familyAsteraceae
tribeAsteraceae tribe Heliantheae
subtribeAsteraceae (tribe Heliantheae) subtribe Gaillardiinae
genusPsathyrotes
speciesPsathyrotes annua

Psathyrotes annua

(Nuttall) A. Gray

Smithsonian Contr. Knowl. 5(6): 100. 1853.

John L. Strother
IllustratedEndemic
Basionym: Bulbostylis annua Nuttall Proc. Acad. Nat. Sci. Philadelphia 4: 22. 1848
Treatment appears in FNA Volume 21. Treatment on page 417.
Please click on the illustration for a higher resolution version.
Illustrator: Linda Ann Vorobik

Copyright: Flora of North America Association

Annuals (rarely persisting), 4–15 cm; glandular-pubescent, weakly tomentose, furfuraceous. Stems erect and spreading, much branched. Leaf-blades rounded-deltate to reniform, 4–18 × 6–26 mm, margins of some or all toothed. Peduncles 1–28 mm. Involucres turbinate, 6–9 mm. Phyllaries 13–19, outer falling or persistent, 5–6, lanceolate to lance-linear, tips erect, inner falling, 8–13, lance-linear, tips erect. Florets 10–21; corollas yellow, often purplish at tips, 4–5 mm. Cypselae 2–3 mm; pappi of 35–50, subequal bristles in 1 series, 1–4 mm. 2n = 34.


Phenology: Flowering spring–fall.
Habitat: Alkaline soils of washes and playas
Elevation: 800–2000 m

Distribution

V21-1044-distribution-map.gif

Ariz., Calif., Idaho, Nev., Utah.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Psathyrotes annua"
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2n chromosome quantity
34 +
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
spiciform +, racemiform +, paniculiform +  and corymbiform +
Array development
indeterminate +  and determinate +
Author
John L. Strother +
Authority
(Nuttall) A. Gray +
Band architecture
continuous +
Band quantity
1 +
Base shape
decurrent +
Basionyms
Bulbostylis annua +
Blade architecture
compound +  and simple +
Blade shape
suborbiculate;rounded-rhombic;suborbiculate;rounded-rhombic;reniform;rounded-deltate +
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 fusion
connate +  and distinct +
Bristle quantity
35;50 +
Bristle shape
Plumose (?) +
Bristle size
subequal +
Calyculus presence
absent +
Calyculus quantity
Of 1 (15+ bractlets) +
Corolla architecture
zygomorphic +
Corolla coloration
purplish +  and yellow +
Corolla some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Cypsela architecture
monomorphic +
Cypsela architecture or shape
beaked +
Cypsela growth form
dimorphic +
Cypsela pubescence
glabrate +  and hairy +
Cypsela shape
cylindro-fusiform +  and obpyramidal +
Cypsela some measurement
2mm;3mm +
Disc-floret architecture
staminate +
Disc-floret quantity
5 (250) +
Disc-floret reproduction
fertile +  and bisexual +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
Ariz. +, Calif. +, Idaho +, Nev. +  and Utah. +
Elevation
800–2000 m +
Embryo course
straight +
Face pubescence
furfuraceous +, glandular-pubescent +, tomentose +, pilose +  and lanate +
Filament fusion
distinct +
Floret architecture
pistillate +, staminate +  and neuter +
Floret atypical quantity
5;15 +
Floret position
proximal +
Floret quantity
10;21 +
Floret reproduction
bisexual +
Fruit architecture
winged +  and beaked +
Fruit condition or texture
dry +
Fruit density
dispersed +
Glomerule architecture
corymbiform +
Glomerule arrangement
singly +
Habitat
Alkaline soils of washes and playas +
Head architecture
discoid +  and radiate +
Head architecture or shape
discoid +
Head arrangement
singly +
Head development
indeterminate +
Head reproduction
homogamous +  and heterogamous +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
Linda Ann Vorobik +
Individual head architecture
each +  and sessile +
Inner phyllary arrangement or course or shape
lance-linear +
Inner phyllary life cycle
falling +
Inner phyllary quantity
8 +  and 13 +
Involucre diameter
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Involucre position relational
surrounding +
Involucre shape
turbinate +
Involucre some measurement
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Leaf-blade length
0.4 cm4 mm <br />0.004 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Leaf-blade shape
rounded-deltate;reniform +
Leaf-blade width
6mm;26mm +
Leaf architecture
petiolate +
Leaf arrangement
alternate +
Leaf position
cauline +  and basal +
Line quantity
2 +
Lobe atypical quantity
3 (5) +
Lobe orientation
erect +
Lobe quantity
5 (?) +
Lobe shape
deltate +
Margin architecture or shape
dentate to pinnatifid or palmatifid +  and entire +
Margin shape
toothed +
Number of lower taxa
0 +
Outer phyllary duration
persistent +
Outer phyllary fusion
connate +  and distinct +
Outer phyllary life cycle
falling +
Outer phyllary quantity
5 +  and 6 +
Outer phyllary shape
lanceolate +  and lance-linear +
Outer phyllary size
unequal +  and subequal +
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 some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Peduncle some measurement
0.1 cm1 mm <br />0.001 m <br /> (2.8 cm28 mm <br />0.028 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–fall. +
Phyllary duration
persistent +
Phyllary fusion
distinct +
Phyllary life cycle
falling +
Phyllary quantity
13 +  and 19 +
Phyllary size
unequal +
Phyllary texture
Herbaceous (Chartaceous) +
Publication title
Smithsonian Contr. Knowl. +
Publication year
1853 +
Ray-floret architecture
neuter +, styliferous +  and pistillate +
Ray-floret presence
absent +
Ray-floret quantity
1 (55) +
Ray-floret reproduction
sterile +  and fertile +
Receptacle architecture
epaleate +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle relief
pitted +  and smooth +
Receptacle shape
flat;convex +
Reference
None +
Root texture
fibrous +
Scale presence
absent +
Scale quantity
of 35 +  and 150 bristles +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
1 (2) +
Series quantity
1 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21 1044.xml +
Special status
Illustrated +  and Endemic +
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
Compositae +
Taxon family
Asteraceae +
Taxon name
Psathyrotes annua +
Taxon parent
Psathyrotes +
Taxon rank
species +
Throat shape
cylindric +
Tip orientation
erect +
Tube height or length or size
much shorter +
Tube shape
dilated +
Tube variability
equaling +
Ultimate margin shape
toothed +  and entire +
Volume
Volume 21 +
Whole-organism duration
annual +
Whole-organism pubescence
furfuraceous +, tomentose +  and glandular-pubescent +
Whole-organism some measurement
4 cm40 mm <br />0.04 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Whole organism growth form
shrub +  and subshrub +
Whole organism some measurement
3cm (160cm) +
X chromosome quantity
17 +