Cratoxylum formosum subsp. pruniflorum (Kurz) Gogelein

 Cratoxylum formosum subsp. pruniflorum (Kurz) Gogelein, Blumea 15(2): 469 (1968).

Cratoxylum formosum subsp. pruniflorum (Kurz) Gogelein, Photo by Hoàng Thanh Sơn

its native range is China (S. Yunnan, S. Guangxi) to Indo-China.

Latin name:

Cratoxylum formosum subsp. pruniflorum (Kurz) Gogelein

Family:

Hypericaceae Juss.

Synonym Name: 

Ancistrolobus prunifolius (Kurz) Pierre

Cratoxylum dasyphyllum Hand.-Mazz.

Cratoxylum pruniflorum (Kurz) Kurz

Hypericum prunifolium Wall.

Tridesmis pruniflora Kurz

Vietnamese name:

Đỏ ngọn.

Describtion:

Trees 10-20 m tall. Leaves simple, opposite, elliptic or oblong, 7-10 by 3-4.5 cm, hairy on both sides, glaucous below. Flowers solitary or in fascicles, axillary or on branches; petals pale pink with fimbriate margin, caducous; stamens 3-fascicled. 

Distribution: 

Cambodia, China South-Central, China Southeast, Laos, Myanmar, Thailand, Vietnam.

Ecological:

On the barren hills of the midlands.

Flower times:

Feb.-Jun.

Type:

Type status: Isotype

Specific epithet: formosum

Scientific name authorship: (Kurz) Gogelein

Recorded by: Nathaniel Wallich; b.1786; d.1854; Wall.

Infraspecific epithet: pruniflorum

Identified by: Gogelein; Gogelein

Higher geography: Asia; Asia

Pharmacology:

CEE exhibited cytotoxic effects on the studied oral cancer cell lines but not normal Vero cells. The bioactive compounds in CEE should be further purified and elucidated for their mechanisms of action for development as anticancer agents.

HPLC profiles showed that all crude extracts contained caffeine, ferulic acid and resveratrol. CME and CEE had high contents of gallic acid and quercetin. Catechin was found only in CWE. Cytotoxicity test showed that CEE had the lowest IC50 on HeLa (143.18±13.35 μg/mL) and SiHa cells (106.45±15.73 μg/mL). C-33A cells were inhibited by CWE (IC50 = 130.95±3.83 μg/mL).

Uses:

Cure liver disease, good effect on nervous system

References:

https://www.ipni.org/n/60449269-2

http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:60449269-2

https://vi.wikipedia.org/wiki/Thành_ngạnh_đẹp

Promraksa B, Daduang J, Chaiyarit P, Tavichakorntrakool R, Khampitak T, Rattanata N, Tangrassameeprasert R, Boonsiri P. Cytotoxicity of Cratoxylum Formosum Subsp. Pruniflorum Gogel Extracts in Oral Cancer Cell Lines. Asian Pac J Cancer Prev. 2015;16(16):7155-9. doi: 10.7314/apjcp.2015.16.16.7155. PMID: 26514505.

Promraksa B, Daduang J, Khampitak T, Tavichakorntrakool R, Koraneekit A, Palasap A, Tangrassameeprasert R, Boonsiri P. Anticancer Potential of Cratoxylum formosum Subsp. Pruniflorum (Kurz.) Gogel Extracts Against Cervical Cancer Cell Lines. Asian Pac J Cancer Prev. 2015;16(14):6117-21. doi: 10.7314/apjcp.2015.16.14.6117. PMID: 26320505.

Book: Plant of Thampla-Numtok Phasuea National Park