Olearia aglossa

Olearia aglossa, is a shrub in the family Asteraceae and is found in mountainous terrain in New South Wales and Victoria in Australia. It is a small shrub with spreading upright branches and white daisy-like flowers.

Olearia aglossa
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Asteraceae
Genus:
Olearia
Species:
O. aglossa
Binomial name
Olearia aglossa
(Betche & Maiden) Lander[1]

Description

Olearia aglossa is a shrub to about 2.5 m (8.2 ft) high. The ascending branchlets are light brown becoming grey and thickly covered with soft very small T-shaped hairs. Leaves are arranged opposite, are narrow to egg-shaped, 24–90 mm (0.94–3.5 in) long and 8–27 mm (0.31–1.1 in) wide. The leaf upper surface is dark green, flat, smooth and ending in a point. The leaf underside is grey or brownish in colour and densely covered with short, soft, matted hairs. The leaves have a leathery texture, with an obscure network of veins and the margin slightly rolled under. The leaf stalk about 12 mm (0.47 in) long. The flower head is 4–20 mm (0.16–0.79 in) in diameter. The inflorescence is on a stalk up to 25 mm (0.98 in) long. The bracts are narrow, cone shaped 4.5–5.5 mm (0.18–0.22 in) long, 4-6 arranged in rows and covered with dense flat hairs, occasionally fringed. The white flower petals are about 4.4–10 mm (0.17–0.39 in) long with 4 flowers in each cluster. The floret centres are yellow. The fruit is dry, narrowly egg-shaped, one seeded, 1.3–2 mm (0.051–0.079 in) long. The white flowers appear from December to February.[2][3][4]

Taxonomy and naming

Olearia aglossa was first formally described in 1991 by Nicholas Lander and the description was published in the journal Telopea.[4][5] The specific epithet (aglossa) is derived from the Ancient Greek word glossa meaning "tongue"[6]:805 with the prefix "a-" meaning "not" or "without",[6]:561 referring to the absence of a distinct ligule on the marginal florets.[4]

Distribution and habitat

This species in found in the Southern Tablelands, south from the Kosciuszko National Park in New South Wales and is a rare species in the Victorian Alps. It grows in mountainous locations in dry sclerophyll forest.[3][4]

References
  1. "Olearia aglossa". Australian Plant Census. Council of Heads of Australasian Herbaria. Retrieved 13 May 2019.
  2. "Olearia aglossa". VICFLORA-Flora of Victoria. Royal Botanic Gardens Victoria. Retrieved 13 May 2019.
  3. Lander, N.S. "Olearia aglossa". NSW FLORA ONLINE. PlantNET NSW. Retrieved 13 May 2019.
  4. Lander, Nicholas (1 March 1991). "New taxa and new combinations in Olearia (Asteraceae: Astereae) from south-eastern Australia". Telopea. 4 (2): 145–164. doi:10.7751/telopea19914924.
  5. Lander, N.S. "Olearia aglossa". APNI. Retrieved 13 May 2019.
  6. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.
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