Antennaria monocephala subsp. monocephala

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.
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.

AuthorRandall J. Bayer +
Authorityde Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
DistributionB.C. +, N.W.T. +, Yukon +, Alaska + and Russian Far East (Chukotka Peninsula). +
Elevation0–1800 m +
HabitatMoist tundra, often on disturbed margins of solifluction lobes or on unstable, gravelly slopes +
IllustrationPresent +
Illustration copyrightFlora of North America Association +
IllustratorYevonn Wilson-Ramsey +
PhenologyFlowering summer. +
Publication titlein A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
Publication year1838 +
ReferenceNone +
Source xmlhttps://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse grained fna xml/V19-20-21/V19 673.xml +
SynonymsA. exilis +, A. monocephala var. exilis +, A. monocephala var. latisquamea +, A. monocephala subsp. philonipha +, A. nitens +, A. philonipha + and A. shumaginensis +
Taxon familyAsteraceae +
Taxon nameAntennaria monocephala subsp. monocephala +
Taxon parentAntennaria monocephala +
Taxon ranksubspecies +
VolumeVolume 19 +