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Jersey cudweed, Jersey rabbit tobacco, red-tip rabbit-tobacco, weedy cudweed

blunt-leaf rabbit-tobacco, eastern rabbit-tobacco, gnaphale à feuilles obtuses, old field balsam, rabbit-tobacco

Habit Annuals, 15–40 cm; taprooted or fibrous-rooted. Annuals or winter annuals (sometimes faintly fragrant), (10–)30–100 cm; taprooted.
Stems

loosely white-tomentose, not glandular.

white-tomentose, sometimes lightly so, usually not glandular, rarely glandular near bases.

Leaf

blades (crowded, internodes 1–5, sometimes to 10 mm) narrowly obovate to subspatulate, 1–3(–6) cm × 2–8 mm (distal smaller, oblanceolate to narrowly oblong or linear), bases subclasping, usually decurrent 1–2 mm, margins weakly revolute, faces mostly concolor to weakly bicolor, abaxial gray-tomentose, adaxial usually gray-tomentose, sometimes glabrescent, neither glandular.

blades linear-lanceolate to elliptic or oblanceolate, 2.5–10 cm × 2–10 mm (relatively even-sized), bases not clasping, not decurrent, margins flat, faces bicolor, abaxial white-tomentose, adaxial green, usually glabrous or slightly glandular, sometimes with persistent light tomentum.

Involucres

broadly campanulate, 3–4 mm.

broadly campanulate, 5–7 mm.

Pistillate florets

135–160.

38–96.

Bisexual florets

5–10 (corollas red-tipped).

4–8(–11).

Phyllaries

in 3–4 series, silvery gray to yellowish (hyaline), ovate to ovate-oblong, glabrous.

in 4–6 series, white (opaque, usually shiny, sometimes dull), ovate to ovate-oblong, glabrous or tomentose (bases).

Heads

in terminal glomerules (1–2 cm diam.).

in corymbiform (sometimes rounded to elongate) arrays.

Cypselae

not evidently ridged (conspicuously dotted with whitish, papilliform hairs; pappus bristles loosely coherent basally, released in clusters or easily fragmented rings).

ridged, smooth.

2n

= 14, 16, 28.

Pseudognaphalium luteoalbum

Pseudognaphalium obtusifolium

Phenology Flowering Apr–Oct. Flowering Aug–Oct.
Habitat Roadsides, fields and pastures, ditches, streambanks, seasonal ponds, gardens, and other disturbed sites Open sites, often disturbed, roadsides, fields, pastures, open woods, in various soils, most abundantly in sand
Elevation 5–2000 m (0–6600 ft) 5–200 m (0–700 ft)
Distribution
from FNA
AR; AZ; CA; FL; LA; NM; NV; NY; OR; TX; UT; WA; Mexico; Europe; Asia; Africa; Pacific Islands (New Zealand); Australia [Introduced in North America]
[WildflowerSearch map]
from FNA
AL; AR; CT; DE; FL; GA; IA; IL; IN; KS; KY; LA; MA; ME; MI; MN; MO; MS; NC; NE; NH; NY; OH; OK; PA; RI; SC; TN; TX; VA; VT; WI; WV; NB; NS; ON; PE; QC
[WildflowerSearch map]
[BONAP county map]
Discussion

Pseudognaphalium luteoalbum is native to Eurasia. It is similar in overall habit to P. stramineum but distinctive in its larger heads and red-tipped corollas (visible through the translucent phyllaries). Cypselae of P. luteoalbum have papilliform hairs; cypselae of other North American species of Pseudognaphalium are glabrous.

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

Source FNA vol. 19, p. 418. FNA vol. 19, p. 420.
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. macounii, 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. micradenium, P. microcephalum, P. pringlei, P. ramosissimum, P. roseum, P. saxicola, P. stramineum, P. thermale, P. viscosum
Synonyms Gnaphalium luteoalbum Gnaphalium obtusifolium, Gnaphalium obtusifolium var. praecox
Name authority (Linnaeus) Hilliard & B. L. Burtt: Bot. J. Linn. Soc. 82: 206. (1981) (Linnaeus) Hilliard & B. L. Burtt: Bot. J. Linn. Soc. 82: 205. (1981)
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