Overview

Comprehensive Description

Brief

Flowering class: Monocot Habit: Herb
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Distribution

National Distribution

United States

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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"
Global Distribution

Indo-Malesia

Indian distribution

State - Kerala, District/s: Kottayam, Idukki, Palakkad, Thiruvananthapuram, Thrissur, Wayanad

"
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Himalaya (Nepal to Bhutan), Assam, India, Burma, Thailand, S. China, Malaysia, Tahiti.
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Physical Description

Morphology

Elevation Range

400-900 m
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Diagnostic Description

Diagnostic

"Erect stout terrestrial plants; stem to 2 m tall, terete. Leaves distichous, linear-lanceolate, to 8 x 2 cm, persistent. Flowers about 4 cm across, pink-purple, in terminal few-flowered racemes or short panicles; sepals free, similar, ovate-lanceolate, 3.5 x 1 cm; petals broader than the sepals, rhomboid, elliptic, 3.5 x 2 cm; lip trumpet shaped, enclosing the column, bilobed at apex, margin crenulate, midlobe with lamellae, purple with white shades at base; column long, narrowly winged; pollinia 8, lenticular."
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Ecology

Habitat

General Habitat

Among rocks in grasslands
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Life History and Behavior

Cyclicity

Flowering and fruiting: July-September
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Arundina graminifolia

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Barcode data: Arundina bambusifolia

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Statistics of barcoding coverage: Arundina bambusifolia

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
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Statistics of barcoding coverage: Arundina graminifolia

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 7
Specimens with Barcodes: 7
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: NNA - Not Applicable

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NatureServe Conservation Status

Rounded Global Status Rank: GNR - Not Yet Ranked

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Wikipedia

Arundina

The bamboo orchid, Arundina graminifolia, is a species of orchid and the sole accepted species of the genus Arundina. This tropical Asiatic genus extends from India, Sri Lanka, Nepal, Thailand, Vietnam, the Ryukyu Islands, Malaysia, Singapore, China to Indonesia, the Philippines and New Guinea. It has become naturalized in Réunion, Fiji, French Polynesia, Micronesia, the West Indies, Costa Rica, Panama and Hawaii.[3][5]

Description[edit]

Arundina graminifolia is a terrestrial, perennial orchid with reedy stems, forming into large clumps growing to a height between 70 cm and 2 m.

The plaited linear leaves are oblong lanceolate, with a length of 9 to 19 cm and a width of 0.8 to 1.5 cm. The apex is acuminate. There are amplexicaul (clasping the stem) sheathing stipules.

Bamboo Orchid, Fraser's Hill, Malaysia


This orchid blooms in summer and autumn, showing rather open clusters of showy terminal flowers, ten at the most. They bloom in succession on the terminal racemes, which are 7 to 16 cm long. These flowers, 5 – 8 cm in diameter, are a rosy lilac and white disk with a purple lip. The bracts are wide triangular and surround the main stalk of the flower cluster. The occasional fertilized seed pods contain minute powdery seeds, and small plants often develop near the cane ends after flowering, and likely aid in propagation if allowed to reach the soil.

With only 200 of the plant to be recorded growing naturally in Singapore, the species is close to extinction there, largely caused by the destruction of its natural habitat, namely the rainforests and mangrove forests. The remaining plants, commonly called Tapah weeds, can be found in the secondary forests or at the forest fringes. It is however very common in road cuts and other disturbed areas in full sun in Sarawak, East Malaysia, where it often is the most common flowering plant to be seen along the roadsides.

Varieties[edit]

Two varieties are currently recognized (May 2014):[3]

References[edit]

  1. ^ Blume, Carl (Karl) Ludwig von. 1825. Bijdragen tot de flora van Nederlandsch Indië 8: 401
  2. ^ lectotype designated by Garay et Sweet, Orchids S. Ryukyu Islands 52. 1974
  3. ^ a b c Kew World Checklist of Selected Plant Families, Arundina graminifolia
  4. ^ Kew World Checklist of Selected Plant Families, Arundina graminifolia subsp. graminifolia
  5. ^ US Department of Agriculture Plants profile
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