Living Collection Virtual Herbarium

Asteraceae
Helichrysum frigidum Willd.

Verified by: Hind, N. 10 August 2014
Notes: Verified with Flora Europaea vol. 4; Butl. Inst. Catalana, Hist Nat. Secc Bot 71:134. 2004 and Galbany-Casals et al. 2009 'Phylogeny, biogeography, and character evolution in mediterranean, asiatic, and macaronesian Helichrysum (Asteraceae, Gnaphalieae) inferred from nuclear phylogenetic analyses' Int. Journ. Plant Sciences 170(3): 365–380. Perennial caespitose with decumbent stems. Leaves less than 5mm wide wooly and closely imbricate. Capitula solitary and terminal. Phyllaries numerous pure white and scarious, longer than the florets. Phyllaries erect to spreading after anthesis. Cypsela sericeous hairy, pappus scabrid. Galbany Casals has shown in his phylogeny that H. frigidum is distinct from the rest of the genus Helichrysum and should be called Castroviejoa. This study was only done for the mediterranean Helichrysum we can infer than includng all worldwide species would involve splitting the genus further. Nicholas Hind 'Castroviejoa is not recognized in the curatorial generic index we are using at K. I do find that the molecular work presented in the paper you provided is exceptionally poorly resolved! I will await much more critical work until I feel I need to revise my decision.'

capitulum capitulum

florets florets

florets florets

phyllaries phyllaries

capitulum section capitulum section

capitulum section capitulum section

florets florets

androecium section androecium section

androecium section androecium section

stem stem

abaxial leaf surface abaxial leaf surface leaf section leaf section

flowering branch

capitulum

capitulum
capitulum
capitulum