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FNA | Family List | FNA Vol. 19, 20 and 21 | Asteraceae | Antennaria

27a. Antennaria rosea Greene subsp. arida (E. E. Nelson) R. J. Bayer, Brittonia. 41: 57. 1989.

Desert pussytoes

Antennaria arida E. E. Nelson, Bot. Gaz. 27: 210. 1899; A. arida subsp. viscidula E. E. Nelson; A. scariosa E. E. Nelson; A. viscidula (E. E. Nelson) A. Nelson ex Rydberg

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).

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

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


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