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gnaphale de Macoun, Macoun's cudweed, Macoun's everlasting, Macoun's rabbit-tobacco, sticky cudweed, winded cudweed, wing cudweed

Pringle's cudweed, Pringle's rabbit-tobacco

Habit Annuals or biennials (often sweetly fragrant), 40–90 cm; taprooted. Annuals or perennials, 30–80 cm; taprooted.
Stems

stipitate-glandular throughout (usually persistently lightly white-tomentose distally).

lightly white-tomentose and/or glabrescent and green, minutely stipitate- or sessile-glandular beneath other induments.

Leaf

blades (not crowded, internodes mostly 5+ mm) lanceolate to oblanceolate, 3–10 cm × 3–13 mm (distal linear), bases not clasping, decurrent 5–10 mm, margins flat to slightly revolute, faces weakly bicolor, abaxial tomentose, adaxial stipitate-glandular, otherwise glabrescent or glabrous.

blades (not crowded, internodes mostly 5+ mm) oblanceolate-spatulate to obovate- or petiolate-spatulate, 5–10 cm × 10–20 mm (distal oblong to lanceolate or oblanceolate, 2–8 cm, slightly smaller), bases not clasping and decurrent 3–20 mm or clasping and decurrent 1–3 mm or not decurrent at all, margins flat to slightly revolute, faces bicolor, abaxial thinly white-tomentose, adaxial minutely stipitate- or sessile-glandular, otherwise glabrous or glabrate (bases of hairs persistent, enlarged).

Involucres

campanulo-subglobose, 4.5–5.5 mm.

campanulate to turbinate, 3.5–4 mm.

Pistillate florets

47–101(–156).

15–40(–64).

Bisexual florets

5–12[–21].

(1–)2–6.

Phyllaries

in 4–5 series, stramineous to creamy (hyaline, shiny), ovate to ovate-oblong, glabrous.

in 2–3 series, silvery white to tawny, oblong to oblong-ovate, (hyaline, shiny), glabrous.

Heads

in corymbiform arrays.

in loose, corymbiform arrays.

Cypselae

not ridged, ± papillate-roughened.

ridged, papillate-roughened.

Pseudognaphalium macounii

Pseudognaphalium pringlei

Phenology Flowering July–Oct. Flowering (Aug–)Sep–Nov.
Habitat Dry, open habitats, pastures, open woods or edges, roadsides Rock outcrops and slopes, crevices and thin soil on cliffs, oak or oak-pine woodlands
Elevation 50–2600(–3000) m (200–8500(–9800) ft) 1500–2300 m (4900–7500 ft)
Distribution
from FNA
AZ; CA; CO; CT; ID; IL; IN; MA; ME; MI; MN; MT; NH; NM; NY; OH; OR; PA; SD; TN; UT; VA; VT; WA; WI; WV; WY; AB; BC; MB; NB; NS; ON; PE; QC; SK; Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; NM; TX; Mexico (Chihuahua, Durango, Sonora)
[BONAP county map]
Discussion

Pseudognaphalium macounii is recognized by its stipitate-glandular, proximally glabrescent stems, bicolor and decurrent leaves, relatively large and many-flowered heads, and hyaline, shiny phyllaries. Reports of P. macounii from Texas are based on specimens of P. viscosum.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 19, p. 421. FNA vol. 19, p. 422.
Parent taxa Asteraceae > tribe Gnaphalieae > Pseudognaphalium Asteraceae > tribe Gnaphalieae > Pseudognaphalium
Sibling taxa
P. arizonicum, P. austrotexanum, P. beneolens, P. biolettii, P. californicum, P. canescens, P. helleri, P. jaliscense, P. leucocephalum, P. luteoalbum, P. micradenium, P. microcephalum, P. obtusifolium, P. pringlei, P. ramosissimum, P. roseum, P. saxicola, P. stramineum, P. thermale, P. viscosum
P. arizonicum, P. austrotexanum, P. beneolens, P. biolettii, P. californicum, P. canescens, P. helleri, P. jaliscense, P. leucocephalum, P. luteoalbum, P. macounii, P. micradenium, P. microcephalum, P. obtusifolium, P. ramosissimum, P. roseum, P. saxicola, P. stramineum, P. thermale, P. viscosum
Synonyms Gnaphalium macounii, Gnaphalium decurrens Gnaphalium pringlei
Name authority (Greene) Kartesz: in J. T. Kartesz and C. A. Meacham, Synth. N. Amer. Fl., nomencl. innov. 30. (1999) (A. Gray) Anderberg: Opera Bot. 104: 147. (1991)
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