Dendrobium loddigesii Rolfe
The stem of Dendrobium loddigesii Rolfe is delicate, often drooping, thin cylindrical, 10-45 cm long, about 3 mm thick, sometimes branched, with multiple nodes; The internodes are 1.5-2 centimeters long and turn golden yellow after drying. Leaf paper, two rows, alternate throughout the stem, tongue shaped, oblong lanceolate or slightly obliquely elongated circular, usually 2-4 cm long and 1-1.3 cm wide, with a sharp and slightly hooked tip, a sheath at the base, and raised leaf veins on the upper surface in a grid like pattern after drying; The leaf sheath is membranous and often opens after drying.
The flowers are white or purple red, with 1-2 flowers per bundle growing laterally on the upper part of the old stem with leaves; The inflorescence stalk is 2-3 millimeters long, and the base is covered with 1-2 short, cup-shaped membranous sheaths; Bracts membranous, ovate, about 2 mm long, apex blunt; The flower stem and ovary are light green, measuring 2-3 centimeters in length; Sepals ovate oblong, 1.7-2 cm long, about 7 mm wide, apex acute, with 5 veins; Lateral sepals lanceolate, 1.7-2 cm long, 6-7 mm wide, apex acute, base oblique, with 5 veins; The calyx sac is nearly spherical and approximately 5 millimeters long. Petals elliptical, equal in length to the sepals, 8-9 millimeters wide, slightly blunt apex, entire margin, with 3-5 veins; The lips are nearly circular, with a diameter of 1.7-2 centimeters. The upper part is golden yellow in color, with a light purple red color around it, slightly concave, and the edges have short tassels. Both sides are covered with short hairs; The stamen is white, with red stripes on both sides of the front, about 4 millimeters long; The medicine cap is white, nearly conical in shape, densely covered with fine papillary hairs, and has irregular teeth at the front edge. The flowering period is from April to May.