Heptapleurum calyptratum
| Heptapleurum calyptratum | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Apiales |
| Family: | Araliaceae |
| Genus: | Heptapleurum |
| Species: | H. calyptratum
|
| Binomial name | |
| Heptapleurum calyptratum (Hook.f. & Thomson) Y.F.Deng (2018)
| |
| Synonyms[2] | |
| |
Heptapleurum calyptratum, commonly known as mallet flower, is a species of plant in the family Araliaceae. It ranges from eastern India and Bangladesh through Tibet and Indochina (Cambodia, Laos, Myanmar, Thailand, Vietnam) to southern China (Xizang, Yunnan), growing at altitudes of 900–1700 m.[2][3]
Description
Heptapleurum calyptratum is a scrambling shrub or tree growing 4-10 m tall, erect at first, the stems eventually climbing up to 30 m long, with glabrous foliage. The leaves are palmate, with a petiole 15–60 cm long, and 7-11 elliptical leaflets 12–23 cm long and 4-8.5 cm wide. The flowers are green, 1.5–3 cm diameter, produced in paniculate umbels in September, with the globose fruit 2–3.5 cm diameter, ripening in February.[3][4] Its gynoecium consists of a whorl of up to two hundred "stigmatic lobes" (carpels).[5]
Conservation
Formerly (in 1998, as Schefflera pueckleri) it was listed by IUCN as a Conservation-dependent species threatened by habitat loss,[6] but is now considered of least concern following a 2023 reevaluation.[1]
References
- ^ a b "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. 2023-02-16. Retrieved 2025-08-01.
- ^ a b Heptapleurum calyptratum (Hook.f. & Thomson) Y.F.Deng. Plants of the World Online. Retrieved 11 May 2023.
- ^ a b "Tupidanthus calyptratus in Flora of China @ efloras.org". eFloras.org Home. Retrieved 2025-08-01.
- ^ "India Flora Online". India Flora Online. 2025-08-01. Retrieved 2025-08-01.
- ^ Eyde, Richard H.; Tseng, Charles C. (April 1971). "What is the Primitive Floral Structure of Araliaceae?". Journal of the Arnold Arboretum. 52 (2): 218 -219 incl illust.
- ^ Chua, L.S.L. (1998-01-01). "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. Retrieved 2025-08-01.