familyAsteraceae
tribeAsteraceae tribe Vernonieae
genusVernonia
speciesVernonia glauca

Vernonia glauca

(Linnaeus) Willdenow

Sp. Pl. 3: 1633. 1803.

John L. Strother
Endemic
Basionym: Serratula glauca Linnaeus Sp. Pl. 2: 818. 1753
Treatment appears in FNA Volume 19. Treatment on page 209. Mentioned on page 207.

Plants 6–10+ dm. Stems sparsely appressed-puberulent, glabrescent. Leaves mostly cauline; blades lanceolate to oblanceolate, 10–15 (–18+) cm × 30–45 (–70+) mm, l/w = 2.5–3.5 (–4), abaxially scabrellous (hairs awl-shaped), resin-gland-dotted or not, adaxially glabrous or sparsely puberulent. Heads in corymbiform to paniculiform arrays. Peduncles 2–35 mm. Involucres ± hemispheric, 5–8 × 7–8 mm. Phyllaries 40–60 in 5–6 series, sparsely puberulent to tomentulose, glabrescent, margins ciliolate, the outer lance-deltate to subulate, 1–3 mm, inner oblong, 4–7+ mm, tips acuminate to subulate or filiform. Florets 30–45+. Cypselae 3–4 mm; pappi stramineous to whitish, outer subulate scales or bristles 30, 0.5–1.5+ mm, intergrading with 30+, 6–8 mm inner subulate scales or bristles. 2n = 34.


Phenology: Flowering Jul–Sep.
Habitat: Dry fields, marshes
Elevation: 10–400 m

Distribution

V19-255-distribution-map.gif

Ala., Del., D.C., Ga., Md., Mass., N.J., N.C., Pa., S.C., Va.

Discussion

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.

... more about "Vernonia glauca"
RDF feed
2n chromosome quantity
34 +
Abaxial face pubescence
resin-gland-dotted +, glabrous +, glabrate +, tomentose +  and pannose +
Abaxial face relief
scabrellous +
Adaxial face pubescence
resin-gland-dotted +  and glabrate +
Adaxial face relief
scabrellous +
Anther base shape
sagittate +
Anther dehiscence
introrse +
Anther fusion
connate +
Apex shape
acute;attenuate +
Apex texture
scarious +
Apical appendage shape
ovate +  and lanceolate +
Appendage pubescence
hirsute +
Appendage quantity
0 +
Appendage relief
papillate +
Array architecture
corymbiform +  and paniculiform +
Array development
indeterminate +  and determinate +
Array diameter
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Author
John L. Strother +
Authority
(Linnaeus) Willdenow +
Band architecture
continuous +
Band quantity
1 +
Base shape
cuneate +
Basionyms
Serratula glauca +
Blade architecture
compound +  and simple +
Blade atypical l/w
3.5 (4) +
Blade atypical length
15 cm150 mm <br />0.15 m <br /> (18 cm180 mm <br />0.18 m <br />) +
Blade atypical width
4.5 cm45 mm <br />0.045 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Blade l/w
2.5 (3.5) +
Blade length
10 cm100 mm <br />0.1 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Blade pubescence
puberulent +, glabrous +, not +  and resin-gland-dotted +
Blade relief
scabrellous +
Blade shape
lanceolate;oblanceolate +
Blade width
3 cm30 mm <br />0.03 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
Body architecture
ribbed;nerved;ribbed;nerved;smooth +
Bract architecture
foliaceous +
Bract atypical quantity
6 (40) +
Bract quantity
40;100 +
Branch shape
lance-linear;more or less lanceolate +
Branch structure in adjective form
stigmatic +
Bristle length or size
longer +
Bristle position
inner +
Bristle quantity
20;40 +
Bristle shape
Subulate (?) +  and Setiform (?) +
Calyculus presence
absent +
Corolla architecture
zygomorphic +, actinomorphic +  and (3-)5-merous +
Corolla coloration
pink +  and purplish +
Cypsela architecture
monomorphic +
Cypsela architecture or shape
8-10-ribbed +
Cypsela course or shape
arcuate +
Cypsela pubescence
resin-gland-dotted +, more or less strigillose +  and hirtellous +
Cypsela shape
columnar +
Cypsela some measurement
3mm;4mm +
Disc-floret reproduction
fertile +  and bisexual +
Distribution
Ala. +, Del. +, D.C. +, Ga. +, Md. +, Mass. +, N.J. +, N.C. +, Pa. +, S.C. +  and Va. +
Elevation
10–400 m +
Embryo course
straight +
Face coloration
gland-dotted +
Face pubescence
sparsely strigillose +  and tomentose +
Filament fusion
distinct +
Floret architecture
pistillate +, staminate +  and neuter +
Floret atypical quantity
30;65 +
Floret position
proximal +
Floret quantity
30;45 +
Floret reproduction
bisexual +
Fruit architecture
winged +  and beaked +
Fruit condition or texture
dry +
Fruit density
dispersed +
Glomerule arrangement
singly +
Habitat
Dry fields, marshes +
Head architecture
pedunculate +
Head architecture or shape
discoid +
Head arrangement
in usually determinate , rarely indeterminate , arrays +  and singly +
Head development
indeterminate +
Head reproduction
homogamous +
Illustration copyright
Flora of North America Association +
Illustrator
Bee F. Gunn +
Individual head architecture
each +  and sessile +
Inner bristle shape
subulate +
Inner phyllary pubescence or texture
chartaceous +
Inner phyllary shape
Oblong (?) +
Inner phyllary some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Inner scale shape
subulate +
Involucre diameter
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Involucre length
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Involucre position relational
surrounding +
Involucre shape
hemispheric +
Involucre width
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Leaf architecture
petiolate +  and sessile +
Leaf arrangement
alternate +
Leaf position
cauline +
Lobe arrangement or course or shape
lance-linear +
Lobe quantity
5 (?) +
Lobe variability
equal +
Margin architecture or shape
entire +
Margin pubescence
ciliolate +
Margin shape
toothed +
Number of lower taxa
0 +
Outer bristle quantity
30 (?) +
Outer bristle shape
subulate +
Outer bristle some measurement
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Outer phyllary shape
lance-deltate +  and subulate +
Outer phyllary some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Outer quantity
20;30 +
Outer scale shape
subulate +
Outer scale some measurement
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
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 or relief
erose +
Pappus coloration
stramineous +  and whitish +
Pappus duration
persistent +
Peduncle some measurement
0.2 cm2 mm <br />0.002 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Pericarp fragility
tough +
Pericarp width
thick +
Petal fusion
connate +
Phenology
Flowering Jul–Sep. +
Phyllary duration
persistent +
Phyllary fusion
distinct +
Phyllary pubescence
glabrescent +, sparsely puberulent +  and tomentulose +
Phyllary quantity
40 +  and 60 +
Phyllary size
unequal +
Phyllary texture
Herbaceous (Chartaceous) +
Publication title
Sp. Pl. +
Publication year
1803 +
Ray-floret presence
absent +
Receptacle architecture
epaleate +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle shape
flat;convex +
Reference
None +
Root texture
fibrous +
Scale length or size
longer +
Scale position
inner +
Scale shape
subulate +  and setiform +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
5 (15) +
Series quantity
5;6 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V19 255.xml +
Special status
Endemic +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem orientation
prostrate +  and ascending +
Stem pubescence
glabrescent +  and appressed-puberulent +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
hirsutulous +
Style quantity
1 +
Style relief
ringed +
Synonyms
Compositae +
Taxon family
Asteraceae +
Taxon name
Vernonia glauca +
Taxon parent
Vernonia +
Taxon rank
species +
Tip shape
acuminate +  and subulate or filiform +
Tube length or size
longer +
Volume
Volume 19 +
Whole-organism duration
perennial +
Whole organism growth form
plant +
Whole organism some measurement
6dm (10dm) +
X chromosome quantity
17 +