Antennaria parvifolia |
Antennaria neglecta |
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little-leaf pussytoes, Nuttall's pussytoes, small-leaf pussytoes |
Antennaire négligée, field pussytoes |
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Habit | Dioecious or gynoecious (staminate plants uncommon or in equal frequency as pistillates, respectively). | Dioecious. |
Plants | 2–8(–15) cm. |
4–25 cm. |
Stolons | 1–6 cm. |
2.5–18 cm. |
Basal leaves | 1-nerved, narrowly spatulate to spatulate or oblanceolate, 8–35 × 2–15 mm, tips mucronate, faces gray-tomentose. |
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 to narrowly oblanceolate, 8–20 mm, not flagged (apices acute). |
linear, 1.5–25 mm, distal flagged. |
Involucres | staminate 5.5–7.5 mm; pistillate 8–10(–15) mm (gynoecious), 7–7.2 mm (dioecious). |
staminate 4–7 mm; pistillate 6–10 mm. |
Corollas | staminate 3.5–4.5 mm; pistillate 5–8 mm. |
staminate 2.7–5 mm; pistillate 4.5–6.5(–7) mm. |
Phyllaries | distally white, pink, green, red, or brown. |
distally white. |
Heads | 2–7 in corymbiform arrays. |
(1–)2–8 in corymbiform to spiciform or racemiform arrays. |
Cypselae | 1–1.8 mm, glabrous or minutely papillate; pappi: staminate 4–5.5 mm; pistillate 6.5–9 mm. |
0.9–1.4 mm, minutely papillate; pappi: staminate 3.5–6.5 mm; pistillate 6–8.5(–9.5) mm. |
2n | = 56, 84, 112, 140. |
= 28. |
Antennaria parvifolia |
Antennaria neglecta |
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Phenology | Flowering late spring–summer. | Flowering early–mid spring. |
Habitat | Prairies, pastures, roadsides, mountain parks, open deciduous woods, and drier coniferous forests, usually ponderosa or lodgepole pine | Plains, grasslands, pastures, and open woodlands |
Elevation | 100–3400 m (300–11200 ft) | 0–2500 m (0–8200 ft) |
Distribution |
AZ; CO; IA; ID; MI; MN; MT; ND; NE; NM; NV; OR; SD; TX; UT; WA; WY; AB; BC; MB; ON; SK; Okla (expected in panhandle); Wis (expected); Mexico (Chihuahua, Nuevo León)
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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
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Discussion | Antennaria parvifolia is a widespread, polyploid complex of sexual (dioecious) and asexual (gynoecious) populations (G. L. Stebbins 1932b; R. J. Bayer and Stebbins 1987). Although variable morphologically, no infraspecific taxa seem warranted at this time. Sexual (dioecious) populations are known primarily from New Mexico and Colorado; apomictic plants occur throughout the range of the species. Probable sexual diploid/tetraploid progenitors of the A. parvifolia complex include A. dioica, A. marginata, A. neglecta, and A. pulchella/A. media. Antennaria parvifolia is characterized by relatively short stature and relatively small numbers of relatively large heads. The epithet parvifolia has been rendered as “parviflora” in floras, e.g., key in Great Plains Flora Association (1986); E. H. Moss (1959); H. J. Scoggan (1978–1979, part 4). In some floras, A. parvifolia has been confused with A. microphylla; the two are probably not closely related. (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.) |
Source | FNA vol. 19, p. 406. | FNA vol. 19, p. 403. |
Parent taxa | Asteraceae > tribe Gnaphalieae > Antennaria | Asteraceae > tribe Gnaphalieae > Antennaria |
Sibling taxa | ||
Synonyms | A. aprica, A. aprica var. aureola, A. aprica var. minuscula, A. aureola, A. dioica var. parvifolia, A. holmii, A. latisquamea, A. minuscula, A. recurva, A. rhodantha | 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 | Nuttall: Trans. Amer. Philos. Soc., n. s. 7: 406. (1841) | Greene: Pittonia 3: 173. (1897) |
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