familyAsteraceae
tribeAsteraceae tribe Astereae
genusXanthisma
sectionXanthisma sect. Havardii
speciesXanthisma viscidum

Xanthisma viscidum

(Wooton & Standley) D. R. Morgan & R. L. Hartman

Sida 20: 1410. 2003.

Ronald L. Hartman
Endemic
Basionym: Sideranthus viscidus Wooton & Standley Contr. U.S. Natl. Herb. 16: 180. 1913
Synonyms: Haplopappus havardii Waterfall Haplopappus viscidus (Wooton & Standley) S. F. Blake Machaeranthera havardii (Waterfall) Shinners Machaeranthera viscida (Wooton & Standley) R. L. Hartman
Treatment appears in FNA Volume 20. Treatment on page 393. Mentioned on page 384.

Annuals, 25–60 cm; taproots 2–8+ cm. Stems 1, branched, moderately stout to stout, not wiry, stipitate-glandular. Leaves: basal usually withering by flowering; cauline evenly spaced, obovate to oblanceolate or oblong, 5–30 × 2–15 mm, markedly reduced distally, margins coarsely serrate to dentate, teeth 4–7 per side, entire, faces densely stipitate-glandular. Peduncles densely stipitate-glandular, usually ebracteate. Involucres hemispheric, 8–10 × 13–18 mm. Phyllaries in 5–7 series, linear, 2–7 mm, apices narrowly obtuse to acuminate, faces stipitate-glandular. Ray-florets 14–18; corollas yellow, tubes 3–3.5 mm, laminae 2.8–3.5 × 1.5–2 mm. Disc-florets 20–30+; corollas 5.5–6 mm. Cypselae oblong to narrowly ellipsoid, 2.3–2.7 mm, 18–22-nerved, sparsely whitish-silky; pappi tawny, 5–6 mm, mostly equal. 2n = 8.


Phenology: Flowering summer–fall.
Habitat: Sandy soils on flats, roadsides
Elevation: 1000–1700 m

Distribution

V20-896-distribution-map.gif

N.Mex., Tex.

Discussion

Selected References

None.

Lower Taxa

None.
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2n chromosome quantity
8 +
Anther base shape
not tailed +, rounded +  and obtuse +
Anther dehiscence
introrse +
Anther fusion
connate +
Apex architecture
not bristle-tipped +
Apex fusion
distinct +
Apex growth form or texture
herbaceous +
Apex pubescence
stipitate-glandular +
Apex shape
narrowly obtuse;acuminate +
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
corymbiform +
Array development
indeterminate +  and determinate +
Author
Ronald L. Hartman +
Authority
(Wooton & Standley) D. R. Morgan & R. L. Hartman +
Band architecture
continuous +
Band quantity
1 +
Basal leaf life cycle
withering +
Base shape
decurrent +
Base texture
indurate +
Basionyms
Sideranthus viscidus +
Blade architecture
1-nerved +
Blade shape
lanceolate;oblanceolate or spatulate +
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 coloration
white +
Bristle pappus duration
persistent +
Bristle pappus some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Bristle shape
Filiform (?) +
Calyculus presence
absent +
Cauline leaf arrangement
spaced +
Cauline leaf length
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Cauline leaf shape
obovate +  and oblanceolate or oblong +
Cauline leaf size
reduced +
Cauline leaf width
0.2 cm2 mm <br />0.002 m <br /> (?) +  and 1.5 cm15 mm <br />0.015 m <br /> (?) +
Corolla architecture
not 2-lipped +  and actinomorphic +
Corolla coloration
yellow +
Corolla coloration or density
red-purple +
Corolla presence
absent +
Corolla some measurement
0.55 cm5.5 mm <br />0.0055 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Cypsela architecture
18-22-nerved +
Cypsela architecture or shape
asymmetric +
Cypsela growth form
dimorphic +
Cypsela pubescence
whitish-silky +
Cypsela shape
oblong +  and narrowly ellipsoid +
Cypsela some measurement
2.3mm;2.7mm +
Disc-floret quantity
20 (30) +
Disc-floret reproduction
fertile +  and bisexual +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
N.Mex. +  and Tex. +
Elevation
1000–1700 m +
Embryo course
straight +
Face pubescence
stipitate-glandular +
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
Sandy soils on flats, roadsides +
Head architecture
discoid +  and radiate +
Head architecture or arrangement
radiate +
Head arrangement
in corymbiform arrays +  and singly +
Head development
indeterminate +
Head reproduction
heterogamous +  and homogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Individual head architecture
each +  and sessile +
Involucre length
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Involucre position relational
surrounding +
Involucre shape
hemispheric +
Involucre width
1.3 cm13 mm <br />0.013 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Lamina length
2.8mm;3.5mm +
Lamina shape
ovate +  and orbiculate or depressed-elliptic +
Lamina size
unequal +
Lamina width
1.5mm;2mm +
Leaf-blade architecture or shape
dentate +  and serrate +
Leaf architecture
sessile +  and short-petiolate +
Leaf arrangement
alternate +
Leaf position
cauline +  and basal +
Line quantity
2 +
Lobe atypical quantity
4 (5) +
Lobe length
Spreading (?) +
Lobe quantity
5 (?) +
Lobe shape
triangular +
Margin architecture or shape
coarsely serrate +  and dentate +
Margin shape
2-pinnatifid +, pinnatifid +  and dentate +
Margin texture
scarious +
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 architecture
barbellate +
Pappus coloration
tawny +
Pappus duration
persistent +
Pappus quantity
30 +  and 90 +
Pappus shape
flattened +
Pappus some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Pappus variability
equal +
Peduncle architecture
ebracteate +
Peduncle pubescence
stipitate-glandular +
Pericarp fragility
tough +
Pericarp width
thick +
Peripheral floret presence
absent +
Peripheral floret quantity
In 1 (3+ series) +
Petal fusion
connate +
Phenology
Flowering summer–fall. +
Phyllarie architecture
1-nerved +
Phyllarie arrangement or course or shape
linear +
Phyllarie coloration
stramineous +
Phyllarie duration
persistent +
Phyllarie fixation or orientation
appressed +
Phyllarie fragility
stiff +
Phyllarie fusion
distinct +
Phyllarie life cycle
falling +
Phyllarie orientation
reflexed +, spreading +  and appressed +
Phyllarie position or shape
distal +
Phyllarie quantity
1/5 (1/2) +
Phyllarie shape
linear +  and narrowly oblong +
Phyllarie size
unequal +
Phyllarie some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Phyllarie texture
Rigid (?) +
Phyllarie width
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Pit border shape
laciniate +
Publication title
Sida +
Publication year
2003 +
Ray-floret architecture
pistillate +
Ray-floret presence
absent +
Ray-floret quantity
14 (18) +
Ray-floret reproduction
fertile +
Ray corolla coloration
yellow +
Receptacle architecture
epaleate +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle relief
pitted +
Receptacle shape
flat;convex +
Reference
None +
Root texture
fibrous +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
1 (2) +
Series prominence
defined +
Series quantity
5;7 +
Seta fusion
distinct +
Seta some measurement
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V20 896.xml +
Special status
Endemic +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem architecture
not wiry +  and branched +
Stem fragility or size
moderately stout +  and stout +
Stem orientation
sprawling +, spreading +  and erect +
Stem pubescence
stipitate-glandular +
Stem quantity
1 +
Strip coloration
green patch +
Strip size
expanded +
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
Haplopappus havardii +, Haplopappus viscidus +, Machaeranthera havardii +  and Machaeranthera viscida +
Taproot some measurement
2cm (8cm) +
Taxon family
Asteraceae +
Taxon name
Xanthisma viscidum +
Taxon parent
Xanthisma sect. Havardii +
Taxon rank
species +
Tooth architecture
not bristle-tipped +
Tooth architecture or shape
entire +
Tooth fusion
distinct +
Tooth quantity
4 (7) +
Tooth shape
terminating in stiff callosities +  and blunt +
Tooth some measurement
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Tube quantity
1/4 (1/3) +
Tube some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Volume
Volume 20 +
Wall architecture or shape
12-14-ribbed +
Wall prominence
discernible +
Wall width
thin +
Whole-organism architecture
taprooted +
Whole-organism duration
annual +
Whole-organism some measurement
25 cm250 mm <br />0.25 m <br /> (60 cm600 mm <br />0.6 m <br />) +
Whole organism growth form
subshrub +
X chromosome quantity
4 +