Begonia burkillii var. deergongensis, A New Berry-fruited
Variety of Begonia (sect. Platycentrum) from Xizang of China

doi:10.3969/j.issn.1009-7791.2026.01.010

Subtropical Plant Science ›› 2026, Vol. 55 ›› Issue (1): 92-96.DOI: 10.3969/j.issn.1009-7791.2026.01.010

• Research articles • Previous Articles Next Articles

Begonia burkillii var. deergongensis, A New Berry-fruited Variety of Begonia (sect. Platycentrum) from Xizang of China

WANG Wen-guang¹, WANG Zhong-xuan², XI Hou-cheng¹, XI Hui-peng¹, MA Xing-da¹, SHEN Jian-yong^1*

(1. Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303, Yunnan China; 2. Beijing Florascape Co, Ltd, Beijing 100044, China)

Received:2025-12-12 Accepted:2026-01-09 Online:2026-02-28 Published:2026-02-28
Contact: SHEN Jian-yong

中国西藏一浆果类秋海棠科植物新变种——德尔贡秋海棠

王文广¹，王中轩²，郗厚诚¹，席会鹏¹，马兴达¹，申健勇^1*

(1. 中国科学院西双版纳热带植物园，云南勐腊 666303；2. 北京花木有限公司，北京 100044)

通讯作者: 申健勇
基金资助:
中国科学院西双版纳热带植物园十四五规划主攻方向：国家重点保护野生植物迁地保护与国家植物园体系建设(E3ZKFF8B)

Abstract

Abstract: Begonia burkillii Dunn var. deergongensis W. G. Wang, Z. X. Wang & J. Y. Shen, a new variety with berry-like fruits, from Medog County, Xizang, China, is here confirmed and described. The new variety shows morphological similarities most similar to B. burkillii, but can be significantly distinguished from B. burkillii by its grooved petiole. The staminate flowers have 2(–4) tepals, while the pistillate ones have 2 tepals, and the tepal apices are rounded and obtuse. It is also similar to B. handelii, yet differs clearly by the short, slender rhizome and the red spots on the petiole, tepals, and ovary, as well as by having 2(–4) tepals in staminate and 2 tepals in pistillate flowers. Detailed notes on morphology, distribution, and phenology, as well as colour photographs, are provided. The conservation status of the new variety is assessed in accordance with the Guidelines for Using the IUCN Red List Categories and Criteria.

Key words: Begoniaceae, berry-fruit, China, Xizang, new variety, morphological characteristics

摘要： 本文描述了中国西藏墨脱县发现的浆果类秋海棠属植物一新变种——德尔贡秋海棠Begonia burkillii Dunn var. deergongensis W. G. Wang, Z. X. Wang & J. Y. Shen。该变种在形态上与伯基尔秋海棠B. burkillii最近似，但其叶柄有凹槽，雄花花被片2（–4）枚，雌花花被片2枚，花被片顶端圆钝；其次也近似于香花秋海棠B. handelii，但其根状茎短、纤细，叶柄、花被片和子房有红斑，雄花花被片2（–4）枚，雌花花被片2枚，可明显区分。文中提供该变种详细的形态学描述、地理分布、物候特征及彩色图片，并依据《IUCN红色名录分类与标准指南》评估其保护等级。

关键词: 秋海棠科, 浆果类, 中国, 西藏, 新变种, 形态特征

CLC Number:

Q949

WANG Wen-guang, WANG Zhong-xuan, XI Hou-cheng, XI Hui-peng, MA Xing-da, SHEN Jian-yong.

Begonia burkillii var. deergongensis, A New Berry-fruited Variety of Begonia (sect. Platycentrum) from Xizang of China [J]. Subtropical Plant Science, 2026, 55(1): 92-96.

王文广, 王中轩, 郗厚诚, 席会鹏, 马兴达, 申健勇. 中国西藏一浆果类秋海棠科植物新变种——德尔贡秋海棠[J]. 亚热带植物科学, 2026, 55(1): 92-96.

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Begonia burkillii var. deergongensis, A New Berry-fruited Variety of Begonia (sect. Platycentrum) from Xizang of China

中国西藏一浆果类秋海棠科植物新变种——德尔贡秋海棠

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