Wú Xīchóu 吳錫疇 (1215–1276), zì Yuánlún 元倫, hào Lángāo 蘭臯 (“Orchid-Bank”), was a late-Sòng poet, recluse-scholar, and ZhūXī Neo-Confucian of Xiūníng 休寕 in Huīzhōu 徽州 (modern Ānhuī). He was the grand-nephew of Wú Jǐng 吳儆 (a senior Southern-Sòng prefectural-and-pacification official and compiler of the Zhúzhōu jí 竹洲集) and the son of the recluse-scholar Wú Hòu 吳垕. Orphaned at the age of four, Wú modeled his moral development on the Hàn-era recluses Xú Zhì 徐稚 and Máo Róng 茅容. He studied under Chéng Ruòyōng 程若庸, a third-generation transmitter of the Zhū Xī school, and received an orthodox Neo-Confucian formation in the Wǎnshān–Xīnān 婺源新安 lineage. In the Xiánchún era (1265–74) the prefect of Nánkāng 南康, Yè Cháng 葉閶, invited him to be head (tángzhǎng 堂長) of the White-Dragon-Cave Academy 白龍洞書院 at Lúshān 廬山, but he declined. He grew orchids in his Xiūníng dwelling and adopted Lángāo as his sobriquet. His verse, hailed in his own time by such figures as Lǚ Wǔ 吕午, Fāng Yuè 方岳, Lù Mèngfā 陸夢發, and Luó Yǐ 羅椅, achieved a calm, plain manner especially in his late Shānjū záyán 山居雜言 series. He died in 1276, the year the Yuán took Lín’ān. Compiled works in the Kanripo corpus: KR4d0377 Lángāo jí 蘭臯集 — his self-edited late selection of poetry, with a 1271 preface by Lù Mèngfā.