Jersey Cudweed

Pseudognaphalium luteoalbum

Summary 2

Helichrysum luteoalbum, commonly known as Jersey Cudweed or Weedy Cudweed, is a cosmopolitan weed.

Description 3

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. Heads in terminal glomerules (1–2 cm diam.). Involucres broadly campanulate, 3–4 mm. Phyllaries in 3–4 series, silvery gray to yellowish (hyaline), ovate to ovate-oblong, glabrous. Pistillate florets 135–160. Bisexual florets 5–10 (corollas red-tipped). 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.

Habitat 4

Weed of canal banks, moist ground near springs.

Distribution 5

Distribution: Cosmopolitan, widely distributed in Europe, S W and Central Asia, Pakistan, India, China, N America and Australia.

Flowers and fruiting 6

Cold and early summer seasons.

Sources and Credits

  1. (c) Wikimedia Commons, some rights reserved (CC BY-SA), https://upload.wikimedia.org/wikipedia/commons/b/b3/Pseudognaphalium02.jpg
  2. Adapted by Chandan Pandey from a work by (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Pseudognaphalium_luteoalbum
  3. (c) Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/4949887
  4. (c) Bibliotheca Alexandrina, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/22633102
  5. (c) Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/4947691
  6. (c) Chandan Pandey, some rights reserved (CC BY-SA)

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