the flowers of dendrobium thyrsiflorum

inflorescence thyrsiflorum orchidaceae cylindrical dendrobium unbranched lanceolate wildflower perennial epiphytic obliquely narrowing alternate laterally fragrance flowering leathery drooping fruiting december flowers upright densely blossom produce family robust leaves oblong packed yellow period flower nature orchid rchbf genus thick shape nodes upper grows light april plant petal shrub green tulip herb stem base thin july leaf lily old