Hypocalymma asperum

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Hypocalymma asperum
Hypocalymma asperum.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Hypocalymma
Species:
H. asperum
Binomial name
Hypocalymma asperum
Synonyms [1]

Hypocalymma asperumSchauer nom. inval., nom. nud.

Hypocalymma asperum is a species of flowering in the myrtle family Myrtaceae, and is endemic to the south west region of Western Australia. It is an erect, multi-branched or spreading shrublet, with relatively short, stout leaves, and rose pink flowers.

Contents

Description

Hypocalymma asperum is multi-branched or spreading shrublet that typically grows to a height of up to 30–90 cm (12–35 in). Its leaves are relatively short and stout, lance-shaped with the narrower end towards the base, 3–7 mm (0.12–0.28 in) long and about 1 mm (0.039 in) wide. The flowers are arranged singly and are sessile with small bracts and bracteoles that fall off as the flowers open. The sepals are more or less round to kidney-shaped, about 1 mm (0.039 in) long and 1.5 mm (0.059 in) wide and pale pinkish. The petals are about 3 mm (0.12 in) in diameter and rose pink. There are about 30 pink stamens with the filaments joined at the base, and slightly longer than the petals. Flowering occurs from February to March and the fruit is a purplish capsule 3.5–4 mm (0.14–0.16 in) in diameter. [2] [3]

Taxonomy

Hypocalymma asperum was first formally described in 1844 by Johannes Conrad Schauer in Lehmann's Plantae Preissianae . [4] [5] The specific epithet (asperum) means 'rough to the touch'. [6]

Distribution and habitat

This species of Hypocalymma is found along the south coast from the Stirling Range National Park, inland to Lake Grace and east to the Cape Arid National Park in the Avon Wheatbelt, Esperance Plains, Jarrah Forest and Mallee bioregions of southern Western Australia. [2] [3]

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|range_map = Leptospermum glaucescensDistA24.png |range_map_caption = Occurrence data from AVH }}

References

  1. 1 2 "Hypocalymma asperum". Australian Plant Census. Retrieved 15 August 2024.
  2. 1 2 Strid, Arne; Keighery, Gregory J. (2003). "A taxonomic review of the genus Hypocalymma (Myrtaceae)". Nordic Journal of Botany. 22 (5): 561.
  3. 1 2 "Hypocalymma asperum". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. "Hypocalymma asperum". Australian Plant Name Index. Retrieved 15 August 2024.
  5. Schauer, Johannes C. (1844). Lehmann, Johann G.C. (ed.). Plantae Preissianae. Vol. 1. Hamburg: Sumptibus Meissneri. p. 111. Retrieved 15 August 2024.
  6. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 138. ISBN   9780958034180.