Antennaria rosea |
Antennaria soliceps |
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Antennaire rosée, rosy everlasting, rosy pussytoes |
Charleston Mountain or Charleston pussytoes, Charleston Mountain pussytoes |
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Habit | Gynoecious (staminate plants uncommon). | Gynoecious (staminate plants unknown). | ||||||||||||
Plants | 4–30 cm. |
1–4 cm. |
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Stolons | 1–7 cm. |
0.5–2 cm. |
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Basal leaves | 1-nerved, 8–40 × 2–10 mm, spatulate, oblanceolate, or cuneate, tips mucronate, faces usually gray-pubescent, adaxial sometimes green-glabrous. |
1-nerved, spatulate, rhombic-spatulate, or cuneate, 4–13 × 2–8 mm, tips mucronate, faces densely gray-tomentose. |
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Cauline leaves | linear, 6–36 mm, usually not flagged (apices acute to subulate or with lanceolate flags). |
linear, 4–10 mm, distalmost flagged. |
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Involucres | staminate unknown; pistillate 4–10 mm. |
staminate unknown; pistillate 8–11 mm. |
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Corollas | staminate unknown; pistillate 2.5–6 mm. |
staminate unknown; pistillate 4–5.5 mm. |
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Phyllaries | distally brown, cream, gray, green, pink, red, white, or yellow (apices acute or erose-obtuse). |
distally white, light brown, dark brown, or olivaceous. |
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Heads | 3–20 in corymbiform arrays. |
usually borne singly, rarely 2–3 in corymbiform arrays. |
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Cypselae | 0.7–1.8 mm, glabrous or papillate; pappi: staminate unknown; pistillate 3.5–6.5 mm. |
1.5–1.8 mm, glabrous; pappi: staminate unknown; pistillate 5–6 mm. |
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2n | = 42, 56, (70). |
= ca. 168. |
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Antennaria rosea |
Antennaria soliceps |
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Phenology | Flowering summer. | |||||||||||||
Habitat | Talus areas on limestone ridge at treeline in the subalpine zone | |||||||||||||
Elevation | 3000–3400 m (9800–11200 ft) | |||||||||||||
Distribution |
AK; AZ; CA; CO; ID; ME; MI; MN; MT; ND; NM; NV; OR; SD; UT; WA; WY; AB; BC; MB; NL; NT; NU; ON; QC; SK; YT
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NV |
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Discussion | Subspecies 4 (4 in the flora). Antennaria rosea is the most widespread Antennaria of North America, occurring in dry to moist habitats from near sea level to the alpine zone. The A. rosea polyploid agamic complex is one of the more morphologically diverse complexes of North American Antennaria. It occurs from the western cordillera of North America from southern California, Arizona, and New Mexico north to subarctic Alaska and east to Greenland and, disjunctly, in the Canadian maritime provinces, eastern Quebec, and immediately north of and adjacent to Lake Superior (R. J. Bayer et al. 1991). Antennaria chilensis (including A. chilensis var. magellanica) is a Patagonian endemic that morphologically fits within the circumscription of A. rosea and may well be an amphitropical disjunct member of the complex. Antennaria rosea is taxonomically confusing; it includes agamospermous microspecies that have been recognized as distinct taxonomic species. Morphometric and isozyme analyses have demonstrated that the primary source of morphologic variability in the complex derives from six sexually reproducing progenitors, A. aromatica, A. corymbosa, A. pulchella, A. microphylla, A. racemosa, and A. umbrinella (R. J. Bayer 1989b, 1990b, 1990c). Additionally, three other sexually reproducing species, A. marginata, A. suffrutescens, and A. rosulata, may have contributed to the genetic complexity of the A. rosea complex (Bayer 1990b). Here, four reasonably distinct subspecies are recognized within the complex. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Antennaria soliceps is a high-polyploid apomict known only from limestone talus at treeline in the Spring (Charleston) Mountains, Nevada (R. J. Bayer and T. M. Minish 1993). It is probably most closely related to A. aromatica, an amphimictic species occurring in the northern Rockies, and is characterized by a cushion-plant growth form and heads borne singly (Bayer and Minish). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 19, p. 408. | FNA vol. 19, p. 410. | ||||||||||||
Parent taxa | Asteraceae > tribe Gnaphalieae > Antennaria | Asteraceae > tribe Gnaphalieae > Antennaria | ||||||||||||
Sibling taxa | ||||||||||||||
Subordinate taxa | ||||||||||||||
Name authority | Greene: Pittonia 3: 281. (1898) | S. F. Blake: Proc. Biol. Soc. Wash. 51: 7. (1938) | ||||||||||||
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