pseudognaphalium lueoalbum

Pseudognaphalium luteoalbum:

Pseudognaphalium luteoalbum  a species of flowering plant in the Asteraceae family. Synonyms for this species include Helichrysum luteoalbum. It is referred to as the Jersey cudweed in the United Kingdom. Up to 70 cm (28 in) in height, this herbaceous biennial stands erect and branches from the base. Similar to edelweiss leaves, these have an oblanceolate to lanceolate colour and are covered with hairs. In the winter, the leaves can withstand freezing. Blossoms might be pink, white, yellow, or cream. A pappus on seeds allows them to float across great distances. Carl Linnaeus originally described this species as Gnaphalium luisteo-album in his 1753 Species plantarum (the orthography was later modified to exclude the hyphen Ludwig Reichenbach moved the species to Helichrysum in 1829, but this name was not adopted. Until 1981, when Olive Mary Hilliard and Brian Laurence Burtt moved it to Pseudognaphalium, the species remained in Gnaphalium.  This species originated inside Helichrysum, according to a 2004 study on the evolutionary relationships of Helichrysum allied genera. This led to the revival of Reichenbach's long- lost name for this species. Subsequent research revealed that Helichrysum is the source of all the Pseudognaphalium species that were sampled, along with Anaphalis, Achyrocline, and Humeocline. Phylogenetic analyses conducted later revealed that Helichrysum, Anaphalis, and Pseudognaphalium remained members of the same group.  "Pale yellow" is how the botanical Latin specific epithet luteoalbum is translaed.

MORPHOLOGY, BOTANY AND ECOLOGY: 

Morphology : Cudweed is a tiny herbaceous plant that can reach heights of 10 to 30 centimeters. It looks fuzzy because of its thin, hairy stems and narrow leaves, which are covered with tiny, white or greyish hairs. Typically, the leaves are linear or lance-shaped. 

 

Botany : As a member of the daisy family Asteraceae, cudweed is related. Its flower heads, which are made up of several tiny individual blooms, are what define it. Cudweed is a tiny flowering plant with dense clusters of flowers encircled by papery bracts. The blossoms might be white or somewhat yellowish in colour.

Ecology : Cudweed is a multipurpose plant that grows in a range of environments. It is typically found in disturbed regions including fields and roadside as well as grasslands, meadows, and open forests. It is well known because it is tolerant of both dry and wet circumstances and can adjust to various soil types. Cudweed is one of the first plants to occupy disturbed or bare regions.

SIDE EFFECTS & TOXICITY 

To characterize the efficaciousness of winged cudweed extracts (Gnaphalium luteo-album L. (Pseudognaphalium luteo-album (L.) Hilliard & Burtt)) against Fusarium oxysporum f.sp. lycopersici race 3 in terms of their antifungal properties. Design/methodology/approach: Winged cudweed individuals were cultivated from seed, and extracts from the aerial portion of mature plants were extracted using propanone, hexane, methylene chloride, and methanol. The extracts were put through a Riddell test, a microconidia germination test, and an antifungal activity test against F. oxysporum f.sp. lycopersici race 3, which corresponds to the agar disc diffusion method for mycelium.Additionally, a toxicity test for acetone anddimethyl sulfoxide was conducted.