I investigated a bit. Isn't the gastrodia this one instead?
Seems very similar to the Yunnan's one... Found in Flora of China on the web
Gastrodia peichatieniana S. S. Ying, Coloured Ill. Fl. Taiwan
2: 690. 1987 [“peichatieniana” and “peichiatieniana”].
北插天天麻 bei cha tian tian ma
Gastrodia autumnalis T. P. Lin.
Plants 10–40 cm tall. Rhizome 1.8–2.6 cm, 0.5–0.8 cm in diam., fleshy, villous. Peduncle pale whitish brown, 20–32 cm, 3- or 4-noded, with several sheaths at base; sheaths not persistent; rachis 1–6 cm, subdensely 2–8-flowered; floral bracts pale brown, narrowly oblong-ovate, 2.5–4 mm, apex acute. Flowers erect, not resupinate, not opening widely, white, sometimes
tinged brown; pedicel and ovary white, tinged pale brown, 7–9 mm; pedicel elongating in fruit. Perianth tube cylindric, 5–8 mm, slender, lacking a deep sinus between lateral sepals, outer
surface smooth; free portion of sepals deltoid, 0.8–1.5 mm, margin crisped; free portion of petals elliptic or suborbicular, smaller than sepal lobes, margin crisped; lip connate with perianth tube for most of its length, only apical portion free; free portion of lip exserted at sinus between lateral sepals, simple, ovate, slightly concave, small, glabrous, sometimes absent. Column 4–6 mm, with glandular spots on ventral surface toward base; column wings 1–1.5 mm wide; column foot short. Capsule ellipsoid, to 20 mm. Fl. Oct.
● Forests; 900–1500 m. C and N Taiwan.
This species has a petaloid lip. It may well represent a peloric form of a species such as Gastrodia menghaiensis.
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