Antennaria rosea |
Antennaria neglecta |
|||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Antennaire rosée, rosy everlasting, rosy pussytoes |
Antennaire négligée, field pussytoes |
|||||||||||||
Habit | Gynoecious (staminate plants uncommon). | Dioecious. | ||||||||||||
Plants | 4–30 cm. |
4–25 cm. |
||||||||||||
Stolons | 1–7 cm. |
2.5–18 cm. |
||||||||||||
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, narrowly spatulate to cuneate-oblanceolate, 15–65 × 6–18 mm, tips mucronate, faces abaxially tomentose, adaxially gray-pubescent (green-glabrescent with age). |
||||||||||||
Cauline leaves | linear, 6–36 mm, usually not flagged (apices acute to subulate or with lanceolate flags). |
linear, 1.5–25 mm, distal flagged. |
||||||||||||
Involucres | staminate unknown; pistillate 4–10 mm. |
staminate 4–7 mm; pistillate 6–10 mm. |
||||||||||||
Corollas | staminate unknown; pistillate 2.5–6 mm. |
staminate 2.7–5 mm; pistillate 4.5–6.5(–7) mm. |
||||||||||||
Phyllaries | distally brown, cream, gray, green, pink, red, white, or yellow (apices acute or erose-obtuse). |
distally white. |
||||||||||||
Heads | 3–20 in corymbiform arrays. |
(1–)2–8 in corymbiform to spiciform or racemiform arrays. |
||||||||||||
Cypselae | 0.7–1.8 mm, glabrous or papillate; pappi: staminate unknown; pistillate 3.5–6.5 mm. |
0.9–1.4 mm, minutely papillate; pappi: staminate 3.5–6.5 mm; pistillate 6–8.5(–9.5) mm. |
||||||||||||
2n | = 42, 56, (70). |
= 28. |
||||||||||||
Antennaria rosea |
Antennaria neglecta |
|||||||||||||
Phenology | Flowering early–mid spring. | |||||||||||||
Habitat | Plains, grasslands, pastures, and open woodlands | |||||||||||||
Elevation | 0–2500 m (0–8200 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
|
AR; CO; CT; DE; IA; IL; IN; KS; KY; MA; MD; ME; MI; MN; MO; MT; ND; NE; NH; NJ; NY; OH; OK; PA; RI; SD; VA; VT; WI; WV; WY; AB; BC; MB; NS; NT; ON; QC; SK
|
||||||||||||
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 neglecta is a sexual progenitor of both the A. howellii and A. parvifolia polyploid complexes and has one of the more widespread ranges among the amphimictic species in the genus in North America. Amphimicts generally have small ranges compared to those of the polyploid agamic complexes derived from them. Characteristic features of A. neglecta are its lashlike stolons that bear reduced leaves (except at the ends), flags on the distal cauline leaves, and basal leaves that are green-glabrescent with age (R. J. Bayer and G. L. Stebbins 1982). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||||||||||
Key |
|
|||||||||||||
Source | FNA vol. 19, p. 408. | FNA vol. 19, p. 403. | ||||||||||||
Parent taxa | Asteraceae > tribe Gnaphalieae > Antennaria | Asteraceae > tribe Gnaphalieae > Antennaria | ||||||||||||
Sibling taxa | ||||||||||||||
Subordinate taxa | ||||||||||||||
Synonyms | A. athabascensis, A. campestris, A. campestris var. athabascensis, A. chelonica, A. erosa, A. howellii var. athabascensis, A. howellii var. campestris, A. longifolia, A. lunellii, A. nebrascensis, A. neglecta var. athabascensis, A. neglecta var. campestris, A. neglecta var. simplex, A. parvula, A. wilsonii | |||||||||||||
Name authority | Greene: Pittonia 3: 281. (1898) | Greene: Pittonia 3: 173. (1897) | ||||||||||||
Web links |
|
|