Syzygium stocksii and S. travancoricum have been merged (Byng et al. 2015) and treated under the earlier valid name S. stocksii.

Syzygium stocksii is a large tree that grows up to 15 m high in the hillocks and low land swamps of evergreen and semi evergreen forest in between 50–800 m elevation. The species has an EOO of 93,153 km² and an AOO of 124 km². There has been a 30% population reduction in the past three generations (60 years) due to large scale conversion of hillocks and swamps for monoculture plantations, industries and urbanisation. However, the current population trend is increasing with 25,000 mature individuals from 33 collection localities with 27 subpopulations. The popularly known Syzygium travancoricum was merged under Syzygium stocksii, which had undergone many detailed studies contributing to new distribution and population records. There has been a successful reintroduction programme for the taxon and ex situ conservation is in place. However, because of the past decline this species is assessed here as Vulnerable (VU).

The species is endemic to the Western Ghats, India.

Syzygium stocksii presently has more than 25,000 mature individuals from 33 collection localities with 27 subpopulations. Recent studies indicated an increase in the number of juvenile and mature individuals. However, there has been 30% population reduction in the past three generations (60 years) due to large scale conversion of hillocks and swamps for monoculture plantations, industries and urbanisation. The largest subpopulations are at Kulathupuzha, Kalasamala and Nilgiris with more than 10,000 mature individuals. The current population trend is increasing (Udhayavani et al. 2013, Sreekumar et al. 2020).

Syzygium stocksii is a large tree that grows up to 15 m high in the evergreen and semi evergreen forest in between 50–800 m elevation usually on hillocks or swampy vegetation in the low land. The quality of the habitat is decreasing due to intense soil erosion, deposition of silt and waste as a result of anthropogenic interventions. Normal fruiting and seed germination patterns have been observed (Sreekumar et al. 2020) but in some subpopulations the germinated seedlings showed difficulty in their survival. The species is associated with Terminalia paniculata, Hopea parviflora, Calamus thwaitesii, Lagerstroemia floribunda, Hydnocarpus macrocarpus, Aporosa lindleyana = (Aporosa cardiosperma; POWO 2023), Syzygium cumini, Ficus hispida, Litsea coriacea and Sterculia guttata.

Syzygium stocksii occupies in the hillocks and low land swamps of evergreen and semi evergreen forest which is under pressure due to the deposition of silt and waste as a result of anthropogenic interventions. Intense soil erosion, habitat fragmentation and changes in land use patterns due to monoculture plantations, industries and urbanisation were considered as the major threats to their population and regeneration.

The species is known for its medicinal value since it is used to cure diabetes and arthritis problems and also for its astringent, bactericidal, antifungal and neuropsychopharmacological properties.

The species is reported from three protected areas such as Agasthyamalai Biosphere reserve, Nilgiri Biosphere reserve and Shenduruny Wild Life Sanctuary. Ex situ conservation is in place at KFRI, Thrissur and JNTBGRI, Thiruvananthapuram, Kerala. Saplings were reintroduced in Kalasamala as an initial step towards its restoration and also in Varavoor and Asurankundu dam, Thrissur, Kerala. More than 1,000 individuals have been raised to be restored to different sites of sacred groves (Sreekumar et al. 2020). No species specific action plan has been prepared. In vitro propagation has also been reported (Anand et al. 1999).