familyAsteraceae
tribeAsteraceae tribe Heliantheae
subtribeAsteraceae (tribe Heliantheae) subtribe Pectidinae
genusThymophylla
speciesThymophylla pentachaeta
varietyThymophylla pentachaeta var. belenidium

Thymophylla pentachaeta var. belenidium

(de Candolle) Strother

Sida 11: 377. 1986.

John L. Strother
Basionym: Dyssodia belenidium de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 7: 292. 1838
Synonyms: Dyssodia pentachaeta var. belenidium (de Candolle) Strother Dyssodia thurberi (A. Gray) B. L. Robinson
Treatment appears in FNA Volume 21. Treatment on page 242. Mentioned on page 240.

Leaves 10–20 mm overall, lobes 3–7, subequal. Peduncles 20–50 mm. Calyculi of 3–5 bractlets. Involucres obconic to campanulate, 4.5–6 × 4–5 mm. Phyllaries ca. 13, margins of outer distinct almost to bases, abaxial faces glabrous (margins ciliate). Disc-florets 50–70. Pappi usually of 10, 3-aristate scales, sometimes of 5 muticous scales alternating with 5, 3-aristate scales. 2n = 32 (Argentina).


Phenology: Flowering spring–summer.
Habitat: Sandy or rocky soils of desert washes and fans, commonly with limestone, often ruderal along roadways
Elevation: 500–2500+ m

Distribution

V21-593-distribution-map.gif

Ariz., Calif., Nev., N.Mex., Tex., Utah, Mexico, South America (Argentina)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Thymophylla pentachaeta var. belenidium"
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2n chromosome quantity
32 +
Abaxial face pubescence
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
(de Candolle) Strother +
Band architecture
continuous +
Band quantity
1 +
Base shape
decurrent +
Basionyms
Dyssodia belenidium +
Blade architecture
compound +  and simple +
Blade shape
lobed +
Blade some measurement
0.6 cm6 mm <br />0.006 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
Body architecture
winged;ribbed;winged;ribbed +
Body architecture or pubescence or relief
smooth +
Body relief
tuberculate +  and rugose +
Bractlet quantity
3;5 +
Bractlet shape
deltate +
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 orange-yellow +
Corolla some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 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
2mm;3mm +
Disc-floret quantity
50 (70) +
Disc-floret reproduction
fertile +  and bisexual +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
Ariz. +, Calif. +, Nev. +, N.Mex. +, Tex. +, Utah +, Mexico +  and South America (Argentina) +
Elevation
500–2500+ 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
Sandy or rocky soils of desert washes and fans, commonly with limestone, often ruderal along roadways +
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
Barbara Alongi +
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 length
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Involucre position relational
surrounding +
Involucre shape
obconic;campanulate +
Involucre some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Involucre width
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Lamina atypical length
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Lamina length
2mm;6mm +
Lamina width
1mm;3mm +
Leaf architecture
sessile +  and petiolate +
Leaf arrangement
opposite +
Leaf position
cauline +
Leaf some measurement
1 cm10 mm <br />0.01 m <br /> (?) +  and 2 cm20 mm <br />0.02 m <br /> (?) +
Line quantity
2 +
Lobe atypical quantity
3 (5) +
Lobe quantity
3 (7) +
Lobe shape
linear +  and filiform +
Lobe size
subequal +
Margin architecture or shape
dentate to pinnatifid or palmatifid +  and entire +
Margin character
1/5;lengths +
Margin fusion
distinct +
Margin quantity
1/5 (?) +
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
glabrous +  and puberulent +
Peduncle some measurement
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Pericarp fragility
tough +
Pericarp width
thick +
Peripheral floret presence
absent +
Peripheral floret quantity
In 1 (3+ series) +
Petal fusion
connate +
Phenology
Flowering spring–summer. +
Phyllary atypical quantity
13 (22) +
Phyllary duration
persistent +
Phyllary fusion
distinct +
Phyllary life cycle
falling +
Phyllary quantity
13 +
Phyllary size
unequal +
Phyllary texture
Herbaceous (Chartaceous) +
Publication title
Sida +
Publication year
1986 +
Ray-floret architecture
pistillate +
Ray-floret atypical quantity
8 (12) +
Ray-floret presence
absent +
Ray-floret quantity
12 (21) +
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 arrangement
alternating +
Scale atypical quantity
10 (20) +
Scale fusion
distinct +
Scale quantity
5 +  and 10 +
Scale shape
3-aristate +  and muticous +
Scale some measurement
0.1 cm1 mm <br />0.001 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 593.xml +
Special status
Illustrated +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem architecture
branched +
Stem orientation
spreading +  and erect +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
hirsutulous +  and glabrous +
Style quantity
1 +
Style relief
papillate +
Synonyms
Dyssodia pentachaeta var. belenidium +  and Dyssodia thurberi +
Taxon family
Asteraceae +
Taxon name
Thymophylla pentachaeta var. belenidium +
Taxon parent
Thymophylla pentachaeta +
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
15 cm150 mm <br />0.15 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Whole-organism coloration
less grayish +  and green +
Whole-organism duration
perennial +
Whole-organism pubescence
glabrous +, glabrescent +, usually puberulent +  and canescent +
Whole-organism some measurement
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Whole organism atypical some measurement
15 cm150 mm <br />0.15 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Whole organism average some measurement
200cm (5cm) +
Whole organism coloration
less grayish;green +
Whole organism growth form
subshrub +
Whole organism pubescence
glabrous +, glabrescent +, usually puberulent +  and canescent +
Whole organism some measurement
0cm (15cm) +
X chromosome quantity
8 +