Antennaria rosea subsp. arida

(E. E. Nelson) R. J. Bayer

Brittonia 41: 57. 1989.

Common names: Desert pussytoes
Endemic
Basionym: Antennaria arida E. E. Nelson Bot. Gaz. 27: 210. 1899
Synonyms: Antennaria arida subsp. viscidula E. E. Nelson Antennaria scariosa (E. E. Nelson) A. Nelson ex Rydberg Antennaria viscidula
Treatment appears in FNA Volume 19. Treatment on page 409.

Plants 19–30 cm. Stolons 1.5–4.5 cm. Basal leaves spatulate to narrowly cuneate, 10–20 mm, faces gray-pubescent. Cauline leaves 9–26 mm. Heads usually 6–12. Involucres: pistillate 6.5–8 mm. Phyllaries distally white, pink, green, red, or brown. Corollas: pistillate 3.5–6 mm. Pappi: pistillate 5–6 mm. 2n = 42, 56, (70).


Phenology: Flowering summer.
Habitat: Dry to moist habitats, tundra, rock outcrops, fields, meadows, forests, savannas, and roadcuts, other similarly disturbed places
Elevation: 0–3800 m

Distribution

V19-663-distribution-map.gif

Alta., B.C., Nfld. and Labr. (Nfld.), Que., Sask., Yukon, Alaska, Ariz., Calif. (unconfirmed), Colo., Idaho, Maine, Mont., Nev., N.Mex., Oreg., S.Dak., Utah, Wash., Wyo.

Discussion

Subspecies arida is most closely related to Antennaria microphylla (R. J. Bayer 1989e), as shown by their similar morphologies.

Selected References

None.

Lower Taxa

None.
scarious +
mostly ovate +  and lanceovate or linear +
indeterminate +  and determinate +
Randall J. Bayer +
(E. E. Nelson) R. J. Bayer +
0.8 cm8 mm <br />0.008 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
decurrent +
Antennaria arida +
compound +  and simple +
spatulate;oblanceolate;spatulate;oblanceolate;linear;lanceolate;elliptic;cuneate +
5-ribbed +, 3-ribbed +  and 2-ribbed +
muriculate +, papillate +  and smooth +
0.9 cm9 mm <br />0.009 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
Desert pussytoes +
red +, yellow +  and white +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
papillate +
mostly ellipsoid +  and ovoid +
pistillate +  and staminate +
Alta. +, B.C. +, Nfld. and Labr. (Nfld.) +, Que. +, Sask. +, Yukon +, Alaska +, Ariz. +, Calif. (unconfirmed) +, Colo. +, Idaho +, Maine +, Mont. +, Nev. +, N.Mex. +, Oreg. +, S.Dak. +, Utah +, Wash. +  and Wyo. +
0–3800 m +
gray-pubescent +
papillate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry to moist habitats, tundra, rock outcrops, fields, meadows, forests, savannas, and roadcuts, other similarly disturbed places +
in corymbiform , paniculiform , racemiform or subcapitate , arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
campanulate;cylindric +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
rarely lanceovate +  and lanceolate +
2-carpellate +
persistent +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Flowering summer. +
bearing subulate enations +, hairy +  and bristly +
flat;convex or ovoid +
exalbuminous +
appendaged +  and truncate +
papillate +
Antennaria arida subsp. viscidula +, Antennaria scariosa +  and Antennaria viscidula +
Antennaria rosea subsp. arida +
Antennaria rosea +
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 />) +