论文部分内容阅读
白及(Bletilla striata (Thunb.) Reichb. f.)也称箬兰等,为兰科白及属多年生草本。一般国兰花瓣多为青色,而白及则为紫红色。白及是陆生兰,高30～70厘米,块茎肥厚肉质,呈三角状扁球形或不规则菱形,富含粘液;直径1～3厘米,黄白色,长有灰白色纤维须根,常数个相连。茎粗壮直立。叶3～5片基生,披针形或宽披针形,色绿,长15～30厘米,宽1.5～4厘米。总状花序顶生,花3～8朵疏生于花轴上,序轴长4～12厘米,常作“之”字形弯曲。花紫红或淡红色,直径3～4厘米;蒴果圆柱形,长3.5厘米,直径约1厘米,两端稍尖,种子细小。花期4～5月,果期7～9月。白及分布在我国东南至西南部,日本也有野生。喜温暖、稍阴湿环境,江南可露地越冬。耐阴性强,忌强光直射。栽植宜用富含腐殖质、排水良好的砂质
Baihe (Bletilla striata (Thunb.) Reichb. f.) also known as Cymbidium, etc., is Orchidaceae and is a perennial herb. In general, the petals of the Chinese orchids are mostly blue, while those of the white orchids are purple. White and terrestrial blue, 30 to 70 cm high, tuber hypertrophy fleshy, triangular-angled spherical or irregular diamond-shaped, rich in mucus; diameter of 1-3 cm, yellow-white, long gray fiber filament roots, constant connected. The stems are stout and erect. Leaves 3 to 5 basal, lanceolate or broadly lanceolate, greenish, 15 to 30 cm long and 1.5 to 4 cm wide. Inflorescences terminal, flowers 3 to 8 sparse on the flower axis, order axis length 4 to 12 cm, often for the “zigzag”-shaped bend. Flowers purplish red or light red, 3 to 4 cm in diameter; capsules cylindrical, 3.5 cm long, 1 cm in diameter, slightly pointed at both ends, and fine seeds. Flowering from April to May and fruiting from July to September. White and distributed in southeast China to the southwest, Japan also has wild. Hi warm, slightly damp environment, Jiangnan exposed winter. Strong negative resistance, avoid direct light. Plant suitable humus-rich, well-drained sandy