General Appearance
Pseudognaphalium luteoalbum (L.) Hilliard & B.L.Burtt / Homotypic Synonyms: Gnaphalium luteoalbum L., Helichrysum luteoalbum (L.) Rchb., Laphangium luteoalbum (L.) Tzvelev , it is an annual herbs, up to 15-40 cm tall, tap rooted or fibrous-rooted. The stems loosely white tomentose, not glandular. The leaves crowded; internodes 1-5, sometimes to 10 mm; blade narrowly obovate to sub spatulate, 1-3(-6) cm × 2-8 mm. Both surfaces mostly concolorous, to weakly bicolored, usually gray. Flowers are cream, yellow, white, or pink. Cypsela, oblong to mildly oblanceolate, plump to somewhat puckered, sometimes slightly dorsally curved base towards apex, mildly compressed, cross-section elliptic to oblong, 0.5–1 mm long x ca. 0.2 mm wide x ca. 0.1 mm thick. Surface brown, conspicuously dotted with whitish, papilliform hairs, with a light sheen, longitudinal ridges missing or obscured. Pappus of 6–8 white barbellate bristles up to 3 mm long, loosely coherent basally, easily deciduous, detaching in clusters or easily fragmented rings.
Life Form
Phytochoria
Distribution in Libya
Jabal Nafusa: Reported from Gharian by Corti & Keith
Ghat area: Reported from Ghat by Corti & Keith Wadi Tanezzuft 2012
Tibesti area: Reported from Southern part of Tibesti by Corti & Keith
Notes
Wild in Libya, on damp, usually sandy places.
Link of images: https://www.calflora.org/app/taxon?crn=11957, https://apps.lucidcentral.org/plants_se_nsw/text/entities/pseudognaphalium_luteoalbum.htm, https://idtools.org/id/weed-tool/key/GrapeSeedKey/Media/Html/fact_sheets/Pse-lut.html
For more information
https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:909623-1, https://www.ipni.org/n/909623-1, http://www.worldfloraonline.org/taxon/wfo-0000028686, https://www.gbif.org/species/3147761, https://africanplantdatabase.ch/en/nomen/specie/222516/laphangium-luteoalbum-l-tzvelev, https://idtools.org/id/weed-tool/key/GrapeSeedKey/Media/Html/fact_sheets/Pse-lut.html, https://jb.utad.pt/especie/Pseudognaphalium_luteoalbum, https://en.wikipedia.org/wiki/Pseudognaphalium_luteoalbum, https://www.calflora.org/app/taxon?crn=11957, https://apps.lucidcentral.org/plants_se_nsw/text/entities/pseudognaphalium_luteoalbum.htm
First: Encyclopedia Flora of Libyan:
Jafri, S. M. H. & El-Gadi, A. (1983) Flora of Libya, Asteraceae Vol. (107) Department of Botany, Al-Faateh Univ., Tripoli, Libya.
Second: Researches and PhD theses, master theses, Sorted by Newest:
Mukassabi, T.A, Ahmidat, G., Sherif, I.M., ELMogasapi, A. (2012) Checklist and life forms of plant species in contrasting climatic zones of Libya. Biological Diversity and Conservation – 5 / 3 (2012) https://dergipark.org.tr/en/pub/biodicon/issue/55888/765799, https://www.researchgate.net/publication/259357995_Checklist_and_life_forms_of_plant_species_in_contrasting_climatic_zones_of_Libya
Checklist and life forms of plant species in contrasting climatic zones of Libya. 2012
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