familyAsteraceae
tribeAsteraceae tribe Gnaphalieae
genusAntennaria
speciesAntennaria monocephala
subspeciesAntennaria monocephala subsp. monocephala

Antennaria monocephala subsp. monocephala

Randall J. Bayer
Illustrated
Synonyms: A. exilis Greene A. monocephala var. exilis (Greene) Hultén A. monocephala var. latisquamea Hultén A. monocephala subsp. philonipha A. nitens A. E. Porsild A. philonipha A. shumaginensis
Treatment appears in FNA Volume 19. Mentioned on page 390, 412, 415.
Please click on the illustration for a higher resolution version.
Illustrator: Yevonn Wilson-Ramsey

Copyright: Flora of North America Association

Dioecious (staminates and pistillates in equal frequencies in populations). Stems stipitate-glandular. Basal leaves narrowly spatulate to oblanceolate, mostly abaxially tomentose, adaxially green-glabrous to glabrescent, sometimes both gray-pubescent. 2n = 28.


Phenology: Flowering summer.
Habitat: Moist tundra, often on disturbed margins of solifluction lobes or on unstable, gravelly slopes
Elevation: 0–1800 m

Distribution

V19-673-distribution-map.gif

B.C., N.W.T., Yukon, Alaska, Russian Far East (Chukotka Peninsula)

Discussion

E. Hultén’s (1968) key distinctions between subsp. monocephala and subsp. philonipha are obscure and seemingly arbitrary (R. J. Bayer 1991). Antennaria exilis is a pubescent form of A. monocephala; complete intergradation occurs between the forms. Taxonomic recognition for the two forms does not seem warranted. Antennaria monocephala subsp. monocephala is the diploid progenitor of the apomictic clones that make up subsp. angustata, and a progenitor of the A. alpina agamic complex.

Selected References

None.

Lower Taxa

None.
... more about "Antennaria monocephala subsp. monocephala"
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2n chromosome quantity
28 +
Abaxial face pubescence
tomentose +
Adaxial face pubescence
gray-pubescent +, green-glabrescent +  and glabrous +
Anther base shape
tailed +
Anther dehiscence
introrse +
Anther fusion
connate +
Apex shape
obtuse;more or less truncate +
Apex texture
scarious +
Apical appendage shape
mostly ovate +  and lanceovate or linear +
Appendage pubescence
hirsute +
Appendage quantity
0 +
Appendage relief
papillate +
Array architecture
subcapitate +, racemiform +, paniculiform +  and corymbiform +
Array development
indeterminate +  and determinate +
Author
Randall J. Bayer +
Authority
de Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
Band architecture
continuous +
Band quantity
1 +
Basal leaf architecture
1-nerved +
Basal leaf length
0.9 cm9 mm <br />0.009 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Basal leaf pubescence
Gray-pubescent (?) +, Adaxially green-glabrous (?) +  and Glabrescent (?) +
Basal leaf shape
narrowly spatulate;oblanceolate +
Basal leaf width
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Base shape
decurrent +
Blade architecture
compound +  and simple +
Blade margin architecture or shape
entire +
Blade margin shape
denticulate +
Blade shape
spatulate;oblanceolate;spatulate;oblanceolate;linear;lanceolate;elliptic;cuneate +
Body architecture or shape
5-ribbed +, 3-ribbed +  and 2-ribbed +
Body relief
muriculate +, papillate +  and smooth +
Branch arrangement or course or shape
linear +
Branch structure in adjective form
stigmatic +
Bristle architecture
barbellulate +
Bristle quantity
12;20 +
Bristle shape
Plumose (?) +
Calyculus presence
absent +
Cauline leaf architecture
flagged +
Cauline leaf arrangement or course or shape
linear +
Cauline leaf some measurement
0.4 cm4 mm <br />0.004 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Corolla architecture
pistillate +  and staminate +
Corolla coloration
red +, yellow +  and white +
Corolla shape
narrowly tubular +  and filiform +
Corolla some measurement
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Cypsela architecture
monomorphic +
Cypsela pubescence
glabrous +
Cypsela shape
mostly ellipsoid +  and ovoid +
Cypsela some measurement
1mm;1.3mm +
Disc-floret architecture
pistillate +  and staminate +
Disc-floret quantity
20 (100) +
Disc floret architecture
staminate +
Disc floret reproduction
bisexual +
Distribution
B.C. +, N.W.T. +, Yukon +, Alaska +  and Russian Far East (Chukotka Peninsula) +
Elevation
0–1800 m +
Embryo course
straight +
Face pubescence
glabrous +
Face relief
papillate +
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
Moist tundra, often on disturbed margins of solifluction lobes or on unstable, gravelly slopes +
Head architecture or shape
discoid +
Head arrangement
singly +
Head development
indeterminate +
Head reproduction
homogamous +  and heterogamous +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Individual head architecture
each +  and sessile +
Involucre architecture
pistillate +  and staminate +
Involucre diameter
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Involucre position relational
surrounding +
Involucre shape
campanulate;cylindric +
Involucre some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Leaf architecture
sessile +  and petiolate +
Leaf arrangement
alternate +
Leaf position
cauline +  and basal +
Line quantity
2 +
Lobe atypical quantity
4 (5) +
Lobe quantity
5 (?) +
Lobe shape
rarely lanceovate +  and lanceolate +
Margin architecture or shape
entire +
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
pistillate +  and staminate +
Pappus duration
persistent +
Pappus life cycle
falling +
Pappus some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Pericarp fragility
tough +
Pericarp width
thick +
Petal fusion
connate +
Phenology
Flowering summer. +
Phyllary atypical quantity
12 (30) +
Phyllary coloration
Olivaceous (Black) +
Phyllary duration
persistent +
Phyllary fusion
distinct +
Phyllary presence
absent +
Phyllary size
unequal +
Phyllary size or width
narrow +
Phyllary texture
Medially herbaceous (Membranous or scarious) +
Phyllary variability
equal +
Publication title
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
Publication year
1838 +
Ray-floret presence
absent +
Receptacle architecture
epaleate +
Receptacle pubescence
bearing subulate enations +, hairy +  and bristly +
Receptacle relief
foveolate +
Receptacle shape
flat;convex or ovoid +
Reference
None +
Root texture
fibrous +
Seed architecture
exalbuminous +
Seed quantity
1 +
Sepal variability
modifed +
Series atypical quantity
5 (15) +
Series quantity
3;6 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V19 673.xml +
Special status
Illustrated +
Stamen arrangement
alternate +
Stamen atypical quantity
4 (5) +
Stamen quantity
5 +
Stem orientation
erect +
Stem pubescence
stipitate-glandular +
Stolon some measurement
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Style-branch architecture
appendaged +  and truncate +
Style architecture
2-branched +
Style pubescence
glabrous +
Style quantity
1 +
Style relief
papillate +
Synonyms
A. exilis +, A. monocephala var. exilis +, A. monocephala var. latisquamea +, A. monocephala subsp. philonipha +, A. nitens +, A. philonipha +  and A. shumaginensis +
Taxon family
Asteraceae +
Taxon name
Antennaria monocephala subsp. monocephala +
Taxon parent
Antennaria monocephala +
Taxon rank
subspecies +
Tip shape
mucronate +
Volume
Volume 19 +
Whole-organism atypical some measurement
25 cm250 mm <br />0.25 m <br /> (70 cm700 mm <br />0.7 m <br />) +
Whole-organism duration
perennial +
Whole-organism reproduction
dioecious +
Whole-organism some measurement
4 cm40 mm <br />0.04 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Whole organism atypical some measurement
25 cm250 mm <br />0.25 m <br /> (70 cm700 mm <br />0.7 m <br />) +
Whole organism growth form
plant +
Whole organism some measurement
5cm (13cm) +
X chromosome quantity
14 +