familyAsteraceae
tribeAsteraceae tribe Senecioneae
genusTetradymia
speciesTetradymia axillaris
varietyTetradymia axillaris var. axillaris

Tetradymia axillaris var. axillaris

John L. Strother
Endemic
Treatment appears in FNA Volume 20. Treatment on page 632.

Peduncles and phyllaries glabrous, shiny green. Cypselae: hairs 6–8 (–10) mm. 2n = 60.


Phenology: Flowering spring.
Habitat: Usually sandy soils in shadscale scrub and sagebrush scrub
Elevation: 1200–2300 m

Distribution

V20-1425-distribution-map.gif

Calif., Nev., Utah.

Discussion

Selected References

None.

Lower Taxa

None.
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2n chromosome quantity
60 +
Anther base shape
not tailed +, rounded +  and obtuse +
Anther dehiscence
introrse +
Anther fusion
connate +
Apex relief
papillate +
Apex shape
truncate-penicillate;usually truncate;rounded-truncate +
Apex texture
scarious +
Apical appendage shape
usually ovate +  and lance-linear +
Appendage pubescence
hispidulous +
Appendage relief
papillate +
Array architecture
spiciform +, racemiform +, paniculiform +  and corymbiform +
Array development
indeterminate +  and determinate +
Author
John L. Strother +
Authority
A. Nelson +
Band architecture
continuous +
Band quantity
1 +
Base shape
decurrent +
Blade architecture
nerved +
Blade shape
linear;filiform narrowly lanceolate or oblanceolate +
Body architecture
winged;nerved;ribbed +
Bractlet quantity
1;15 +
Branch arrangement or course or shape
linear +
Branch structure in adjective form
stigmatic +
Bristle architecture
barbellulate +  and smooth +
Bristle pappus duration
persistent +
Bristle quantity
70;150 +
Calyculus presence
absent +
Calyculus quantity
Of 1 (15+ bractlets) +
Corolla architecture
not 2-lipped +
Corolla coloration
pale-yellow +
Corolla some measurement
0.75 cm7.5 mm <br />0.0075 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Cypsela architecture
monomorphic +
Cypsela architecture or shape
5-ribbed +
Cypsela pubescence
pilose +
Cypsela shape
prismatic +  and obconic or fusiform +
Cypsela some measurement
4.5mm;5.5mm +
Disc-floret quantity
4 (9) +
Disc-floret reproduction
fertile +  and bisexual +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
Calif. +, Nev. +  and Utah. +
Elevation
1200–2300 m +
Embryo course
straight +
Face pubescence
glabrescent +, lanate +  and tomentose +
Filament fusion
distinct +
Floret architecture
pistillate +, staminate +  and neuter +
Floret atypical quantity
5;15 +
Floret position
proximal +
Floret quantity
5;7 +
Floret reproduction
bisexual +
Fruit architecture
winged +  and beaked +
Fruit condition or texture
dry +
Fruit density
dispersed +
Habitat
Usually sandy soils in shadscale scrub and sagebrush scrub +
Hair atypical some measurement
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Hair some measurement
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Head architecture or shape
discoid +
Head arrangement
singly +
Head atypical quantity
3 (8) +
Head development
indeterminate +
Head quantity
1;3 +
Head reproduction
heterogamous +  and homogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Individual head architecture
each +  and sessile +
Involucre diameter
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Involucre position relational
surrounding +
Involucre shape
turbinate;campanulate +
Involucre some measurement
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Leaf architecture
sessile +
Leaf arrangement
alternate +
Leaf position
cauline +
Line quantity
2 +
Lobe atypical quantity
4 (5) +
Lobe orientation
recurved +
Lobe quantity
5 (?) +
Lobe shape
linear +  and lanceolate +
Margin architecture or shape
entire +
Margin texture
scarious +
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 presence
absent +
Pappus quantity
25 +
Pappus shape
subulate +  and setiform +
Peduncle coloration
green +
Peduncle pubescence
glabrous +
Peduncle reflectance
shiny +
Peduncle some measurement
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 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. +
Phyllarie coloration
green +
Phyllarie duration
persistent +
Phyllarie fusion
distinct +
Phyllarie growth form or texture
herbaceous +
Phyllarie life cycle
falling +
Phyllarie orientation
erect +
Phyllarie pubescence
glabrous +
Phyllarie quantity
5 (?) +
Phyllarie reflectance
shiny +
Phyllarie shape
ovate +
Phyllarie size
subequal +
Phyllarie texture
Herbaceous (Chartaceous) +
Phyllarie variability
equal +
Primary some measurement
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Publication title
Bot. Gaz. +
Publication year
1904 +
Ray-floret architecture
styliferous +, neuter +  and pistillate +
Ray-floret presence
absent +
Ray-floret quantity
In 1( (2+) series) +
Ray-floret reproduction
sterile +  and fertile +
Receptacle architecture
epaleate +
Receptacle prominence or shape
flat +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle relief
foveolate +
Receptacle shape
conic;usually flat;convex +
Reference
None +
Root texture
fibrous +
Scale coloration
white;stramineous +
Scale shape
subulate +  and setiform +
Scale some measurement
0.6 cm6 mm <br />0.006 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
Secondary atypical some measurement
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Secondary pubescence
glabrous +  and arachnose +
Secondary shape
filiform +  and clavate +
Secondary some measurement
0.2 cm2 mm <br />0.002 m <br /> (1.2 cm12 mm <br />0.012 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/V20 1425.xml +
Special status
Endemic +
Spine course
straight +
Spine orientation
squarrose +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem architecture or shape
spiny +
Stem orientation
spreading +  and erect +
Stem pubescence
pannose +
Stem quantity
1 +  and 5 +
Style-branch architecture
appendaged +  and truncate +
Style-branch structure in adjective form
stigmatic +
Style architecture
2-branched +
Style pubescence
glabrous +
Style quantity
1 +
Style relief
papillate +
Synonyms
Compositae +
Taxon family
Asteraceae +
Taxon name
Tetradymia axillaris var. axillaris +
Taxon parent
Tetradymia axillaris +
Taxon rank
variety +
Throat shape
dilated +
Tube length or size
longer +
Volume
Volume 20 +
Whole-organism duration
perennial +  and annual +
Whole organism growth form
shrub +
Whole organism some measurement
50cm (150cm) +
X chromosome quantity
30 +