familyAsteraceae
tribeAsteraceae tribe Astereae
genusAstranthium
speciesAstranthium robustum

Astranthium robustum

(Shinners) De Jong

Publ. Mus. Michigan State Univ., Biol. Ser. 2: 521. 1965.

Guy L. Nesom
Common names: Texas western-daisy
Endemic
Basionym: Astranthium integrifolium var. robustum Shinners Field & Lab. 18: 158. 1950
Treatment appears in FNA Volume 20. Treatment on page 204.
Revision as of 21:50, 29 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Annuals, taprooted. Stems usually 3–8, decumbent-ascending, sometimes 1, erect. Leaves: basal and proximal cauline 20–45 × 5–11 mm. Involucres 4–6.8 mm. Ray-florets 18–35; corolla laminae white or abaxially lavender, often drying pinkish, 8–13 mm. Disc-floret corollas 3.2–3.8 mm. Cypselae 1.4–2.1 × 0.7–1.2 mm, faces minutely, glandular-papillate-pebbly, uniformly sparsely to moderately glochidiate-hairy. 2n = 6.


Phenology: Flowering Mar–Jun.
Habitat: Disturbed sites in sandy or rocky soil, mesas, canyons, pine flats, roadsides, ditches
Elevation: 800–1400 m

Distribution

V20-454-distribution-map.gif

Tex.

Discussion

Astranthium robustum is known only from the trans-Pecos region.

Selected References

None.

Lower Taxa

None.

"narrower" is not a number."[" is not declared as a valid unit of measurement for this property."]" is not declared as a valid unit of measurement for this property.

... more about "Astranthium robustum"
RDF feed
2n chromosome quantity
6 +
Anther base shape
not tailed +, rounded +  and obtuse +
Anther dehiscence
introrse +
Anther fusion
connate +
Apex fusion
distinct +
Apex growth form or texture
herbaceous +
Apex size
subequal +
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
Guy L. Nesom +
Authority
(Shinners) De Jong +
Band architecture
continuous +
Band quantity
1 +
Base shape
decurrent +
Basionyms
Astranthium integrifolium var. robustum +
Blade architecture
1-nerved +
Blade atypical some measurement
8 cm80 mm <br />0.08 m <br /> (12 cm120 mm <br />0.12 m <br />) +
Blade shape
spatulate-obovate +
Blade some measurement
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
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 structure in adjective form
stigmatic +
Bristle architecture
barbellulate +  and barbellate +
Bristle pappus duration
persistent +
Calyculus presence
absent +
Common name
Texas western-daisy +
Corolla architecture
not 2-lipped +  and actinomorphic +
Corolla coloration
yellow +, white +  and with blue to purplish blue midstripe +
Corolla condition
drying +
Corolla lamina coloration
pinkish +, lavender +  and white +
Corolla lamina condition
drying +
Corolla lamina some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Corolla presence
absent +
Cypsela architecture
2-nerved +
Cypsela architecture or shape
beaked +, 2-ribbed +  and 5-ribbed +
Cypsela growth form
dimorphic +
Cypsela length
0.14 cm1.4 mm <br />0.0014 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
Cypsela shape
compressed +, obovoid +  and oblanceoloid-obovoid +
Cypsela width
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Disc-floret atypical quantity
200 (250) +
Disc-floret corolla some measurement
3.2mm +  and 3.8mm +
Disc-floret quantity
25 (200) +
Disc-floret reproduction
fertile +  and bisexual +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
Tex. +
Elevation
800–1400 m +
Embryo course
straight +
Face architecture or pubescence or relief
smooth +
Face pubescence
glochidiate-hairy +
Face relief
glandular-papillate-pebbly +
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
Disturbed sites in sandy or rocky soil, mesas, canyons, pine flats, roadsides, ditches +
Head architecture or arrangement
radiate +
Head arrangement
singly +
Head development
indeterminate +
Head reproduction
heterogamous +  and homogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Barbara Alongi +
Individual head architecture
each +  and sessile +
Involucre position relational
surrounding +
Involucre shape
hemispheric;campanulate +
Involucre some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.68 cm6.8 mm <br />0.0068 m <br />) +
Leaf architecture
petiolate +
Leaf arrangement
alternate +
Leaf length
2 cm20 mm <br />0.02 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
Leaf position
cauline +, proximal +  and basal +
Leaf width
0.5 cm5 mm <br />0.005 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Line quantity
2 +
Lobe atypical quantity
4 (5) +
Lobe orientation
spreading +
Lobe quantity
5 (?) +
Lobe shape
deltate +
Margin architecture or shape
entire +
Margin coloration
hyaline +
Margin shape
toothed +
Midnerve growth form or texture
thin-herbaceous +
Midnerve prominence
inconspicuous +
Midnerve shape
broadly oblanceolate +  and linear-lanceolate +
Midnerve size
subequal +
Midstripe coloration
blue +  and purplish blue +
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 shape
coroniform +
Pericarp fragility
tough +
Pericarp width
thick +
Peripheral floret presence
absent +
Peripheral floret quantity
In 1 (3+ series) +
Petal fusion
connate +
Phenology
Flowering Mar–Jun. +
Phyllarie duration
persistent +
Phyllarie fixation or orientation
appressed +
Phyllarie fusion
distinct +
Phyllarie life cycle
falling +
Phyllarie quantity
15 (30) +
Phyllarie size
unequal +
Phyllarie texture
Herbaceous (Chartaceous or scarious) +
Publication title
Publ. Mus. Michigan State Univ., Biol. Ser. +
Publication year
1965 +
Ray-floret architecture
pistillate +
Ray-floret atypical quantity
65 (85) +
Ray-floret presence
absent +
Ray-floret quantity
18 (35) +
Ray-floret reproduction
fertile +
Receptacle architecture
epaleate +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle relief
pitted +
Receptacle shape
conic +
Reference
None +
Root texture
fibrous +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
2 (3) +
Series quantity
2 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V20 454.xml +
Special status
Endemic +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem architecture
branched +
Stem orientation
erect +  and decumbent-ascending +
Stem pubescence
strigose +  and hirsuto-pilose +
Stem quantity
1 +, 3 +  and 8 +
Style-branch appendage shape
lanceolate-acute +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
glabrous +
Style quantity
1 +
Style relief
papillate +  and smooth +
Synonyms
Compositae +
Taxon family
Asteraceae +
Taxon name
Astranthium robustum +
Taxon parent
Astranthium +
Taxon rank
species +
Throat shape
tubular-funnelform +
Tube height or length or size
much shorter +
Volume
Volume 20 +
Whole-organism architecture
taprooted +
Whole-organism duration
annual +
Whole-organism some measurement
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +
Whole organism growth form
tree +, shrub +  and subshrub +
X chromosome quantity
5 +, 4 +  and 3 +