Hyalosperma praecox

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Fine-leaf sunray
Hyalosperma praecox.png
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Hyalosperma
Species:
H. praecox
Binomial name
Hyalosperma praecox

Hyalosperma praecox commonly known as fine-leaf sunray, [2] is a flowering plant in the family Asteraceae. It is an upright, annual herb with stems branching from the base and yellow or white flowers and grows in New South Wales and Victoria.

Contents

Description

Hyalosperma praecox is an upright, multi-stemmed annual 10–20 cm (3.9–7.9 in) high with stems arising from the base. The leaves are narrow, green, 5–40 mm (0.20–1.57 in) long, decreasing in size toward the apex, upper leaves with a dry appendage, and tapering to a point. The white or yellow flowers are borne singly, bracts in several rows, outer bracts about 5 mm (0.20 in) long, inner bracts about 7–10 mm (0.28–0.39 in) long, corolla has five lobes and about 2 mm (0.079 in) long. Flowering occurs in spring and the fruit is an oval-shaped cypsela about 1 mm (0.039 in) long and may be either smooth or warty. [3] [4]

Taxonomy and naming

This species was first described by Ferdinand von Mueller and given the name Helipterum praecox. [5] In 1989 Paul Graham Wilson changed the name to Hyalosperma praecox and the description was published in Nuytsia . [6] [7] The specific epithet (praecox) means "early". [8]

Distribution and habitat

Fine-leaf sunray grows in open forests or grasslands on sand or heavy loam soils in New South Wales and Victoria. [2]

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References

  1. "Hyalosperma praecox". Australian Plant Census. Retrieved 4 July 2023.
  2. 1 2 Schaumann, M.; Barker, J.; Grieg, J. (1987). Australian Daisies. Sydney: Lothian Publishing. p. 176. ISBN   0850912911.
  3. "Hyalosperma praecox". VICFLORA-Flora of Victoria. Royal Botanic Gardens Victoria. Retrieved 4 July 2023.
  4. Wilson, Paul. "Hyalosperma praecox". PlantNET-NSW Flora online. Royal Botanic Gardens Sydney. Retrieved 4 July 2023.
  5. "Helipterum praecox". Australian Plant Name Index. Retrieved 4 July 2023.
  6. "Hyalosperma praecox". Australian Plant Name Index. Retrieved 4 July 2023.
  7. Wilson, Paul (1989). "Hyalosperma praecox". Nuytsia. 7 (1): 96.
  8. George, A.S; Sharr, F.A (2021). Western Australian Plant Names and their meanings (4th ed.). Kardinya: Four Gables. p. 291. ISBN   9780958034197.