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

felt-leaf everlasting, San Diego rabbit-tobacco, Wright's cudweed

Habit Annuals or biennials (often sweetly fragrant), 40–90 cm; taprooted. Perennials, (30–)50–100 cm; taprooted.
Stems

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

persistently grayish tomentose, not glandular, (3–5 mm diam. near bases).

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 narrowly oblanceolate, 2–5(–8) cm × 5–10(–18) mm (gradually smaller distally, becoming lanceolate), bases not clasping, not decurrent, margins flat, faces weakly bicolor, tomentose (adaxial less densely), not glandular.

Involucres

campanulo-subglobose, 4.5–5.5 mm.

turbinate-campanulate, 5–6 mm.

Pistillate florets

47–101(–156).

29–49.

Bisexual florets

5–12[–21].

5–9.

Phyllaries

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

in 4–5 series, white (opaque, dull), ovate to oblong-ovate (inner narrower, all usually with filiform but definitely thickened keel and slight apiculum), tomentose (at least bases).

Heads

in corymbiform arrays.

in loose, corymbiform arrays.

Cypselae

not ridged, ± papillate-roughened.

ridged, smooth to weakly papillate-roughened.

2n

= 28.

Pseudognaphalium macounii

Pseudognaphalium microcephalum

Phenology Flowering July–Oct. Flowering (Apr–)Jun–Aug(–Nov).
Habitat Dry, open habitats, pastures, open woods or edges, roadsides Grassy hillsides, gravelly canyon bottoms, chaparral, coastal sage scrub
Elevation 50–2600(–3000) m (200–8500(–9800) ft) 50–900(–1800) m (200–3000(–5900) 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
CA; Mexico (Baja California)
[WildflowerSearch 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.)

Pseudognaphalium microcephalum is characterized by stems commonly stiffly erect and slightly zigzag distally, relatively thick (3–5 mm diam. near bases), and closely grayish tomentose, leaves oblanceolate, sessile, sometimes clasping, not decurrent, and weakly bicolor, and heads usually in open, corymbiform arrays.

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

Source FNA vol. 19, p. 421. FNA vol. 19, p. 419.
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. obtusifolium, P. pringlei, P. ramosissimum, P. roseum, P. saxicola, P. stramineum, P. thermale, P. viscosum
Synonyms Gnaphalium macounii, Gnaphalium decurrens Gnaphalium microcephalum, Gnaphalium albidum, Gnaphalium canescens subsp. microcephalum, P. canescens subsp. microcephalum
Name authority (Greene) Kartesz: in J. T. Kartesz and C. A. Meacham, Synth. N. Amer. Fl., nomencl. innov. 30. (1999) (Nuttall) Anderberg: Opera Bot. 104: 147. (1991)
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