Cryptandra congesta

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Cryptandra congesta
Status DECF P4.svg
Priority Four — Rare Taxa (DEC)
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rhamnaceae
Genus: Cryptandra
Species:
C. congesta
Binomial name
Cryptandra congesta

Cryptandra congesta is a flowering plant in the family Rhamnaceae and is endemic to a restricted area of the south-west of Western Australia. It is a low, spreading shrub with narrowly egg-shaped or narrowly oblong leaves and clusters of white, tube-shaped flowers.

Contents

Description

Cryptandra congesta is a spreading shrub that typically grows to a height of 10–30 cm (3.9–11.8 in), its young stems covered with simple hairs. The leaves are narrowly egg-shaped to narrowly elliptic, 2.0–3.3 mm (0.079–0.130 in) long and 0.6–0.9 mm (0.024–0.035 in) wide, on a petiole 0.5–0.7 mm (0.020–0.028 in) long. The upper surface of the leaves is glabrous and there are minute teeth on the edges, especially near the tips. The flowers are borne in groups of 5 to 12 on the ends of short side-shoots in head-like groups 5.0–8.5 mm (0.20–0.33 in) wide. The floral tube is 1.3–1.7 mm (0.051–0.067 in) long and joined at the base for 0.4–0.5 mm (0.016–0.020 in). The sepals are 0.8–1.8 mm (0.031–0.071 in) long and densely hairy near the tip, but otherwise glabrous. Flowering occurs from April to October. [2]

Taxonomy and naming

Cryptandra congesta was first formally described in 1995 by Barbara Lynette Rye and the description was published in the journal Nuytsia . [2] [3] The specific epithet (congesta ) means "crowded", referring to the flowers. [4]

Distribution and habitat

This cryptandra grows on granite, but is only known from a small area north of Denmark in the Jarrah Forest bioregion of south-western Western Australia. [5]

Conservation status

This cryptandra is listed as "Priority Four" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, [5] meaning that it is rare or near threatened. [6]

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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.

<i>Pimelea cracens</i> Species of flowering plant

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<i>Spyridium oligocephalum</i> Species of shrub

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<i>Cryptandra connata</i> Species of flowering plant

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<i>Spyridium riparium</i> Species of shrub

Spyridium riparium is a species of flowering plant in the family Rhamnaceae and is endemic to the south of Western Australia. It is an erect shrub, usually with narrowly egg-shaped leaves, and clusters of densely hairy, white or cream-coloured flowers.

Cryptandra craigiae is a flowering plant in the family Rhamnaceae and is endemic to a restricted area of southern Western Australia. It is a shrub with linear leaves and dense clusters of white or cream-coloured, tube-shaped flowers.

References

  1. ↑ "Cryptandra congesta". Australian Plant Census. Retrieved 24 October 2022.
  2. 1 2 Rye, Barbara (1995). "New and priority taxa in the genera Cryptandra and Stenanthemum (Rhamnaceae) of Western Australia". Nuytsia. 10 (2): 265–267. Retrieved 24 October 2022.
  3. ↑ "Cryptandra congesta". APNI. Retrieved 24 October 2022.
  4. ↑ Sharr, Francis Aubi; George, Alex (2021). Western Australian Plant Names and Their Meanings (4th ed.). Kardinya, WA: Four Gables Press. p. 168. ISBN   9780958034180.
  5. 1 2 Paczkowska, Grazyna. "Cryptandra congesta". Florabase-the Western Australian Flora. Department of Biodiversity, Conservation and Attractions. Retrieved 24 October 2022.
  6. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 24 October 2022.
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