Helichrysum retortum

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Helichrysum retortum
Helichrysum retortum02.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Helichrysum
Species:
H. retortum
Binomial name
Helichrysum retortum
(L.) Willd.
Synonyms [1]
  • Argyrocome retorta (L.) Gaertn.
  • Astelma retorta (L.) D.Don
  • Astelma retorta (L.) D.Don ex Sw.
  • Astelma retorta (L.) D.Don ex Sweet
  • Gnaphalium retortum (L.) Sch.Bip.
  • Helichrysum argenteum Schrank
  • Helichrysum radicans (Thunb.) Willd.
  • Helichrysum retortum var. retortum
  • Xeranthemum polyfolium Crantz
  • Xeranthemum radicans Thunb.
  • Xeranthemum retortum L.

Helichrysum retortum, the flask everlasting or sea strawflower, is a species of plant from South Africa.

Contents

Description

Close up showing the flowers surrounded by bracts Sea Strawflowers (Helichrysum retortum) (32045923253).jpg
Close up showing the flowers surrounded by bracts

This straggling silvery shrublet grows up to 50 cm (20 in) tall, although the stems may be longer. [2] The overlapping leaves grow close to the stem. [2] [3] They are oblong and the upper leaves are folded and hooked. They are covered in tissue paper-like hairs, making them a silvery colour. [3] [4]

Papery flowers are present between August and December. [4] The terminal disc shaped flower heads are nested in leaves and surrounded by white, glossy bracts that are brown or pink on the outside. [2] [4] The flowers have a diameter of about 4 cm (1.6 in). The ray florets are shiny white in colour and are often flushed with brown and pink. [2] The disc florets are yellow in colour. [3]

Distribution and habitat

This plant is always found growing near the sea. [3] It is found growing on sand cliffs, sand dunes and sandy slopes and flats along the southwest coast of South Africa, from Blouberg to the north of Table Bay and Stillbaai. It sometimes grows up between neighboring bushes. [4]

Conservation

While this species has lost some of its habitat to urban development, it is still considered to be common and is listed as being of least concern by the South African National Biodiversity Institute. [5]

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References

  1. "Helichrysum retortum". Global Biodiversity Information Facility . Retrieved 9 February 2023.
  2. 1 2 3 4 e-Flora of South Africa. v1.36. 2022. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.36
  3. 1 2 3 4 Clarke, Hugh G.; Merry, Corinne (2019). Wild flowers of the Cape Peninsula (3rd ed.). Cape Town: Struik Nature. ISBN   978-1-77584-640-6. OCLC   1124073483.
  4. 1 2 3 4 Manning, John; Goldblatt, Peter (2012). Plants of the Greater Cape Floristic Region : 1: the core Cape flora (PDF). Pretoria: South African National Biodiversity Institute, SANBI. ISBN   978-1-919976-74-7. OCLC   852384288.
  5. Foden, W. & Potter, L. 2009. Helichrysum retortum (L.) Willd. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2023/02/09