Calytrix flavescens

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Calytrix flavescens
Calytrix flavescens - Flickr - Kevin Thiele.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Calytrix
Species:
C. flavescens
Binomial name
Calytrix flavescens
Synonyms [1]
List
    • Calycothrix flavescens(A.Cunn.) Schauer
    • Calycothrix flavescens(A.Cunn.) Fielding & Gardner nom. illeg.
    • Calycothrix puberula Meisn.
    • Calycothrix tenellaMeisn.
    • Calycothrix tetragonophyllaMeisn.
    • Calythrix flavescens orth. var.
    • Calythrix flavescensA.Cunn. var. flavescensorth. var.
    • Calythrix flavescens var. tenella Benth. orth. var.
    • Calythrix puberulaBenth. orth. var.
    • Calythrix tenella(Meisn.) Benth. nom. inval., pro syn.
    • Calythrix tetragonophyllaBenth. nom. inval., pro syn.
    • Calytrix flavescensA.Cunn.var. flavescens
    • Calytrix flavescens var. tenella(Meisn.) Benth.
    • Calytrix puberula(Meisn.) Benth.
Seed head Calytrix flavescens seed head (7159678139).jpg
Seed head
Habit Calytrix flavescens habit.jpg
Habit

Calytrix flavescens, commonly known as summer starflower, [2] is a species of flowering plant in the myrtle family Myrtaceae and is endemic to the south-west of Western Australia. It is a shrub with linear to narrowly elliptic leaves, and yellow flowers with about 35 to 60 stamens in several rows.

Contents

Description

Calytrix flavescens is a shrub that typically grows to a height of 30–80 cm (12–31 in). Its leaves are linear to narrowly elliptic, mostly 4–9 mm (0.16–0.35 in) long and 0.5–1.5 mm (0.020–0.059 in) wide on a petiole 0.25–1.0 mm (0.0098–0.0394 in) long. The flowers are borne on a peduncle 0.6–1.25 mm (0.024–0.049 in) long with egg-shaped to lance-shaped bracteoles 5–9 mm (0.20–0.35 in) long. The floral tube is glabrous, 7–15 mm (0.28–0.59 in), fused to the style and usually has 10 ribs. The sepals are fused at the base, with more or less round to broadly egg-shaped lobes 1.5–2.75 mm (0.059–0.108 in) long and 1.5–2.5 mm (0.059–0.098 in) wide, with an awn up to 14 mm (0.55 in) long. The petals are glabrous, yellow, egg-shaped to lance-shaped 5.5–10 mm (0.22–0.39 in) long and 3.5–4.0 mm (0.14–0.16 in) wide, and there are about 35 to 60 stamens in several rows. Flowering usually occurs between October and January. [2] [3]

Taxonomy

Calytrix flavescens was first formally described in 1834 by the botanist Allan Cunningham in 1834 in the journal Botanical Magazine . [4] [5] The specific epithet (flavescens) means 'pale yellow' or 'yellowish', referring to the flowers. [6]

Distribution and habitat

Summer starflower grows on sand-plains, gentle slopes and sometimes in winter-wet areas from the Arrowsmith River district and southwards to the Blackwood River district in the Avon Wheatbelt, Esperance Plains, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain and Warren bioregions of south-western Western Australia, where it grows on sandy soils over granite, laterite or sandstone. [2]

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References

  1. 1 2 "Calytrix flavescens". Australian Plant Census. Retrieved 29 September 2024.
  2. 1 2 3 "Calytrix flavescens". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. ↑ Craven, Lyndley (1987). "A taxonomic revision of Calytrix Labill. (Myrtaceae)". Brunonia: 88–89.
  4. ↑ "Calytrix flavescens". Australian Plant Name Index. Retrieved 30 September 2024.
  5. ↑ Cunningham, Allan (1834). Hooker, William J. (ed.). "Calythrix virgata". Curtis's Botanical Magazine. 61: 3323. Retrieved 30 September 2024.
  6. ↑ George, Alex; Sharr, Francis (2021). Western Australian Plant Names and Their Meanings (4th ed.). Kardinya, WA: Four Gables Press. p. 200. ISBN   9780958034180.
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