Published in Feddes Repertitorium Specierum Novarum Regni Vegetabilis 20: 379- 380. 1924.
Plants that resemble Amitostigma tibeticum were seen and photographed on a study tour of the Alpine Garden Society, England, on the Xueshanliang above Huanglong, as published in The Alpine Gardener 70 (3): 268-269, 2002. We couldn't retrieve the plants so far and therefore their true identity remains unclear. The plants at the Xueshanliang were about 4 cm tall, grew at approx. 3800 m altitude and flowered in July. A. tibeticum seen by one of the authors at the Yulongxueshan, Northwest Yunnan, was about 12 cm tall and had a flower of 15 mm diameter. It flowered in early June at an altitude of 3300 m.
在英国高山植物园协会组织的一次科考旅行中,我们发现并拍摄到了一种与西藏无柱兰相似的植物,生长在黄龙上方的雪山梁。我们将这一发现发表在2002年的《高山园艺》上(70卷第3期,页码268-269),但后来却再也没有找到这些植株,因此它们确实的身份目前仍不清楚。这些植物高约4厘米,生长在海拔约3800米的地方,7月开花。而在云南西北部的玉龙雪山海拔约3300米的地方所发现的西藏无柱兰,植株高约12厘米,花直径15毫米,7月初开花。
植株高6-8厘米。块茎小,椭圆形或圆球形,长达5毫米,肉质。茎纤细,直立,光滑,基部具1-2枚筒状鞘,近基部具1枚叶。叶片披针形或倒披针状舌形,长2.5-3厘米,中部或上部宽5-6毫米,先端近急尖或稍钝,基部收狭成抱茎的鞘。花苞片长圆状披针形,先端近急尖,常与子房等长或稍较长,但短于花;子房圆柱状纺锤形,扭转,无毛,连花梗长7-10毫米;花单生于茎顶端,较大,近直立,深玫瑰红色或紫红色;萼片狭卵状长圆形,长约7毫米,先端极钝,具3脉,中萼片直立,稍凹陷,宽约3毫米;侧萼片上举,偏斜,宽约3.5毫米;花瓣狭卵形,偏斜,长6毫米,宽约3毫米,基部前侧边缘稍微增宽,先端钝,具2脉;唇瓣向前伸展,轮廓为倒卵形或心形,基部宽楔形,具距,中部或中部以上3裂,长8-9毫米,两侧裂片先端之间宽为7-8.5毫米,侧裂片斜卵状三角形,边缘具缺刻状的锯齿,先端尖,中裂片倒心形,边缘具钝的锯齿,先端具凹缺或切口,长4.5-6毫米,中部以上宽约5毫米;距近圆筒状,长8-9毫米,下垂,向前弯曲,距口部颇大,上部较粗,下部狭细,末端钝,较子房稍长;蕊柱粗短,直立,长约2毫米;花药直立,先端钝,药室近并行,长约1毫米;花粉团卵球形,具花粉团柄和粘盘,粘盘小,卵形;蕊喙小,直立,三角形;柱头2个,隆起,长方形;退化雄蕊2个,小,狭椭圆形。