Townsonia viridis Schltr.

Beech orchid (en)

Species

Angiosperms > Asparagales > Orchidaceae > Townsonia

Characteristics

Leaves erect, 6–15 × 5–8 mm, pale green to yellowish, thin-textured, margins crinkled, on petioles 30–50 mm long; in flowering plants leaf attached to flower stem well above soil level. Flower stem 50–150 mm long, fleshy, brittle, 1–4-flowered. Flowers horizontal or nodding, 5–7 × 6–8 mm, green with red markings. Dorsal sepal 6.5–8 × 4 mm, hooded over column. Lateral sepals 6.5–8 × 2 mm, projecting forwards or decurved. Petals c. 2.5 × 1 mm, spreading or decurved. Labellum broadly heart-shaped, 5–5.5 × 5–6 mm, blunt, very smooth, folded along mid-line, minutely papillate near apex, tip deflexed. Callus of 2 obscure central plates.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
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Root system rhizome
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Environment

Relatively widespread and common in the west of Tas., but generally localised and habitat-specific. It grows in permanently wet forests, especially myrtle beech forest and rainforest; less commonly in tall, wet sclerophyll forest. The plants form small colonies in substrates that are continually moist, including pads of thick moss and liverworts on the bases of trees and rocks, on rotting logs and in accumulations of decaying beech leaves. 
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Hardiness (USDA) 7-10

Usage

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Cultivation

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Distribution

Townsonia viridis world distribution map, present in Australia and New Zealand

Identifiers

LSID urn:lsid:ipni.org:names:660387-1
WFO ID wfo-0000326423
COL ID 57L96
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Acianthus viridis Townsonia viridis