Canadanthus modestus

(Lindley) G. L. Nesom

Phytologia 77: 251. 1995.

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.

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.
... more about "Canadanthus modestus"
stipitate-glandular +, glabrate +  and more or less strigose +
stipitate-glandular +  and villous +
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +  and corymbiform +
indeterminate +  and determinate +
flat-topped +
Luc Brouillet +
(Lindley) G. L. Nesom +
auriculate-clasping +
decurrent +
not indurate +
Aster modestus +
1.6 cm16 mm <br />0.016 m <br /> (5 cm50 mm <br />0.05 m <br />) +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
5 cm50 mm <br />0.05 m <br /> (13 cm130 mm <br />0.13 m <br />) +
oblanceolate;oblanceolate or lanceolate +
reduced +
thin;10mm;30mm +
rugulose +  and muricate +
stipitate-glandular +
linear-lanceolate +
Great northern or western bog aster +  and aster modeste +
not 2-lipped +  and actinomorphic +
purplish-tinged +, whitish +  and pale-yellow +
ampliate +
beaked +, 2-ribbed +  and 5-ribbed +
compressed +  and obconic-fusiform +
fertile +  and bisexual +
fertile +  and bisexual +
Alta. +, B.C. +, Man. +, N.B. +, Ont. +, Sask. +, Yukon +, Que. +, Alaska +, Idaho +, Mich. +, Minn. +, Mont. +, N.Dak. +, Oreg. +  and Wash. +
0–1300+ m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Cold, wet soils, often ± calcareous, moist woodlands, often along streams, lake shores, alder thickets, open fields, cedar swamps, in montane and boreal forests +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
cylindro-campanulate +
1.2 cm12 mm <br />0.012 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
triangular +
entire +  and serrate +
less scabrous +  and stipitate-glandular +
2-carpellate +
stipitate-glandular +  and villous +
Flowering late summer–early fall. +
lanceolate +
1.1 cm11 mm <br />0.011 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
bearing subulate enations +, hairy +  and bristly +
concave;usually flat;conic +
exalbuminous +
Illustrated +  and Endemic +
ascending +  and erect +
appendaged +  and truncate +
papillate +  and smooth +
Aster major +, Aster modestus var. major +, Aster sayianus +, Aster unalaschensis var. major +  and Weberaster modestus +
Canadanthus modestus +
Canadanthus +
species +
100 cm1,000 mm <br />1 m <br /> (130 cm1,300 mm <br />1.3 m <br />) +
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
plant +  and colonial +