familyAsteraceae
tribeAsteraceae tribe Astereae
genusCanadanthus
speciesCanadanthus modestus

Canadanthus modestus

(Lindley) G. L. Nesom

Phytologia 77: 251. 1995.

Luc Brouillet
Common names: Great northern or western bog aster aster modeste
IllustratedEndemic
Basionym: Aster modestus Lindley in W. J. Hooker, Fl. Bor.-Amer. 2: 8. 1834
Synonyms: Aster major (Hooker) Porter Aster modestus var. major (Hooker) Muenscher Aster sayianus Lessing ex Bongard Aster unalaschensis var. major Hooker Weberaster modestus
Treatment appears in FNA Volume 20. Treatment on page 459. Mentioned on page 488.
Please click on the illustration for a higher resolution version.
Illustrator: Yevonn Wilson-Ramsey

Copyright: Flora of North America Association

Plants openly colonial; rhizomes 1–3+ from base of each stem, herbaceous, ± woody with age. Stems 1, often glabrate proximally to ± villous, distally stipitate-glandular. Leaves: proximal scalelike, withering by flowering; blades (16–) 50–130 × (4–) 10–30 (–40) mm, reduced distally, thin, bases auriculate-clasping, margins ± scabrous to (distal) stipitate-glandular. Heads (1–) 2–40+. Peduncles sometimes villous, densely stipitate-glandular; bracts 1–2 (–3), linear-lanceolate, stipitate-glandular. Phyllaries squarrose, innermost appressed, apices often ± purplish, acuminate. Ray-floret laminae 7–11 (–15) × 0.8–1.2 mm. Disc-floret corollas 5–7 mm, glabrous, lobes 0.5–0.7 mm. Cypselae stramineous, stipitate; pappi surpassing or ± equaling disc corollas. 2n = 18.


Phenology: Flowering late summer–early fall.
Habitat: Cold, wet soils, often ± calcareous, moist woodlands, often along streams, lake shores, alder thickets, open fields, cedar swamps, in montane and boreal forests
Elevation: 0–1300+ m

Distribution

V20-1062-distribution-map.gif

Alta., B.C., Man., N.B., Ont., Sask., Yukon, Que., Alaska, Idaho, Mich., Minn., Mont., N.Dak., Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.

No values specified.

... more about "Canadanthus modestus"
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2n chromosome quantity
18 +
Abaxial face pubescence
stipitate-glandular +, glabrate +  and more or less strigose +
Adaxial face pubescence
stipitate-glandular +  and villous +
Anther base shape
not tailed +, rounded +  and obtuse +
Anther dehiscence
introrse +
Anther fusion
connate +
Apex coloration
purplish +
Apex fusion
distinct +
Apex growth form or texture
herbaceous +
Apex shape
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
paniculiform +  and corymbiform +
Array development
indeterminate +  and determinate +
Array shape
flat-topped +
Author
Luc Brouillet +
Authority
(Lindley) G. L. Nesom +
Band architecture
continuous +
Band quantity
1 +
Base architecture or fixation
auriculate-clasping +
Base shape
decurrent +
Base texture
not indurate +
Basionyms
Aster modestus +
Blade architecture
1-nerved +
Blade atypical length
1.6 cm16 mm <br />0.016 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Blade atypical width
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Blade length
5 cm50 mm <br />0.05 m <br /> (13 cm130 mm <br />0.13 m <br />) +
Blade shape
oblanceolate;oblanceolate or lanceolate +
Blade size
reduced +
Body architecture or pubescence or relief
smooth +
Body architecture or shape
ribbed +
Body relief
rugulose +  and muricate +
Bract atypical quantity
2 (3) +
Bract pubescence
stipitate-glandular +
Bract quantity
1;2 +
Bract shape
linear-lanceolate +
Branch arrangement or course or shape
linear +
Branch structure in adjective form
stigmatic +
Bristle architecture
barbellate +
Bristle coloration
cinnamon +
Bristle pappus duration
persistent +
Bristle quantity
20;35 +
Bristle shape
Attenuate (?) +
Bristle variability
equal +
Calyculus presence
absent +
Common name
Great northern or western bog aster +  and aster modeste +
Corolla architecture
not 2-lipped +  and actinomorphic +
Corolla coloration
purplish-tinged +, whitish +  and pale-yellow +
Corolla presence
absent +
Corolla size
ampliate +
Cypsela architecture
stipitate +
Cypsela architecture or shape
beaked +, 2-ribbed +  and 5-ribbed +
Cypsela coloration
stramineous +
Cypsela growth form
dimorphic +
Cypsela shape
compressed +  and obconic-fusiform +
Disc-floret corolla pubescence
glabrous +
Disc-floret corolla some measurement
5mm +  and 7mm +
Disc-floret quantity
40 (65) +
Disc-floret reproduction
fertile +  and bisexual +
Disc corolla variability
equaling +
Disc floret architecture
staminate +
Disc floret reproduction
fertile +  and bisexual +
Distribution
Alta. +, B.C. +, Man. +, N.B. +, Ont. +, Sask. +, Yukon +, Que. +, Alaska +, Idaho +, Mich. +, Minn. +, Mont. +, N.Dak. +, Oreg. +  and Wash. +
Elevation
0–1300+ m +
Embryo course
straight +
Face architecture
eglandular +
Face pubescence
strigose +
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
Cold, wet soils, often ± calcareous, moist woodlands, often along streams, lake shores, alder thickets, open fields, cedar swamps, in montane and boreal forests +
Head architecture or arrangement
radiate +
Head arrangement
singly +
Head atypical quantity
1 (2) +
Head development
indeterminate +
Head quantity
2;40 +
Head reproduction
heterogamous +  and homogamous +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Individual head architecture
each +  and sessile +
Inner phyllarie growth form or texture
herbaceous +
Innermost phyllarie fixation or orientation
appressed +
Involucre atypical length
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Involucre length
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Involucre position relational
surrounding +
Involucre shape
cylindro-campanulate +
Involucre width
1.2 cm12 mm <br />0.012 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Leaf architecture
sessile +
Leaf arrangement
alternate +
Leaf position
cauline +
Line quantity
2 +
Lobe atypical quantity
4 (5) +
Lobe coloration or density
purple +
Lobe orientation
erect +
Lobe quantity
5 (?) +
Lobe shape
triangular +
Lobe some measurement
? (?) +
Margin architecture or shape
entire +  and serrate +
Margin pubescence
less scabrous +  and stipitate-glandular +
Number of lower taxa
0 +
Outer phyllarie architecture
foliaceous +
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 position relational
surpassing +
Peduncle pubescence
stipitate-glandular +  and villous +
Pericarp fragility
tough +
Pericarp width
thick +
Peripheral floret presence
absent +
Peripheral floret quantity
In 1 (3+ series) +
Petal fusion
connate +
Phenology
Flowering late summer–early fall. +
Phyllarie architecture
1-nerved +
Phyllarie duration
persistent +
Phyllarie fusion
distinct +
Phyllarie life cycle
falling +
Phyllarie orientation
squarrose +
Phyllarie quantity
26 (60) +
Phyllarie shape
lanceolate +
Phyllarie size
subequal +
Phyllarie texture
Herbaceous (Chartaceous or scarious) +
Proximal leaf life cycle
withering +
Proximal leaf shape
Scale-like (?) +
Publication title
Phytologia +
Publication year
1995 +
Ray-floret architecture
pistillate +
Ray-floret lamina atypical length
1.1 cm11 mm <br />0.011 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Ray-floret lamina length
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Ray-floret lamina width
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Ray-floret presence
absent +
Ray-floret quantity
20 (65) +
Ray-floret reproduction
fertile +
Receptacle architecture
epaleate +
Receptacle prominence or shape
flat +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle relief
pitted +
Receptacle shape
concave;usually flat;conic +
Reference
None +
Rhizome growth form or texture
herbaceous +
Rhizome quantity
1 (3) +
Rhizome texture
woody +
Root texture
fibrous +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
1 (2) +
Series quantity
1;1;3;5 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V20 1062.xml +
Special status
Illustrated +  and Endemic +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem architecture
simple +
Stem orientation
ascending +  and erect +
Stem pubescence
stipitate-glandular +, villous +  and glabrate +
Stem quantity
1 +
Style-branch appendage shape
triangular +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
glabrous +
Style quantity
1 +
Style relief
papillate +  and smooth +
Synonyms
Aster major +, Aster modestus var. major +, Aster sayianus +, Aster unalaschensis var. major +  and Weberaster modestus +
Taxon family
Asteraceae +
Taxon name
Canadanthus modestus +
Taxon parent
Canadanthus +
Taxon rank
species +
Throat shape
tubular +
Tube height or length or size
shorter +
Volume
Volume 20 +
Whole-organism atypical some measurement
100 cm1,000 mm <br />1 m <br /> (130 cm1,300 mm <br />1.3 m <br />) +
Whole-organism duration
perennial +
Whole-organism some measurement
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
Whole organism growth form
plant +  and colonial +
X chromosome quantity
9 +