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

Hymenopappus flavescens var. flavescens

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

Lobes of basal leaves (1–) 2–6 mm wide, abaxial faces glabrous or less hairy than the adaxial. Pappi 0.5–1 (–1.2) mm.


Phenology: Flowering May–Sep.
Habitat: Sandy soils
Elevation: 1200–2100+ m

Distribution

V21-779-distribution-map.gif

Colo., Kans., N.Mex., Okla., Tex.

Discussion

Selected References

None.

Lower Taxa

None.
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Abaxial face pubescence
less hairy +  and glabrous +
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
Colo. +, Kans. +, N.Mex. +, Okla. +  and Tex. +
Elevation
1200–2100+ 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 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
0.2 cm2 mm <br />0.002 m <br /> (?) +  and 0.6 cm6 mm <br />0.006 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 atypical some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Pappus duration
persistent +
Pappus life cycle
falling +
Pappus presence
absent +
Pappus quantity
of 12 +  and 22 orbiculate to spatulate scales +
Pappus some measurement
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 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 May–Sep. +
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
Mem. Amer. Acad. Arts, n. s. +
Publication year
1849 +
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 779.xml +
Special status
Endemic +
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. flavescens +
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 +