familyAsteraceae
tribeAsteraceae tribe Heliantheae
subtribeAsteraceae (tribe Heliantheae) subtribe Gaillardiinae
genusPsilostrophe
speciesPsilostrophe tagetina

Psilostrophe tagetina

(Nuttall) Greene

Pittonia 2: 176. 1891.

John L. Strother
Illustrated
Basionym: Riddellia tagetina Nuttall Trans. Amer. Philos. Soc., n. s. 7: 371. 1841 (as tagetinae)
Synonyms: Psilostrophe tagetina var. grandiflora (Rydberg) Heiser Psilostrophe tagetina var. lanata A. Nelson
Treatment appears in FNA Volume 21. Treatment on page 455. Mentioned on page 454.
Please click on the illustration for a higher resolution version.
Illustrator: Yevonn Wilson-Ramsey

Copyright: Flora of North America Association

Biennials or perennials (rarely flowering first-year), 10–30 (–60+) cm. Stems arachno-villous (gray to gray-green). Heads in ± loose to crowded, corymbiform arrays. Peduncles (3–) 12–20 (–40) mm. Involucres 4–8 mm. Rays 3–4 (–6); laminae (3–) 7–14+ mm, spreading in fruit. Disc-florets 6–9 (–12). Cypselae usually glabrous, sometimes hirtellous and/or glanddotted; pappi of (4–) 6–8 elliptic or lanceolate to lance-subulate scales 2–3+ mm. 2n = 32.


Phenology: Flowering (Apr–)May–Sep(–Dec).
Habitat: Desert scrub, grasslands, limestone soils, saline flats, sandy soils
Elevation: (300–)600–2400 m

Distribution

V21-1143-distribution-map.gif

Ariz., N.Mex., Tex., Utah, Mexico (Chihuahua), Mexico (Coahuila)

Discussion

See comments under 6. Psilostrophe villosa.

Selected References

None.

Lower Taxa

None.
... more about "Psilostrophe tagetina"
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2n chromosome quantity
32 +
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 architecture or arrangement
compact +
Array development
indeterminate +  and determinate +
Author
John L. Strother +
Authority
(Nuttall) Greene +
Band architecture
continuous +
Band quantity
1 +
Base shape
decurrent +
Basionyms
Riddellia tagetina +
Blade architecture
compound +  and simple +
Blade shape
spatulate;oblanceolate or linear +
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 quantity
35;150 +
Bristle shape
Plumose (?) +
Calyculus presence
absent +
Calyculus quantity
Of 1 (15+ bractlets) +
Corolla architecture
zygomorphic +
Corolla coloration
yellow +  and orange +
Cypsela architecture
monomorphic +
Cypsela architecture or shape
striate-ribbed +
Cypsela growth form
dimorphic +
Cypsela pubescence
hirtellous +  and glabrous +
Cypsela shape
obcompressed +, cylindric +  and clavate or obpyramidal +
Disc-floret architecture
staminate +
Disc-floret atypical quantity
9 (12) +
Disc-floret quantity
6 (9) +
Disc-floret reproduction
fertile +  and bisexual +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
Ariz. +, N.Mex. +, Tex. +, Utah +, Mexico (Chihuahua) +  and Mexico (Coahuila) +
Elevation
(300–)600–2400 m +
Embryo course
straight +
Face pubescence
strigillose +  and arachno-villous +
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 architecture
corymbiform +
Glomerule arrangement
singly +
Habitat
Desert scrub, grasslands, limestone soils, saline flats, sandy soils +
Head architecture
glomerulate +
Head architecture or arrangement
radiate +
Head arrangement
cluster +
Head development
indeterminate +
Head reproduction
homogamous +  and heterogamous +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Individual head architecture
each +  and sessile +
Involucre diameter
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Involucre position relational
surrounding +
Involucre shape
cylindric;campanulate or obconic +
Involucre some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Lamina atypical some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Lamina orientation
spreading +
Lamina some measurement
0.7 cm7 mm <br />0.007 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Leaf architecture
sessile +  and petiolate +
Leaf arrangement
alternate +
Leaf position
cauline +, all +  and basal +
Line quantity
2 +
Lobe atypical quantity
3 (5) +
Lobe quantity
5 (?) +
Lobe shape
deltate +
Margin architecture or shape
entire +
Number of lower taxa
0 +
Outer phyllary fusion
connate +  and distinct +
Outer phyllary shape
ovate +, oblong +, oblanceolate +, linear +, lanceolate +  and elliptic +
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 +
Peduncle atypical some measurement
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Peduncle some measurement
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 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–Sep(–Dec). +
Phyllary duration
persistent +
Phyllary fusion
distinct +
Phyllary life cycle
falling +
Phyllary quantity
5 +  and 12 +
Phyllary size
unequal +
Phyllary texture
Herbaceous (Chartaceous) +
Publication title
Pittonia +
Publication year
1891 +
Ray-floret architecture
pistillate +
Ray-floret presence
absent +
Ray-floret quantity
1 (8) +
Ray-floret reproduction
fertile +
Ray atypical quantity
4 (6) +
Ray quantity
3;4 +
Receptacle architecture
epaleate +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle relief
pitted +  and smooth +
Receptacle shape
convex;flat +
Reference
None +
Root texture
fibrous +
Scale architecture or shape
entire +
Scale atypical quantity
4 (6) +
Scale presence
absent +
Scale quantity
6 +  and 8 +
Scale shape
lanceolate +  and lance-subulate +
Scale some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 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/V21 1143.xml +
Special status
Illustrated +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem architecture
branched +
Stem orientation
erect +  and spreading +
Stem pubescence
arachno-villous +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
hirsutulous +  and glabrous +
Style quantity
1 +
Style relief
papillate +
Synonyms
Psilostrophe tagetina var. grandiflora +  and Psilostrophe tagetina var. lanata +
Taxon family
Asteraceae +
Taxon name
Psilostrophe tagetina +
Taxon parent
Psilostrophe +
Taxon rank
species +
Throat shape
cylindric +
Tube height or length or size
shorter +
Tube shape
dilated +
Tube variability
equaling +
Ultimate margin shape
toothed +  and entire +
Volume
Volume 21 +
Whole-organism atypical some measurement
30 cm300 mm <br />0.3 m <br /> (60 cm600 mm <br />0.6 m <br />) +
Whole-organism duration
perennial +  and biennial +
Whole-organism some measurement
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Whole organism growth form
shrub +  and subshrub +
Whole organism some measurement
8cm (60cm) +
X chromosome quantity
16 +