Pseudognaphalium canescens

(de Candolle) Anderberg

Opera Bot. 104: 147. 1991.

Common names: Wright’s rabbit-tobacco
Basionym: Gnaphalium canescens de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 6: 228. 1838
Synonyms: Gnaphalium sonorae I. M. Johnston Gnaphalium texanum I.M Johnston Gnaphalium viridulum I. M. Johnston Gnaphalium wrightii A. Gray
Treatment appears in FNA Volume 19. Treatment on page 418. Mentioned on page 417, 424.

Annuals or perennials, 20–70(–100+) cm; taprooted. Stems persistently tomentose, not glandular (2–3 mm diam. near bases). Leaf blades narrowly to broadly oblanceolate, mostly 2–4(–5) cm × 2–8(–15) mm, bases not clasping, not decurrent, margins flat, faces weakly bicolor, tomentose (adaxial less densely tomentose, sometimes sessile-glandular beneath tomentum). Heads usually in loose, corymbiform arrays. Involucres turbinate-campanulate, 4–5 mm. Phyllaries in 3–4 series, white (opaque to hyaline, dull to shiny), narrowly ovate-lanceolate, glabrous. Pistillate florets (16–)24–44. Bisexual florets (1–)2–5(–6), 5–6 more common in northern part of range. Cypselae ridged, weakly papillate-roughened. 2n = 28.

Phenology: Flowering Aug–Nov(–Jan).
Habitat: Lava beds, rocky sites, grasslands, oak, pine-oak, and pine woodlands
Elevation: 1100–2500(–2700) m



Ariz., Calif., Colo., N.Mex., Okla., Tex., Utah, Mexico.


Most plants of Pseudognaphalium canescens produce white, opaque, keeled, apiculate phyllaries; in the southern portion of its range (Jalisco southeastward) and scattered localities elsewhere, the phyllaries may be more hyaline and lack a pronounced keel and apiculum.

Selected References


Lower Taxa

Guy L. Nesom +
(de Candolle) Anderberg +
Gnaphalium canescens +
Wright’s rabbit-tobacco +
Ariz. +, Calif. +, Colo. +, N.Mex. +, Okla. +, Tex. +, Utah +  and Mexico. +
1100–2500(–2700) m +
Lava beds, rocky sites, grasslands, oak, pine-oak, and pine woodlands +
Flowering Aug–Nov(–Jan). +
Gnaphalium sonorae +, Gnaphalium texanum +, Gnaphalium viridulum +  and Gnaphalium wrightii +
Pseudognaphalium canescens +
Pseudognaphalium +
species +