Geodorum densiflorum, commonly known as pink nodding orchid[2] or 地宝兰 (di bao lan),[3] is a plant in the orchid family and is native to areas from tropical Asia to eastern Australia and some Pacific Islands. It is a terrestrial orchid with broad, pleated, dark green to yellowish leaves and up to and twenty pale pink flowers with dark red veins on the labellum. It grows in wetter habitats including rainforest, woodlands, grasslands and swamps.
Geodorum densiflorum is a leafy, terrestrial herb with crowded pseudobulbs 30–50 mm (1–2 in) long and 20–30 mm (0.8–1 in) wide. There are between three and five dark green to yellowish pleated leaves 250–350 mm (9.8–14 in) long and 60–80 mm (2–3 in) wide with a stalk 20–80 mm (0.8–3 in) long. Between eight and twenty resupinate, pale pink flowers 18–20 mm (0.7–0.8 in) wide are borne on a flowering stem 200–400 mm (8–20 in) long. The flowers do not usually open widely. The sepals are 10–12 mm (0.4–0.5 in) long, 3–4 mm (0.1–0.2 in) wide and the petals are a similar length but wider. The labellum is pink with dark red veins, 10–11 mm (0.39–0.43 in) long and 5–10 mm (0.2–0.4 in) wide with the sides curved upwards. Flowering occurs between December and February in Australia and between June and July in Asia.[3][4][5][6]
This species was first formally described in 1792 by Jean-Baptiste Lamarck who gave it the name Limodorum densiflorum and published the description in the Encyclopédie Méthodique, Botanique.[7][8] In 1919, Rudolf Schlechter changed the name to Geodorum densiflorum.[9] The specific epithet (densiflorum) is derived from the Latin words densus meaning "thick", "close" or "compact"[10]: 790 and flos meaning "flower".[10]: 45
Geodorum densiflorum has been reported from India, Nepal, Bangladesh, Bhutan, Sri Lanka, Assam, Myanmar, Andaman & Nicobar Islands, Thailand, Vietnam, Ryukyu Islands, Ogasawara Islands, Guangdong, Guangxi, Guizhou, Hainan, Sichuan, Taiwan, Yunnan, Malaysia, Indonesia, Philippines, New Guinea, Australia, the Solomons, the Bismarcks, Fiji, Niue, New Caledonia, Samoa, Tonga, Vanuatu, and Micronesia. It grows in a range of mostly wet habitats including rainforests, forests and grassland.[1][3][4]
In Australia, the species occurs in Western Australia, northern parts of the Northern Territory and from Cape York in Queensland to the Macleay River in New South Wales.[4]
Geodorum densiflorum is listed as "endangered" under the New South Wales Government Threatened Species Conservation Act 1995. The main threats to the species are habitat loss, weed invasion and trampling.[2][6]
Geodorum densiflorum, commonly known as pink nodding orchid or 地宝兰 (di bao lan), is a plant in the orchid family and is native to areas from tropical Asia to eastern Australia and some Pacific Islands. It is a terrestrial orchid with broad, pleated, dark green to yellowish leaves and up to and twenty pale pink flowers with dark red veins on the labellum. It grows in wetter habitats including rainforest, woodlands, grasslands and swamps.
Geodorum densiflorum es una especie de orquídea de hábito terrestre originaria de Asia.
Es una orquídea de tamaño mediano, que prefiere el clima, caliente, con hábito creciente terrestre. Tiene pseudobulbos esféricos que llevan de 2 a 5 hojas, lanceoladas a oblongo-elípticas, plegadas y pecioladas. Florece en el otoño y la primavera con una inflorescencia erecta, basal, de 10 a 25 cm desde el principio y extendida de 30 a 40 cm con de 10 a 25 flores con el raquis corto y flores de cera, que se agolpaban en el vértice.[1]
Esta especie se encuentra en Cantón, Guangxi, Guizhou, Hainan, Sichuan y Yunnan de China y en Assam, Bangladés, India, Sri Lanka, las Islas Andaman, Birmania, Tailandia, Laos, Camboya, Vietnam, Hong Kong, Borneo, Java, Sumatra, Malasia, islas de la Sonda, Islas Molucas, Célebes, Filipinas, Islas Bismark, Nueva Guinea, Islas Salomón, Queensland, Australia Occidental, Fiyi, Niue, Nueva Caledonia, Samoa, Tonga, Vanuatu, Islas Carolinas, Islas Marianas y Taiwán en los pastizales húmedos, zonas de arena detrás de las playas y selvas tropicales, así como en los bosques semideciduos y caducifolios secos de tierras bajas y bosques de sabana en las elevaciones desde el nivel del mar de hasta 1800 metros.
Geodorum densiflorum fue descrita por (Lam.) Schltr. y publicado en Repertorium Specierum Novarum Regni Vegetabilis, Beihefte 4: 259. 1919.[2]
Geodorum densiflorum là một loài thực vật có hoa trong họ Lan. Loài này được (Lam.) Schltr. mô tả khoa học đầu tiên năm 1919.[1]
Geodorum densiflorum là một loài thực vật có hoa trong họ Lan. Loài này được (Lam.) Schltr. mô tả khoa học đầu tiên năm 1919.
垂頭地寶蘭(学名:Geodorum densiflorum)为蘭科地寶蘭屬下的一个种。
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