Dendrobium chrysanthum Lindl.

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Morphological characteristics
Dendrobium chrysanthum Lindl. is a herbaceous plant. Stems thick, succulent, drooping or drooping, cylindrical, 50-200 cm long, 5-15 mm thick, upper sometimes slightly recurved crenate, unbranched, with multiple nodes, internodes 3-4 cm long, dry After light yellow or tan. Leaves two, alternate throughout the entire stem, papery, oblong-lanceolate, usually 13-19 cm long, 1.5-4.5 cm wide, apex acuminate, base sheathing; Shape open, often pale white.
Inflorescences nearly inflorescences inflorescences, each 2-6-flowered, lateral leaves on top of stems; bracts membranous, ovate-triangular, ca. 3 mm; pedicel and ovary slightly flattened, 3.5-6 Cm, ca. 2 mm; flowers yellow, thick; middle sepals somewhat concave, oblong or elliptic, 15-20 mm long, 9-11 mm wide, apex obtuse, with 7 veins; Ovary triangular, 15-20 mm long, slightly crooked and wide base, width 10-12 mm, apex obtuse, with 7 veins; calyx capsule wide and dull, about 4 mm.
Petals slightly concave obovate, 16-22 mm long, 11-14 mm wide, apex rounded, entire or sometimes finely oblong, with 7 veins; valgus concave, not cleft, kidney-shaped or horizontally long Round, ca. 18 mm, ca. 22 mm, apex suborbicular, base with 1 oblong corpus callose and abruptly narrowly clawed shortly clavate, densely covered shortly pubescent below, below densely pubescent pubescent below middle; Lip plate on each side of a chestnut patch, with a generous ridge extends from the base to the middle; pistil length of about 4 mm, with a ca. 6 mm pistil feet; cap conical, length of about 2. 5 mm, almost smooth, anterior margin nearly entire. Capsule long cylindrical, 7 cm long, roughly 1.5 cm thick. Flowering from September to October.
Habitat habitat
Born in the mountain jungle at an altitude of 700-2500 meters above the trunk or on the damp rock in the valley. Guangxi, southwest to southwest (Xingyi, Anlong, Luodian, Guanling), southeastern Yunnan Province (Baise, Germany Paul, Longlin, Lingyun, Jingxi, Tianlin, Nandan) To the southwest (Malipo, Yanshan, Pingbian, Shek Ping, Green Spring, Mengla, Menghai, Lancang, Zhenkang, Lincang), southeastern Tibet (Medog). Distributed in northwestern India via Nepal, Sikkim, Bhutan, northeast India, Myanmar, Thailand, Laos, Vietnam. Specimens were taken from Nepal.
Growing habits
Dendrobium chrysanthum Lindl. is a kind of hi perennial herbs like hi, like in the warm, humid, with an annual rainfall of more than 1000 mm, half-shade half-sun environment, the average January temperature above 8 ℃ in the growth of subtropical forests is better , Suitable for growing temperature of 15 to 28 degrees, suitable for growing air humidity above 60%, less demanding on soil fertility, wild and more in the loose and thick bark or trunk growth, and some also grow in the crevice. Is an aerial root, the main requirements of the root permeability is good, the best substrate to breathe air ventilation, in the appropriate temperature and humidity, fast growth, survivability is very strong. Spring and early summer each year, biennial stems on the section of the inflorescence, flowering stems grow into new stems into stems, autumn and winter into the dormant period.