Section：Paracamellia
Conservation Status：Near Threatened
Remarks：
This species is accepted
References：
Camellia hengchunensis C.E.Chang Bull. Taiwan Prov. Pingtung Inst. Agric. 12: 13 (1971) Accepted Name
Camellia hengchunensis Su, M. & Rivers, M.C. 2015. Camellia hengchunensis. The IUCN Red List of Threatened Species 2015: e.T32103A76510318. https://dx.doi.org/10.2305/IUCN.UK.2015-4.RLTS.T32103A76510318.en. Accessed on 21 April 2025. Cited Name [PDF]
» Description
Camellia hengchunensis C.E.Chang in Bull. Taiwan Prov. Pingtung Inst. Agric. 12: 13 (1971)
Small tree,
twigs glabrous. Leaves: ovate-elliptical, 4.5-5 cm long, 2-2.5 cm wide, with
an acute but blunt tip, cuneate base, serrated margins above the middle, entire
margins near the base, smooth on both sides, with about 5 pairs of first
lateral veins; petiole 0.3-0.5 cm long, smooth. Flowers sessile and
pseudo-terminal; bracts are 3-4 and nearly smooth; sepals are round,
montanum-shaped, 0.4 cm long, and sparsely hairy; petals are oblong, about 2 cm
long and 0.6 cm wide; the tip is concave and smooth; stamens are numerous, with
filaments 0.5-1 cm long, smooth and hairless; ovary is slightly spherical,
about 0.15 cm long, and hairy; style is about 0.5 cm long and 3-lobed at the
tip. Capsule, huge in size, which cracks open when ripe and spreads by
gravity.
Distribution: the southernmost part of Taiwan. The range is small and the extent of occurrence is estimated to be less than 12 km2.
Taxonomic notes: This species was merged into Camellia brevistyla in Flora of China (Min and Bartholomew 2007). However, it is characterized by the oblong capsules, glabrous young shoots and almost entire leaf margins, which can be well distinguished from C. brevistyla (Su et al. 2012).
Camellia hengchunensis has most recently been assessed for The IUCN Red List of Threatened Species in 2015. Camellia hengchunensis is listed as Near Threatened.
» Distribution
Endemic to Taiwan and is found in the forests around Nanren Mountain on the Hengchun Peninsula.
» Description
恒春山茶 Camellia hengchunensis C.E.Chang in Bull. Taiwan Prov. Pingtung Inst. Agric. 12: 13 (1971)
小乔木，小枝无毛。叶革质，卵状椭圆形，长 4.5-5 厘米，宽 2-2.5 厘米，先端锐形，钝头，基部楔形，中部以上锯齿缘，近基部全缘，两面平滑，第一侧脉约 5 对；叶柄长 0.3-0.5 厘米，平滑。花无梗，假顶生；苞片 3-4，近乎平滑，萼片圆形，僧帽状，长 0.4 厘米，外被疏毛，花瓣长椭圆形，长约 2 厘米，宽约 0.6 厘米；先端凹入，平滑；雄蕊多数，花丝长 0.5-1 厘米，平滑无毛；子房略球形，长约 0.15 厘米，被毛；花柱长约 0.5 厘米，先端 3 裂。蒴果，体型巨大，成熟后开裂，藉由重力传播。
台湾特有种，产于恒春半岛南仁山一带森林中。
恒春山茶最近一次于 2015年进行了IUCN濒危等级评估，被评为近危 Near Threatened（NT）。
» Distribution
台湾特有种，产于恒春半岛南仁山一带森林中
Species in the Same Section: 短柱茶 Camellia brevistyla (Hay.) Cohen-Stuart、红花短柱茶 Camellia brevistyla (Hay.) Cohen-Stuart, f. rubida P. L. Chiu、小果短柱茶 Camellia confusa (Craib) Cohen-Stuart、窄叶短柱茶 Camellia fluviatilis Hand.-Mazz.、锯叶茶 Camellia grijsii Hance 、冬红短柱茶 Camellia hiemalis Nakai、落瓣短柱茶 Camellia kissi Wall. 、大花短柱茶 Camellia kissi Wall. var. megalantha Hung T. Chang、樱花短柱茶 Camellia maliflora Lindl. 、细叶短柱茶 Camellia microphylla (Merr.) S.S.Chien、琉球短柱茶 Camellia miyagii (Koidz.) Makino & Nemoto、钝叶短柱茶 Camellia obtusifolia Hung T.Chang、粉红短柱茶 Camellia puniceiflora Hung T.Chang、陕西短柱茶 Camellia shensiensis、威宁短柱茶 Camellia weiningensis Y.K.Li、阿森短柱茶 Camellia lutescens Dyer、短柱山茶 Camellia brevissima Hung T.Chang & S.Ye Liang、大姚短柱茶 Camellia tenii Sealy、褐枝短柱茶 Camellia phaeoclada Hung T.Chang、河静山茶 Camellia hatinhensis V.D.Luong, Ninh & L.T.Nguyen、紫金短柱茶 Camellia zijinica M.Lin, Q.L.Ye & Q.Fan、海南山茶 Camellia hainanica Y.L. Zhao et Z.G. Xu、泰国山茶 Camellia thailandica Hung T.Chang & S.X.Ren、毛短柱茶 Camellia mollis Hung T.Chang & S.X.Ren、短柱山茶 Camellia montana (Blanco) Hung T.Chang & S.X.Ren、锦美山茶 Camellia chinmeii S.L. Lee & T.Y.A. Yang
