Antennaria friesiana subsp. neoalaskana

(A. E. Porsild) R. J. Bayer & Stebbins

Canad. J. Bot. 71: 1596. 1993.

Common names: Frost boil or outcrop pussytoes
Endemic
Basionym: Antennaria neoalaskana A. E. Porsild Sargentia 4: 71. 1943
Treatment appears in FNA Volume 19. Treatment on page 414. Mentioned on page 390, 413, 415.
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Dioecious (staminates and pistillates in equal frequencies in populations). Plants 7.5–14 cm. Stolons 1–4 cm. Cauline leaves 4–20 mm. Heads 2–6. Involucres: staminate 4–6.5 mm; pistillate 7–8 mm. Corollas: staminate 2.5–3 mm; pistillate 3–4.5 mm. Cypselae 1.2–1.8 mm; pappi: staminate 3–4 mm; pistillate 3.5–5 mm. 2n = 56.


Phenology: Flowering summer.
Habitat: Arctic and alpine tundra, on dry rocky outcrops, fell fields, or gravelly frost boils
Elevation: 600–1500 m

Discussion

Subspecies neoalaskana is dioecious (sexual) and occurs from the eastern Brooks Range, Alaska, to the Richardson Mountains and into the central MacKenzie Mountains, on the Yukon-Northwest Territories boundary (R. J. Bayer 1993). It intergrades somewhat with the other two subspecies of Antennaria friesiana; it can be separated from other arctic members of Antennaria because it is dioecious and has 2–6 heads and well-developed stolons. It is a likely progenitor of the A. alpina complex.

Selected References

None.

Lower Taxa

None.
green-glabrescent +  and gray-pubescent +
obtuse;more or less truncate +
scarious +
mostly ovate +  and lanceovate or linear +
indeterminate +  and determinate +
Randall J. Bayer +
(A. E. Porsild) R. J. Bayer & Stebbins +
1.1 cm11 mm <br />0.011 m <br /> (3 cm30 mm <br />0.03 m <br />) +
narrowly spatulate;oblanceolate +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
decurrent +
Antennaria neoalaskana +
compound +  and simple +
spatulate;oblanceolate;spatulate;oblanceolate;linear;lanceolate;elliptic;cuneate +
5-ribbed +, 3-ribbed +  and 2-ribbed +
muriculate +, papillate +  and smooth +
0.4 cm4 mm <br />0.004 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Frost boil or outcrop pussytoes +
pistillate +  and staminate +
red +, yellow +  and white +
narrowly tubular +  and filiform +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
papillate +
mostly ellipsoid +  and ovoid +
pistillate +  and staminate +
N.W.T. +, Yukon +  and Alaska. +
600–1500 m +
papillate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Arctic and alpine tundra, on dry rocky outcrops, fell fields, or gravelly frost boils +
in corymbiform , paniculiform , racemiform or subcapitate , arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
pistillate +  and staminate +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
campanulate;cylindric +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
rarely lanceovate +  and lanceolate +
2-carpellate +
pistillate +  and staminate +
persistent +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering summer. +
Canad. J. Bot. +
bearing subulate enations +, hairy +  and bristly +
flat;convex or ovoid +
exalbuminous +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
appendaged +  and truncate +
papillate +
Compositae +
Antennaria friesiana subsp. neoalaskana +
Antennaria friesiana +
subspecies +
mucronate +
25 cm250 mm <br />0.25 m <br /> (70 cm700 mm <br />0.7 m <br />) +
4 cm40 mm <br />0.04 m <br /> (25 cm250 mm <br />0.25 m <br />) +
25 cm250 mm <br />0.25 m <br /> (70 cm700 mm <br />0.7 m <br />) +