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

slender cudweed, Wright's cudweed, Wright's rabbit-tobacco

Habit Annuals, 15–40 cm; taprooted or fibrous-rooted. Annuals or perennials, 20–70(–100+) cm; taprooted.
Stems

loosely white-tomentose, not glandular.

persistently tomentose, not glandular (2–3 mm diam. 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 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).

Involucres

broadly campanulate, 3–4 mm.

turbinate-campanulate, 4–5 mm.

Pistillate florets

135–160.

(16–)24–44.

Bisexual florets

5–10 (corollas red-tipped).

(1–)2–5(–6), 5–6 more common in northern part of range.

Phyllaries

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

in 3–4 series, white (opaque to hyaline, dull to shiny), narrowly ovate-lanceolate, glabrous.

Heads

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

usually in loose, corymbiform arrays.

Cypselae

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

ridged, weakly papillate-roughened.

2n

= 14, 16, 28.

= 28.

Pseudognaphalium luteoalbum

Pseudognaphalium canescens

Phenology Flowering Apr–Oct. Flowering Aug–Nov(–Jan).
Habitat Roadsides, fields and pastures, ditches, streambanks, seasonal ponds, gardens, and other disturbed sites Lava beds, rocky sites, grasslands, oak, pine-oak, and pine woodlands
Elevation 5–2000 m (0–6600 ft) 1100–2500(–2700) m (3600–8200(–8900) 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
AZ; CA; CO; NM; OK; TX; UT; Mexico
[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.)

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.

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

Source FNA vol. 19, p. 418. FNA vol. 19, p. 418.
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. helleri, P. jaliscense, P. leucocephalum, P. luteoalbum, P. macounii, P. micradenium, P. microcephalum, P. obtusifolium, P. pringlei, P. ramosissimum, P. roseum, P. saxicola, P. stramineum, P. thermale, P. viscosum
Synonyms Gnaphalium luteoalbum Gnaphalium canescens, Gnaphalium sonorae, Gnaphalium texanum, Gnaphalium viridulum, Gnaphalium wrightii
Name authority (Linnaeus) Hilliard & B. L. Burtt: Bot. J. Linn. Soc. 82: 206. (1981) (de Candolle) Anderberg: Opera Bot. 104: 147. (1991)
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