyrate;lanceolate +
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) +
Corolla architecture
zygomorphic +
Corolla coloration
ochroleucous +
Corolla lamina shape
Retuse (Oval) +
Corolla lamina some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Corolla shape
tubular +  and more or less filiform +
Cypsela architecture
monomorphic +
Cypsela architecture or pubescence or relief
smooth +
Cypsela architecture or shape
beaked +
Cypsela growth form
dimorphic +
Cypsela pubescence
villous +, strigillose +, hispidulous +, glabrous +  and warty +
Cypsela relief
scabrellous +  and tuberculate +
Cypsela shape
oblanceoloid +  and pyriform +
Cypsela some measurement
3.5mm;4mm +
Disc-floret architecture
staminate +
Disc-floret position
enfolding +
Disc-floret quantity
15 (25) +
Disc floret architecture
staminate +
Disc floret quantity
5 (60) +
Disc floret reproduction
fertile +  and bisexual +
Distribution
Colo. +  and Utah. +
Elevation
1800–2000 m +
Embryo course
straight +
Enation orientation
Erect (Spreading) +
Enation quantity
2 +
Enation shape
subulate +  and pappuslike +
Enation some measurement
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Face pubescence
strigilloso-sericeous +
Filament fusion
distinct +
Floret architecture
pistillate +
Floret atypical quantity
5;15 +
Floret position
proximal +
Floret quantity
5 +
Floret reproduction
bisexual +
Fruit architecture
winged +  and beaked +
Fruit condition or texture
dry +
Fruit density
dispersed +
Glomerule arrangement
singly +
Habitat
Pale shale or sandstone outcrops with pinyon-juniper +
Head architecture or arrangement
radiate +
Head architecture or shape
disciform +
Head arrangement
singly +
Head development
indeterminate +
Head reproduction
homogamous +  and heterogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Linda Ann Vorobik +
Individual head architecture
each +  and sessile +
Inner phyllary quantity
5 +
Inner phyllary shape
Orbiculate (?) +
Inner phyllary some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Inner phyllary texture
less scarious +  and membranous +
Involucre diameter
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Involucre position relational
surrounding +
Involucre shape
hemispheric +
Lamina prominence
conspicuous +
Lamina shape
oblong +  and reniform or orbiculate or more or less coroniform +
Leaf-blade atypical width
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Leaf-blade length
0.5 cm5 mm <br />0.005 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Leaf-blade shape
oblanceolate;spatulate +
Leaf-blade width
1mm;2mm +
Leaf architecture
sessile +  and petiolate +
Leaf arrangement
alternate +
Leaf position
cauline +
Line quantity
2 +
Lobe atypical quantity
3 (5) +
Lobe quantity
5 (?) +
Lobe shape
deltate +
Margin architecture or shape
entire +
Number of lower taxa
0 +
Outer phyllary atypical quantity
5 (8) +
Outer phyllary growth form or texture
herbaceous +
Outer phyllary quantity
5 +
Outer phyllary shape
ovate +
Outer phyllary some measurement
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Outer phyllary texture
herbaceous +  and scarious +
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 position
peripheral +
Palea relief
papillate +
Palea shape
fimbrillate;cuneate;flabelliform +
Palea texture
membranous +  and scarious +
Pappus duration
persistent +
Pappus life cycle
falling +
Pappus presence
absent +
Peduncle some measurement
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Pericarp fragility
tough +
Pericarp width
thick +
Peripheral floret presence
absent +
Peripheral floret quantity
1 (10) +
Petal fusion
connate +
Phenology
Flowering May–Jun. +
Phyllary atypical quantity
10 (16) +
Phyllary duration
persistent +
Phyllary fusion
distinct +
Phyllary life cycle
falling +
Phyllary quantity
10 +
Phyllary shape
Lanceovate (Linear) +
Phyllary size
unequal +  and subequal +
Phyllary texture
Herbaceous (Chartaceous) +
Publication title
Leafl. W. Bot. +
Publication year
1947 +
Ray-floret architecture
pistillate +
Ray-floret atypical quantity
5 (8) +
Ray-floret presence
absent +
Ray-floret quantity
5 (?) +
Ray-floret reproduction
fertile +
Ray floret atypical quantity
5 (8) +
Ray floret quantity
5 (?) +
Ray floret reproduction
fertile +
Receptacle architecture
paleate +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle shape
flat;conic +
Reference
None +
Root texture
fibrous +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
8 (12) +
Series quantity
2 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21 30.xml +
Special status
Endemic +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem architecture
branched +
Stem orientation
erect +
Stigmatic papilla presence
absent +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
hirsutulous +  and glabrous +
Style quantity
1 +
Style relief
papillate +
Synonyms
Undefined (tribe Undefined) subtribe Ambrosieae +  and Undefined (tribe Undefined) subtribe Iveae +
Taxon family
Asteraceae +
Taxon name
Parthenium ligulatum +
Taxon parent
Parthenium +
Taxon rank
species +
Throat shape
campanulate +  and cylindric +
Tube architecture or function or pubescence
glandular +
Tube fragility or size
stout +
Tube length or size
longer +
Ultimate margin shape
toothed +  and entire +
Volume
Volume 21 +
Whole-organism duration
perennial +
Whole-organism some measurement
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Whole organism atypical some measurement
120 cm1,200 mm <br />1.2 m <br /> (400 cm4,000 mm <br />4 m <br />) +
Whole organism growth form
shrub +  and subshrub +
Whole organism some measurement
1cm (120cm) +
X chromosome quantity
9 +