familyAsteraceae
tribeAsteraceae tribe Astereae
genusDieteria
speciesDieteria canescens
varietyDieteria canescens var. sessiliflora

Dieteria canescens var. sessiliflora

(Nuttall) D. R. Morgan & R. L. Hartman

Sida 20: 1396. 2003.

David R. Morgan
Endemic
Basionym: Dieteria sessiliflora Nuttall Trans. Amer. Philos. Soc., n. s. 7: 301. 1840
Synonyms: Machaeranthera canescens var. sessiliflora (Nuttall) B. L. Turner Machaeranthera sessiliflora (Nuttall) Greene
Treatment appears in FNA Volume 20. Treatment on page 400. Mentioned on page 399.

Annuals, biennials, or short-lived perennials. Stems 1+, erect, canescent, usually gland-dotted; branches ascending. Mid leaf-blades linear-lanceolate to linear. Peduncles 0 (heads sessile) or shorter than involucres. Involucres narrowly to broadly turbinate, 6–10 (–12) mm. Phyllaries in 4–7 series, spreading to reflexed, apices often canescent, stipitate-glandular. Ray-florets pistillate, fertile. Cypselae sparsely to moderately appressed-hairy.


Phenology: Flowering Aug–Oct.
Habitat: Flats, canyon slopes
Elevation: 600–1800 m

Distribution

V20-913-distribution-map.gif

Idaho.

Discussion

Variety sessiliflora is known only along the Snake River and its tributaries.

Selected References

None.

Lower Taxa

None.
... more about "Dieteria canescens var. sessiliflora"
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Anther base shape
not tailed +, rounded +  and obtuse +
Anther dehiscence
introrse +
Anther fusion
connate +
Apex fusion
distinct +
Apex growth form or texture
herbaceous +
Apex pubescence
stipitate-glandular +  and canescent +
Apex shape
acute;acuminate +
Apex size
subequal +
Apex some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Apex texture
scarious +
Apical appendage quantity
0 +
Apical appendage shape
usually triangular +  and linear +
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
David R. Morgan +
Authority
(Nuttall) D. R. Morgan & R. L. Hartman +
Band architecture
continuous +
Band quantity
1 +
Base pubescence
glabrous +
Base shape
decurrent +
Base texture
indurate +
Basionyms
Dieteria sessiliflora +
Blade architecture
1-nerved +
Blade shape
linear;oblanceolate;linear;oblanceolate;lanceolate;oblong;obovate;ovate +
Body architecture or pubescence or relief
smooth +
Body architecture or shape
ribbed +
Body relief
rugulose +  and muricate +
Branch arrangement or course or shape
linear +
Branch orientation
ascending +
Branch structure in adjective form
stigmatic +
Bristle architecture
barbellate +
Bristle coloration
white +  and tawny +
Bristle pappus duration
persistent +
Bristle quantity
40;50 +
Bristle shape
Attenuate (?) +
Calyculus presence
absent +
Corolla architecture
not 2-lipped +  and actinomorphic +
Corolla atypical some measurement
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Corolla coloration
yellow +, purple +, violet +, blue +  and white +
Corolla presence
absent +
Corolla some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Cypsela architecture
8-12-ribbed +  and smooth +
Cypsela architecture or shape
beaked +, 2-ribbed +  and 5-ribbed +
Cypsela growth form
dimorphic +
Cypsela pubescence
appressed-hairy +
Cypsela shape
flattened +, linear +  and obovoid +
Disc-floret quantity
15 (200) +
Disc-floret reproduction
fertile +  and bisexual +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distal base architecture or fixation
clasping +  and not clasping +
Distribution
Idaho. +
Elevation
600–1800 m +
Embryo course
straight +
Face pubescence
stipitate-glandular +, hairy +, glabrous +, canescent +  and puberulent +
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 +
Habitat
Flats, canyon slopes +
Head architecture or arrangement
radiate +
Head arrangement
singly +
Head development
indeterminate +
Head reproduction
heterogamous +  and homogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Bee F. Gunn +
Individual head architecture
each +  and sessile +
Involucre atypical some measurement
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Involucre length
0.6 cm6 mm <br />0.006 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Involucre position relational
surrounding +
Involucre shape
turbinate +
Involucre some measurement
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Involucre width
0.6 cm6 mm <br />0.006 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Lamina coloration
purple +, blue +  and white +
Lamina length
6mm;12mm +
Lamina width
1mm;3mm +
Leaf-blade atypical width
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Leaf-blade length
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Leaf-blade position
mid +
Leaf-blade shape
linear-lanceolate;linear or linear-oblanceolate +
Leaf-blade width
1.5mm;6mm +
Leaf architecture
petiolate +  and sessile +
Leaf arrangement
alternate +
Leaf position
cauline +, proximal +  and basal +
Line quantity
2 +
Lobe atypical quantity
4 (5) +
Lobe orientation
erect +
Lobe quantity
5 (?) +
Lobe shape
deltate +  and lanceolate +
Margin architecture or shape
serrate +, entire +  and irregularly dentate +
Mid leaf-blade shape
Linear-lanceolate (Linear) +
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 +
Peduncle coloration
gland-dotted +
Peduncle height or length or size
shorter +
Peduncle presence
absent +
Peduncle pubescence
stipitate-glandular +, canescent +, puberulent +  and glabrous +
Pericarp fragility
tough +
Pericarp width
thick +
Peripheral floret presence
absent +
Peripheral floret quantity
In 1 (3+ series) +
Petal fusion
connate +
Phenology
Flowering Aug–Oct. +
Phyllarie architecture
1-nerved +
Phyllarie duration
persistent +
Phyllarie fusion
distinct +
Phyllarie life cycle
falling +
Phyllarie orientation
spreading +  and reflexed +
Phyllarie quantity
25 (100) +
Phyllarie shape
lanceolate +  and linear +
Phyllarie size
unequal +
Phyllarie texture
Herbaceous (Chartaceous or scarious) +
Publication title
Sida +
Publication year
2003 +
Ray-floret architecture
pistillate +
Ray-floret presence
absent +
Ray-floret quantity
7 (60) +
Ray-floret reproduction
fertile +
Receptacle architecture
epaleate +
Receptacle diameter
2.5mm (5mm) +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle relief
pitted +
Receptacle shape
convex +
Reference
None +
Root texture
fibrous +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
1 (2) +
Series quantity
4;7 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V20 913.xml +
Special status
Endemic +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem architecture
branched +
Stem coloration
gland-dotted +
Stem orientation
erect +
Stem pubescence
canescent +
Style-branch appendage shape
lanceolate +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
glabrous +
Style quantity
1 +
Style relief
papillate +  and smooth +
Synonyms
Machaeranthera canescens var. sessiliflora +  and Machaeranthera sessiliflora +
Taxon family
Asteraceae +
Taxon name
Dieteria canescens var. sessiliflora +
Taxon parent
Dieteria canescens +
Taxon rank
variety +
Tube height or length or size
shorter +
Volume
Volume 20 +
Whole-organism architecture
taprooted +
Whole-organism duration
perennial +, short-lived +, biennial +  and annual +
Whole-organism some measurement
10 cm100 mm <br />0.1 m <br /> (100 cm1,000 mm <br />1 m <br />) +
Whole organism growth form
tree +, shrub +  and subshrub +
X chromosome quantity
4 +