Pseudognaphalium stramineum

(Kunth) Anderberg

Opera Bot. 104: 148. 1991.

Common names: Cotton-batting-plant
Basionym: Gnaphalium stramineum Kunth in A. von Humboldt et al., Nov. Gen. Sp. 4(fol.): 66. 1818; 4(qto.): 85. 1820
Synonyms: Gnaphalium chilense Sprengel Gnaphalium chilense var. confertifolium Greene Gnaphalium gossypinum Rydberg Gnaphalium lagopodioides Greene Gnaphalium proximum Rydberg Gnaphalium sulphurescens
Treatment appears in FNA Volume 19. Treatment on page 418. Mentioned on page 415, 416, 424.

Annuals or biennials, 30–60(–80) cm; taprooted. Stems (1+ from base, erect to ascending) loosely tomentose, not glandular. Leaf blades (crowded, internodes usually 1–5, sometimes to 10 mm) oblong to narrowly oblanceolate or subspatulate, 2–8(–9.5) cm × 2–5(–10) mm (smaller distally, narrowly lanceolate to linear), bases subclasping, usually not decurrent, sometimes decurrent 1–2 mm, margins flat or slightly revolute, faces concolor, loosely and persistently gray-tomentose, not glandular. Heads in terminal glomerules (1–2 cm diam.). Involucres subglobose, 4–6 mm. Phyllaries in 4–5 series, whitish (often yellowish with age, hyaline, shiny), ovate to oblong-obovate, glabrous. Pistillate florets 160–200. Bisexual florets [8–]18–28. Cypselae weakly, if at all, ridged (otherwise smooth or papillate-roughened, glabrous, without papilliform hairs; pappus bristles loosely coherent basally, released in clusters or easily fragmented rings). 2n = 28.

Phenology: Flowering Mar–Oct.
Habitat: Sandy fields, streamsides, washes, swales, dunes, chaparral slopes, roadsides, fields, disturbed places, moist disturbed places
Elevation: 10–1600 m



B.C., Ariz., Calif., Colo., Idaho, Mont., Nebr., Nev., N.Mex., N.Y., N.C., Okla., Oreg., S.C., Tex., Utah, Va., Wash., Wyo., Mexico, South America.


Pseudognaphalium stramineum is probably native from South America to western North America; it is adventive in sandy fields on the Atlantic coastal plain, where it flowers May–Aug.

Selected References


Lower Taxa

Guy L. Nesom +
(Kunth) Anderberg +
Gnaphalium stramineum +
Cotton-batting-plant +
B.C. +, Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Nebr. +, Nev. +, N.Mex. +, N.Y. +, N.C. +, Okla. +, Oreg. +, S.C. +, Tex. +, Utah +, Va. +, Wash. +, Wyo. +, Mexico +  and South America. +
10–1600 m +
Sandy fields, streamsides, washes, swales, dunes, chaparral slopes, roadsides, fields, disturbed places, moist disturbed places +
Flowering Mar–Oct. +
Illustrated +
Gnaphalium chilense +, Gnaphalium chilense var. confertifolium +, Gnaphalium gossypinum +, Gnaphalium lagopodioides +, Gnaphalium proximum +  and Gnaphalium sulphurescens +
Pseudognaphalium stramineum +
Pseudognaphalium +
species +