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Antennaria argentea
Benth.
Family:
Asteraceae
Silver Pussytoes
Jaroenchai Phewban
FNA
Resources
Randall J. Bayer in Flora of North America (vol. 19, 20 and 21)
Dioecious. Plants
18-40 cm.
Stolons
none.
Basal leaves:
1-3-nerved, oblanceolate to elliptic, 20-50 × 4-15 mm, tips acute, faces ± gray-tomentose.
Cauline leaves
lanceolate, 15-45 mm, not flagged.
Heads
10-75 in pani-culiform arrays.
Involucres:
staminate 4-5 mm; pistillate 4-5 mm.
Phyllaries
(relatively broad) distally silvery white.
Corollas:
staminate 2.5-3.5 mm; pistillate 3-4 mm.
Cypselae
1-1.5 mm, glandular;
pappi:
staminate 4-5 mm; pistillate 3-4 mm.
2
n
= 28.
Flowering summer. Openings in dry coniferous forests; 600-2000 m; Calif., Nev., Oreg., Wash.
Antennaria argentea
is distinguished by its robustly stoloniferous habit and silvery white phyllaries.
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This project made possible by
National Science Foundation Award 1410069
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