familyAsteraceae
tribeAsteraceae tribe Heliantheae
subtribeAsteraceae (tribe Heliantheae) subtribe Pectidinae
genusThymophylla
speciesThymophylla aurea
varietyThymophylla aurea var. polychaeta

Thymophylla aurea var. polychaeta

(A. Gray) Strother

Sida 11: 376. 1986.

John L. Strother
Basionym: Hymenatherum polychaetum A. Gray Smithsonian Contr. Knowl. 3(5): 116. 1852
Synonyms: Dyssodia aurea var. polychaeta (A. Gray) M. C. Johnston Dyssodia polychaeta (A. Gray) B. L. Robinson Thymophylla polychaeta (A. Gray) Small
Treatment appears in FNA Volume 21. Treatment on page 244.

Plants to 30 cm. Peduncles 20–70 mm. Pappi of 18–20, 3–5-aristate scales 2–3 mm. 2n = 16.


Phenology: Flowering late summer.
Habitat: Grasslands and desert scrub-lands
Elevation: 1000–1500+ m

Distribution

V21-603-distribution-map.gif

N.Mex., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Durango)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Thymophylla aurea var. polychaeta"
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2n chromosome quantity
16 +
Abaxial face pubescence
puberulent +  and glabrous +
Anther base shape
not tailed +, rounded +  and obtuse +
Anther dehiscence
introrse +
Anther fusion
connate +
Anther theca coloration
darkened +  and 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
spiciform +, racemiform +, paniculiform +  and corymbiform +
Array development
indeterminate +  and determinate +
Author
John L. Strother +
Authority
(A. Gray) Strother +
Band architecture
continuous +
Band quantity
1 +
Base shape
decurrent +
Basionyms
Hymenatherum polychaetum +
Blade architecture
compound +  and simple +
Blade shape
lobed +
Blade some measurement
1.5 cm15 mm <br />0.015 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Body architecture
winged;ribbed;winged;ribbed +
Body architecture or pubescence or relief
smooth +
Body relief
tuberculate +  and rugose +
Bractlet quantity
0;1/2 +
Bractlet shape
subulate +
Branch arrangement or course or shape
linear +
Branch structure in adjective form
stigmatic +
Bristle architecture
barbellulate +  and barbellate +
Bristle quantity
20;50 +
Bristle shape
Plumose (?) +
Calyculus presence
absent +
Calyculus quantity
Of 1 (8 deltate to linear bractlets) +
Corolla architecture
zygomorphic +
Corolla coloration
yellow +  and bright-yellow +
Corolla some measurement
3 cm30 mm <br />0.03 m <br /> (?) +
Cypsela architecture
monomorphic +
Cypsela architecture or shape
beaked +
Cypsela growth form
dimorphic +
Cypsela pubescence
strigillose +  and glabrous +
Cypsela shape
cylindro-clavate +, obconic +  and obpyramidal +
Cypsela some measurement
3 +
Disc-floret quantity
30 (45) +
Disc-floret reproduction
fertile +  and bisexual +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
N.Mex. +, Tex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +  and Mexico (Durango) +
Elevation
1000–1500+ m +
Embryo course
straight +
Face pubescence
tomentose +, puberulent +, lanate +, floccose +, canescent +, arachnose +  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 +
Funnelform shape
cylindric +
Glomerule arrangement
singly +
Habitat
Grasslands and desert scrub-lands +
Head architecture
cymiform +, corymbiform +, discoid +  and radiate +
Head architecture or arrangement
radiate +
Head architecture or shape
discoid +
Head arrangement
singly +  and radiant +
Head development
indeterminate +
Head reproduction
homogamous +  and heterogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Individual head architecture
each +  and sessile +
Involucre diameter
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Involucre position relational
surrounding +
Involucre shape
obconic;campanulate +
Involucre some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Lamina length
4mm;6mm +
Lamina width
2mm;3mm +
Leaf architecture
sessile +  and petiolate +
Leaf arrangement
alternate +
Leaf position
cauline +
Line quantity
2 +
Lobe arrangement or course or shape
linear +
Lobe atypical quantity
3 (5) +
Lobe quantity
5 (13) +
Lobe shape
deltate +, spatulate +  and linear or filiform +
Margin architecture or shape
dentate to pinnatifid or palmatifid +  and entire +
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 +
Pappus duration
persistent +
Pappus life cycle
falling +
Pappus presence
absent +
Pappus shape
of 10(-20) distinct scales +  and coroniform +
Peduncle pubescence
puberulent +  and glabrous +
Peduncle some measurement
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 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. +
Phyllary atypical quantity
13 (22) +
Phyllary duration
persistent +
Phyllary fusion
distinct +
Phyllary life cycle
falling +
Phyllary quantity
12 +  and 15 +
Phyllary size
unequal +
Phyllary texture
Herbaceous (Chartaceous) +
Publication title
Sida +
Publication year
1986 +
Ray-floret architecture
pistillate +
Ray-floret presence
absent +
Ray-floret quantity
8 (12) +
Ray-floret reproduction
fertile +
Receptacle architecture
epaleate +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle relief
pitted +  and smooth +
Receptacle shape
convex +
Reference
None +
Root texture
fibrous +
Scale architecture or relief
erose +
Scale atypical quantity
10 (20) +
Scale fusion
distinct +
Scale quantity
10 +
Scale shape
18-20,3-5-aristate +
Scale some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
1 (2) +
Series quantity
1;2 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21 603.xml +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem architecture
branched +
Stem orientation
erect +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
hirsutulous +  and glabrous +
Style quantity
1 +
Style relief
papillate +
Synonyms
Dyssodia aurea var. polychaeta +, Dyssodia polychaeta +  and Thymophylla polychaeta +
Taxon family
Asteraceae +
Taxon name
Thymophylla aurea var. polychaeta +
Taxon parent
Thymophylla aurea +
Taxon rank
variety +
Throat shape
cylindric +
Tube height or length or size
shorter +
Tube length or size
much longer +
Ultimate margin shape
toothed +  and entire +
Volume
Volume 21 +
Whole-organism atypical some measurement
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Whole-organism coloration
green +
Whole-organism duration
annual +
Whole-organism pubescence
puberulent +  and glabrous +
Whole-organism some measurement
0 cm0 mm <br />0 m <br /> (20 cm200 mm <br />0.2 m <br />) +
Whole organism atypical some measurement
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Whole organism average some measurement
200cm (5cm) +
Whole organism growth form
plant +
Whole organism some measurement
0cm (30cm) +
X chromosome quantity
8 +