The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

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

delicate rabbit-tobacco, Weatherby's rabbit-tobacco

Habit Annuals or biennials (often sweetly fragrant), 40–90 cm; taprooted. Annuals (fragrant), 15–60 cm; taprooted or fibrous-rooted.
Stems

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

glandular-puberulent (without persistent tomentum), stipitate glands 0.1–0.2 mm, stalks narrower than gland widths.

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 linear to linear-lanceolate or linear-oblanceolate, 1.5–5.5 cm × 1.5–10 mm, bases not clasping, not decurrent, margins flat, faces bicolor, abaxial white to gray, tomentose, adaxial green, both minutely stipitate-glandular.

Involucres

campanulo-subglobose, 4.5–5.5 mm.

turbinate-campanulate, 5–6 mm.

Pistillate florets

47–101(–156).

47–78.

Bisexual florets

5–12[–21].

(7–)11–20.

Phyllaries

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

in 4–6 series, white to tawny white (hyaline, shiny), narrowly ovate to oblong, glabrous.

Heads

in corymbiform arrays.

in corymbiform arrays.

Cypselae

not ridged, ± papillate-roughened.

ridged, smooth.

Pseudognaphalium macounii

Pseudognaphalium micradenium

Phenology Flowering July–Oct. Flowering Sep–Oct.
Habitat Dry, open habitats, pastures, open woods or edges, roadsides Dry woods and openings, roadsides
Elevation 50–2600(–3000) m (200–8500(–9800) ft) 10–600 m (0–2000 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
GA; IN; KY; MA; MD; ME; MI; MN; MO; NC; NH; NJ; NY; PA; SC; TN; VA; WI
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 micradenium has a more northern and Appalachian distribution than P. helleri. A report of P. micradenium for Louisiana probably was based on specimens of P. helleri. The two species differ in vestiture and other features; stems of P. micradenium are more slender than those of its close relatives.

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

Source FNA vol. 19, p. 421. FNA vol. 19, p. 421.
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. microcephalum, P. obtusifolium, P. pringlei, P. ramosissimum, P. roseum, P. saxicola, P. stramineum, P. thermale, P. viscosum
Synonyms Gnaphalium macounii, Gnaphalium decurrens Gnaphalium obtusifolium var. micradenium, Gnaphalium helleri var. micradenium, P. helleri subsp. micradenium
Name authority (Greene) Kartesz: in J. T. Kartesz and C. A. Meacham, Synth. N. Amer. Fl., nomencl. innov. 30. (1999) (Weatherby) G. L. Nesom: Sida 19: 618. (2001)
Web links