familyAsteraceae
tribeAsteraceae tribe Heliantheae
subtribeAsteraceae (tribe Heliantheae) subtribe Hymenopappinae
genusHymenopappus
speciesHymenopappus flavescens
varietyHymenopappus flavescens var. canotomentosus

Hymenopappus flavescens var. canotomentosus

A. Gray

Smithsonian Contr. Knowl. 5(6): 94. 1853.

John L. Strother
Treatment appears in FNA Volume 21. Treatment on page 316.

Lobes of basal leaves 1–2 mm wide, abaxial and adaxial faces ± equally hairy. Pappi 1–1.5 mm.


Phenology: Flowering Apr–May, Jul–Aug.
Habitat: Sandy or gravelly, often limestone soils
Elevation: 1100–2100+ m

Distribution

V21-780-distribution-map.gif

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

Discussion

Selected References

None.

Lower Taxa

None.
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Abaxial and adaxial face pubescence
Hairy (?) +
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
corymbiform +
Array development
indeterminate +  and determinate +
Author
John L. Strother +
Authority
A. Gray +
Band architecture
continuous +
Band quantity
1 +
Basal leaf architecture or shape
2-pinnate +
Basal leaf some measurement
6 cm60 mm <br />0.06 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Base shape
decurrent +
Blade architecture
compound +  and simple +
Blade shape
toothed +
Blade size or quantity
1-2+ times pinnately lobed ultimate margins usually entire +
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) +
Cauline leaf quantity
10 (?) +  and 50 (?) +
Corolla architecture
zygomorphic +
Corolla coloration
yellow +
Corolla some measurement
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Cypsela architecture
monomorphic +
Cypsela architecture or shape
12-16-ribbed +
Cypsela growth form
dimorphic +
Cypsela pubescence
villous +
Cypsela shape
obpyramidal +
Cypsela some measurement
3mm;4.5mm +
Disc-floret quantity
20 (40) +
Disc-floret reproduction
fertile +  and bisexual +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
N.Mex. +, Tex. +  and Mexico (Chihuahua) +
Elevation
1100–2100+ m +
Embryo course
straight +
Face pubescence
tomentose +, hairy +  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 +
Glomerule arrangement
singly +
Habitat
Sandy or gravelly, often limestone soils +
Head architecture
discoid +  and radiate +
Head architecture or arrangement
radiate +
Head architecture or shape
discoid +
Head arrangement
aggregated +
Head development
indeterminate +
Head quantity
15;100 +
Head reproduction
homogamous +  and heterogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Marjorie C. Leggitt +
Individual head architecture
each +  and sessile +
Involucre diameter
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Involucre position relational
surrounding +
Involucre shape
obconic;hemispheric +
Leaf architecture
petiolate +
Leaf arrangement
alternate +
Leaf position
cauline +  and basal +
Line quantity
2 +
Lobe atypical length
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Lobe atypical quantity
3 (5) +
Lobe length
3mm (15mm) +
Lobe quantity
5 (?) +
Lobe shape
deltate +  and filiform +
Lobe width
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 0.2 cm2 mm <br />0.002 m <br /> (?) +
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 quantity
of 12 +  and 22 orbiculate to spatulate scales +
Pappus some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Peduncle some measurement
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Pericarp fragility
tough +
Pericarp width
thick +
Peripheral floret presence
absent +
Peripheral floret quantity
In 1 (3+ series) +
Petal fusion
connate +
Phenology
Flowering Apr–May, Jul–Aug. +
Phyllary architecture
scarious-margined +
Phyllary coloration
Yellowish (?) +
Phyllary duration
persistent +
Phyllary fusion
distinct +
Phyllary length
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Phyllary life cycle
falling +
Phyllary quantity
5 +  and 13 +
Phyllary size
subequal +
Phyllary texture
Membranous (?) +
Phyllary width
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Publication title
Smithsonian Contr. Knowl. +
Publication year
1853 +
Ray-floret architecture
pistillate +
Ray-floret presence
absent +
Ray-floret quantity
8 (?) +
Ray-floret reproduction
fertile +
Receptacle architecture
epaleate +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle shape
convex;flat +
Reference
None +
Root texture
fibrous +
Scale quantity
16 +  and 22 +
Scale shape
orbiculate +  and spatulate +
Scale some measurement
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
1 (2) +
Series quantity
2;3 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21 780.xml +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem orientation
erect +
Stem shape
scapiform +
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
Hymenopappus flavescens var. canotomentosus +
Taxon parent
Hymenopappus flavescens +
Taxon rank
variety +
Throat length
1-1.5 times lobes +
Throat shape
campanulate +
Throat some measurement
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Throat variability
equaling +
Tube length or size
longer +
Tube some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Ultimate margin shape
toothed +  and entire +
Volume
Volume 21 +
Whole-organism atypical some measurement
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
Whole-organism duration
biennial +
Whole-organism some measurement
30 cm300 mm <br />0.3 m <br /> (90 cm900 mm <br />0.9 m <br />) +
Whole organism growth form
tree +, shrub +  and subshrub +
X chromosome quantity
17 +