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Cryptandra apetala

From Wikipedia, the free encyclopedia

Cryptandra apetala
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rhamnaceae
Genus: Cryptandra
Species:
C. apetala
Binomial name
Cryptandra apetala

Cryptandra apetala is a species of flowering plant in the family Rhamnaceae and is endemic to the south-west of Western Australia. It is a shrub with tufted, linear to lance-shaped leaves, and urn-shaped white to creamy-white and pink flowers arranged on short side shoots.

Description

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Cryptandra apetala is a woody shrub that typically grows to a height of up to 15–50 cm (5.9–19.7 in). The leaves are arranged in tufts, linear to lance-shaped with the edges rolled under, so that the leaves appear cylindrical. The flowers are white to creamy-white and pink, arranged in clusters of 2 to 8 on short side shoots. The bracts are brown and shorter than the sepals lobes. The sepals are about 2 mm (0.079 in) long and joined at the base to form an urn-shaped tube, the tube and sepals lobes densely covered with soft hairs. There are no petals but the stamens have relatively large anthers. Flowering occurs from August to October.[2][3][4]

Taxonomy

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Cryptandra apetala was first formally described in 1909 by Alfred James Ewart and Jean White-Haney in the Proceedings of the Royal Society of Victoria from specimens collected near Cowcowing by Max Koch.[5][3] The specific epithet (apetala) means "without petals".[6]

In 1995, Barbara Lynette Rye described two varieties of C. apetala in the journal Nuytsia, and the names are accepted by the Australian Plant Census:

  • Cryptandra apetala var. anomala Rye[7]
  • Cryptandra apetala Rye var. apetala[8]

Distribution and habitat

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This cryptandra grows on sandy soil in the Avon Wheatbelt, Coolgardie, Geraldton Sandplains, Mallee and Yalgoo bioregions of south-western Western Australia.[2]

Conservation status

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Both varieties of C. apetala are listed as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions.[2]

References

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  1. ^ "Cryptandra apetala". Australian Plant Census. Retrieved 24 August 2022.
  2. ^ a b c "Cryptandra apetala". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. ^ a b Ewart, Alfred J.; White-Haney, Jean (1909). "Contributions to the Flora of Australia No. 12". Proceedings of the Royal Society of Victoria. 22 (1): 93. Retrieved 25 August 2022.
  4. ^ Rye, Barbara L. (1995). "New and priority taxa in the genera Cryptandra and Stenanthemum (Rhamnaceae) of Western Australia". Nuytsia. 10 (2): 256–259. Retrieved 25 August 2022.
  5. ^ "Cryptandra apetala". APNI. Retrieved 24 August 2022.
  6. ^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 134. ISBN 9780958034180.
  7. ^ "Cryptandra apetala var. anomala". Australian Plant Census. Retrieved 25 August 2022.
  8. ^ "Cryptandra apetala var. apetala". Australian Plant Census. Retrieved 25 August 2022.