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Twin-leaved coogara
Plate 1 of 8. (c) Craig Robbins, some rights reserved (CC BY-NC), uploaded by Craig Robbins · via iNaturalist

Twin-leaved coogara

Arytera distylis

Arytera distylis, known as the two-leaved coogera or twin-leaved coogera is a rainforest tree of eastern Australia. It grows by streams or in seaside rainforests. It occurs from the Orara River in the Mid North Coast region of New South Wales, extending up to Maryborough in southeast Queensland.

The twin leaf foliage makes identification of this plant fairly straightforward. The generic name Arytera is from the Ancient Greek for 'cup', referring to the cup-shaped fruit valves. The specific epithet distylis is from Latin and refers to the two styles in the flower.

Continue reading on Wikipedia

From the article Arytera distylis on Wikipedia (CC BY-SA), quoted section by section

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Description

A small tree with a dense, pale green crown, occasionally reaching a height of over 20 metres (60 ft) tall, and a stem diameter of 35 cm (14 in). The base of the tree is flanged or buttressed. The trunk shape is irregular with smooth greyish bark. Young shoots on the small branches are noticeably hairy.

Leaves. The leaves are pinnate and alternate, of one to four un-toothed leaflets; however, they are usually of two leaflets, hence the common name. Leaflet shape varies, being ovate-oblong, lanceolate or elliptical. The leaf tip can be notched or fairly blunt. Leaflets are 4 to 8 cm long and 1.5 to 3.5 cm wide. The leaflet stalk is dark and can be up to 6 mm long. The main leaf stalk is from 9 to 18 mm long. Leaf veins are noticeable on both sides. Three to six hairless domatia form where the lateral veins meet the leaf's midrib.

Flowers, fruit and regeneration. Small flowers form between September and October, being cream in colour, on small, hairy panicles. Occasionally, the female flower forms on a raceme. The fruit is an orange-yellow dry capsule, 9 to 13 mm long, maturing from October to February. Inside the capsule are one to three hairy lobes, with one seed per lobe. Seeds are relatively large, 9 mm long, partially covered in an orange or red aril. Seeds are eaten by rainforest birds, including the figbird and regent bowerbird. Fresh seed is recommended for planting. …

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Where it lives

Recorded sightings

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geo-referenced records in GBIF, from museums, herbaria and field observers.

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In the stacks

Searching the stacks…

Every page naming Arytera distylis in the Biodiversity Heritage Library →

This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 531496.