Pseudognaphalium thermale

(E. E. Nelson) G. L. Nesom

Sida 21: 781. 2004.

Common names: Northwestern rabbit-tobacco
IllustratedEndemic
Basionym: Gnaphalium thermale E. E. Nelson Bot. Gaz. 30: 121. 1900
Synonyms: Gnaphalium canescens subsp. thermale (E. E. Nelson) Stebbins & D. J. Keil Gnaphalium johnstonii G. N. Jones Gnaphalium microcephalum var. thermale (E. E. Nelson) Cronquist Gnaphalium microcephalum subsp. thermale (E. E. Nelson) G. W. Douglas Pseudognaphalium canescens subsp. thermale (E. E. Nelson) Kartesz Pseudognaphalium microcephalum var. thermale (E. E. Nelson) Dorn
Treatment appears in FNA Volume 19. Treatment on page 419. Mentioned on page 415, 417.

Perennials, (20–)30–70 cm; taprooted. Stems loosely tomentose, not glandular. Leaf blades narrowly oblanceolate, 3–8 cm × 3–6 mm (gradually smaller distally, becoming linear), bases not clasping, decurrent 5–14 mm, margins flat, faces concolor, loosely tomentose, sessile-glandular beneath tomentum. Heads in loose to dense, corymbiform to paniculiform arrays. Involucres turbinate-campanulate, (4–)5–6 mm. Phyllaries in 3–4(–5) series, whitish (hyaline or opaque, usually shiny, sometimes dull), ovate to ovate-oblong (outer broadly acute, inner rounded-apiculate), glabrous. Pistillate florets 35–55. Bisexual florets (2–)4–7. Cypselae ridged, densely papillate-roughened.


Phenology: Flowering Jun–Sep(–Oct).
Habitat: Dry, sandy road banks, roadside ditches, streambeds and banks, lakeshores, granitic sand, open woods of yellow pine, Jeffrey pine, red fir, Douglas fir, mixed conifer, and mixed evergreen
Elevation: (50–)300–2300(–2500) m

Distribution

V19-685-distribution-map.gif

Alta., B.C., Calif., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Pseudognaphalium thermale"
Guy L. Nesom +
(E. E. Nelson) G. L. Nesom +
Gnaphalium thermale +
Northwestern rabbit-tobacco +
Alta. +, B.C. +, Calif. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
(50–)300–2300(–2500) m +
Dry, sandy road banks, roadside ditches, streambeds and banks, lakeshores, granitic sand, open woods of yellow pine, Jeffrey pine, red fir, Douglas fir, mixed conifer, and mixed evergreen +
Flowering Jun–Sep(–Oct). +
Illustrated +  and Endemic +
Gnaphalium canescens subsp. thermale +, Gnaphalium johnstonii +, Gnaphalium microcephalum var. thermale +, Gnaphalium microcephalum subsp. thermale +, Pseudognaphalium canescens subsp. thermale +  and Pseudognaphalium microcephalum var. thermale +
Pseudognaphalium thermale +
Pseudognaphalium +
species +