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.

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 +
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 />) +
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 +
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 +
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 />) +