Pseudognaphalium macounii |
Pseudognaphalium jaliscense |
|
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gnaphale de Macoun, Macoun's cudweed, Macoun's everlasting, Macoun's rabbit-tobacco, sticky cudweed, winded cudweed, wing cudweed |
Jalisco rabbit-tobacco |
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Habit | Annuals or biennials (often sweetly fragrant), 40–90 cm; taprooted. | Annuals or biennials, 30–70 cm; taprooted. |
Stems | stipitate-glandular throughout (usually persistently lightly white-tomentose distally). |
(branched among heads) densely and persistently loosely woolly-tomentose-sericeous, not glandular. |
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 lanceolate to nearly linear, 3–10 cm × 3–6 mm, bases not clasping, decurrent 4–8 mm, margins flat or slightly revolute, faces concolor, tomentose-sericeous (bases of hairs enlarged), sessile-glandular beneath tomentum. |
Involucres | campanulo-subglobose, 4.5–5.5 mm. |
campanulate, 5–6 mm. |
Pistillate florets | 47–101(–156). |
(80–)115[–180]. |
Bisexual florets | 5–12[–21]. |
(6–)8–12[–30]. |
Phyllaries | in 4–5 series, stramineous to creamy (hyaline, shiny), ovate to ovate-oblong, glabrous. |
in 5–6(–7) series, white (opaque, dull), ovate or elliptic (keeled, apiculate), glabrous. |
Heads | in corymbiform arrays. |
in corymbiform arrays. |
Cypselae | not ridged, ± papillate-roughened. |
weakly ridged, papillate-roughened or smooth. |
Pseudognaphalium macounii |
Pseudognaphalium jaliscense |
|
Phenology | Flowering July–Oct. | Flowering Jul–Oct. |
Habitat | Dry, open habitats, pastures, open woods or edges, roadsides | Grasslands, chaparral, openings in oak-pine-juniper, oak, and ponderosa pine woodlands, roadsides, disturbed sites |
Elevation | 50–2600(–3000) m (200–8500(–9800) ft) | 1500–2300 m (4900–7500 ft) |
Distribution |
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
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AZ; CO; NE; NM; TX; Mexico |
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 jaliscense is recognized by its relatively long, narrow, concolor to weakly bicolor leaves with non-clasping, short-decurrent bases, relatively large heads with white, opaque, dull phyllaries, and relatively large numbers of pistillate and bisexual florets. Counts of pistillate and bisexual florets from the United States collections are mostly 90–115 and (6–)8–12 (fewer than in Mexico). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 19, p. 421. | FNA vol. 19, p. 424. |
Parent taxa | Asteraceae > tribe Gnaphalieae > Pseudognaphalium | Asteraceae > tribe Gnaphalieae > Pseudognaphalium |
Sibling taxa | ||
Synonyms | Gnaphalium macounii, Gnaphalium decurrens | Gnaphalium jaliscense |
Name authority | (Greene) Kartesz: in J. T. Kartesz and C. A. Meacham, Synth. N. Amer. Fl., nomencl. innov. 30. (1999) | (Greenman) Anderberg: Opera Bot. 104: 147. (1991) |
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