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

Psilostrophe villosa

Rydberg ex Britton

Man. Fl. N. States, 1006. 1901.

John L. Strother
Endemic
Synonyms: Psilostrophe tagetina var. cerifera (A. Nelson) B. L. Turner
Treatment appears in FNA Volume 21. Treatment on page 455. Mentioned on page 454.

Biennials or perennials (rarely flowering first-year), 10–45 (–60+) cm. Stems arachno-villous (gray to gray-green). Heads in ± crowded, corymbiform arrays. Peduncles (0.5–) 1–3 (–5+) mm. Involucres 4–5 (–7) mm. Rays (2–) 3 (–5); laminae 3–4 (–6) mm, spreading in fruit. Disc-florets 5–8 (–12). Cypselae usually glabrous, sometimes glanddotted; pappi of 4–6 lanceolate to lance-subulate scales 2.5–3+ mm. 2n = 32.


Phenology: Flowering (Mar–)May–Aug(–Oct).
Habitat: Grasslands, limestone soils, gypseous soils, caliche
Elevation: 300–900 m

Distribution

V21-1144-distribution-map.gif

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

Discussion

In trans-Pecos Texas, Psilostrophe villosa has been collected within 10 km or so of the Rio Grande; it probably occurs in Mexico. Within 100 km or so of the New Mexico-Texas border, P. villosa and P. tagetina intergrade; B. L. Turner et al. (1988) treated P. villosa as P. tagetina var. cerifera.

Selected References

None.

Lower Taxa

None.
... more about "Psilostrophe villosa"
RDF feed
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 arrangement
crowded +
Array development
indeterminate +  and determinate +
Author
John L. Strother +
Authority
Rydberg ex Britton +
Band architecture
continuous +
Band quantity
1 +
Base shape
decurrent +
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
glabrous +
Cypsela shape
obcompressed +, cylindric +  and clavate or obpyramidal +
Disc-floret architecture
staminate +
Disc-floret atypical quantity
8 (12) +
Disc-floret quantity
5 (8) +
Disc-floret reproduction
fertile +  and bisexual +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
Kans. +, N.Mex. +, Okla. +  and Tex. +
Elevation
300–900 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
Grasslands, limestone soils, gypseous soils, caliche +
Head architecture
glomerulate +
Head architecture or arrangement
radiate +
Head arrangement
cluster +
Head development
indeterminate +
Head reproduction
homogamous +  and heterogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Individual head architecture
each +  and sessile +
Involucre atypical some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
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 /> (0.5 cm5 mm <br />0.005 m <br />) +
Lamina atypical some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Lamina orientation
spreading +
Lamina some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 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
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Peduncle some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Pericarp fragility
tough +
Pericarp width
thick +
Peripheral floret presence
absent +
Peripheral floret quantity
In 1 (3+ series) +
Petal fusion
connate +
Phenology
Flowering (Mar–)May–Aug(–Oct). +
Phyllary duration
persistent +
Phyllary fusion
distinct +
Phyllary life cycle
falling +
Phyllary quantity
5 +  and 12 +
Phyllary size
unequal +
Phyllary texture
Herbaceous (Chartaceous) +
Publication title
Man. Fl. N. States, +
Publication year
1901 +
Ray-floret architecture
pistillate +
Ray-floret presence
absent +
Ray-floret quantity
1 (8) +
Ray-floret reproduction
fertile +
Ray atypical quantity
3 (5) +
Ray quantity
3 +
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 presence
absent +
Scale quantity
4 +  and 6 +
Scale shape
lanceolate +  and lance-subulate +
Scale some measurement
0.25 cm2.5 mm <br />0.0025 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 1144.xml +
Special status
Endemic +
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. cerifera +
Taxon family
Asteraceae +
Taxon name
Psilostrophe villosa +
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
45 cm450 mm <br />0.45 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 /> (45 cm450 mm <br />0.45 m <br />) +
Whole organism growth form
shrub +  and subshrub +
Whole organism some measurement
8cm (60cm) +
X chromosome quantity
16 +