Pseudognaphalium luteoalbum |
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Jersey cudweed, Jersey rabbit tobacco, red-tip rabbit-tobacco, weedy cudweed |
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Habit | Annuals, 15–40 cm; taprooted or fibrous-rooted. |
Stems | loosely white-tomentose, not glandular. |
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. |
Involucres | broadly campanulate, 3–4 mm. |
Pistillate florets | 135–160. |
Bisexual florets | 5–10 (corollas red-tipped). |
Phyllaries | in 3–4 series, silvery gray to yellowish (hyaline), ovate to ovate-oblong, glabrous. |
Heads | in terminal glomerules (1–2 cm diam.). |
Cypselae | not evidently ridged (conspicuously dotted with whitish, papilliform hairs; pappus bristles loosely coherent basally, released in clusters or easily fragmented rings). |
2n | = 14, 16, 28. |
Pseudognaphalium luteoalbum |
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Phenology | Flowering Apr–Oct. |
Habitat | Roadsides, fields and pastures, ditches, streambanks, seasonal ponds, gardens, and other disturbed sites |
Elevation | 5–2000 m (0–6600 ft) |
Distribution |
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]
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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. |
Parent taxa | Asteraceae > tribe Gnaphalieae > Pseudognaphalium |
Sibling taxa | |
Synonyms | Gnaphalium luteoalbum |
Name authority | (Linnaeus) Hilliard & B. L. Burtt: Bot. J. Linn. Soc. 82: 206. (1981) |
Web links |
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