Overview

Comprehensive Description

Miscellaneous Details

Notes: Cultivated as ornamental
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Distribution

Range Description

This an extremely widespread species through most of South East Asia. It is thought to be native to Brunei, Java and Kalimantan but has been introduced elsewhere including parts of Africa, South America and Hawaii. It is also thought to be native to the Philippines by some authors (Lock and Ford (2004) Hou et al. (1996),) although Merrill (1923) thought it may have been introduced. It is treated as native to this area in this assessment. Hou et al. (1996) also consider it to be native to 'Borneo' and specimens from here have also been included. However, the exact native range is obscure due to extensive cultivation.
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"Maharashtra: Pune Karnataka: Coorg, N. Kanara Kerala: Alapuzha, Kollam, Kozhikode, Kottayam, Malapuram, Thiruvananthapuram"
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Physical Description

Morphology

Physical Description

Perennial, Shrubs, Woody throughout, Stems erect or ascending, Stems 1-2 m tall, Stems greater than 2 m tall, Stems solid, Stems or young twigs sparsely to densely hairy, Stems hairs pilose or spreading, Leaves alternate, Leaves petiolate, Stipules conspicuous, Stipules green, triangulate to lanceolate or foliaceous, Stipules deciduous, Stipules free, Leaves simple, or appearing so, Leaf or leaflet margins entire, Leaflets lobed or hastate, Leaflets 1, Leaves hairy on one or both surfaces, Inflorescences racemes, Inflorescence axillary, Inflorescence terminal, Bracts conspicuously present, Bracteoles present, Flowers actinomorphic or somewhat irregular, Calyx 5-lobed, Calyx glabrous, Petals separate, Petals white, Banner petal narrow or oblanceolate, Wing petals narrow, oblanceolate to oblong, Stamens 9-10, Stamens completely free, separate, Filaments glabrous, Filaments hairy, villous, Style terete, Fruit a legume, Fruit stipitate, Fruit unilocular, Fruit freely dehiscent, Fruit elongate, straight, Fruit fleshy, Fruit coriaceous or becoming woody, Fruit exserted from calyx, Fruit glabrous or glabrate, Fruit 3-10 seeded, Fruit 11-many seeded, Seeds ovoid to rounded in outline, Seed surface smooth, Seeds olive, brown, or black.
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Dr. David Bogler

Source: USDA NRCS PLANTS Database

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Diagnostic Description

Diagnostic

Habit: Shrub
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This shrub is found in well-drained and sunny places on hillsides and plains and in dry dipterocarp forests. It grows on a variety of soils and is a species of secondary forest (UNEP 2008).

Systems
  • Terrestrial
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
Chadburn, H.

Reviewer/s
Hilton-Taylor, C.

Contributor/s

Justification
The extent of occurrence (EOO) for this species exceeds the threshold for a threatened category. It is difficult to estimate the area of occupancy (AOO) and population size as the exact native range is obscure due to extensive cultivation. It is inferred to exceed the threatened thresholds. It is assessed as Least Concern.
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Population

Population
No population data is available for this species. It is, however, inferred to exceed critical thresholds, as it has a wide geographic range and occurs in a variety of habitats, including secondary forest.

Population Trend
Stable
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Threats

Major Threats
This species has only the general threats associated habitat loss and degradation as a result of expanding human populations.
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Management

Conservation Actions

Conservation Actions
No specific conservation measures are in place for this species. It was not found in available lists for seed bank collections but it is listed as present in the Hong Kong botanic gardens and it is widely cultivated. It is also listed as a species of Thung Yai Naresuan Wildlife Sanctuary, Thailand (UNEP 2008) although this is not part of its native range.
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Wikipedia

Bauhinia acuminata

Bauhinia acuminata is a species of flowering shrub native to tropical southeastern Asia. Common names include: Dwarf White Bauhinia, White Orchid-tree and Snowy Orchid-tree and শ্বেত কাঞ্চন(Bengali). The exact native range is obscure due to extensive cultivation, but probably from Malaysia, Indonesia (Java, Borneo, Kalimantan, Lesser Sunda Islands), and the Philippines.[1]

It grows two to three meters tall. Like the other Bauhinia species, the leaves are bilobed, shaped like an ox hoof; they are 6 to 15 centimeters long and broad, with the apical cleft up to 5 cm deep; the petiole is 1.5 to 4 centimeters long. The flowers are fragrant, 8 to 12 centimeters in diameter, with five white petals, ten yellow-tipped stamens and a green stigma. The fruit is a pod 7.5 to 15 centimeters long and 1.5 to 1.8 centimeters broad. The species occurs in deciduous forests and scrub.[2][3][4]

It is widely cultivated throughout the tropics as an ornamental plant. It may be found as an escape from cultivation in some areas, and has become naturalised on the Cape York Peninsula, Australia.[2]

Gallery[edit]

References[edit]

  1. ^ Germplasm Resources Information Network: Bauhinia acuminata
  2. ^ a b Pacific Island Ecosystems at Risk: Bauhinia acuminata
  3. ^ Flowers of India: White Orchid Tree
  4. ^ Huxley, A., ed. (1992). New RHS Dictionary of Gardening. Macmillan ISBN 0-333-47494-5.
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