Adenia hondala

Adenia hondala is a native climbing plant found across Sri Lanka, recognised in both botanical literature and the island's long tradition of Ayurvedic healing. Growing from a large, irregularly shaped tuber, it winds through forest edges and scrubland with woody, scrambling stems that thicken noticeably at each node. Though relatively inconspicuous in the wild, it holds a well-documented place in Sri Lanka's catalog of ayurvedic medicinal plants — prized for properties that practitioners have applied for generations.

What does Adenia hondala look like?

The plant's most distinctive feature is its substantial underground tuber, which anchors the climbing stems and stores the compounds responsible for its medicinal — and toxic — reputation. Stems branch out with alternate leaves that are large and deeply divided in a palmate pattern into three to five lobes. Between the lobes, small circular glands are visible on close inspection.

Each leaf node produces a tendril, and it is from these tendrils that the flowers emerge. The flowers are greenish-white to bluish-white, each formed from a bell-shaped tube with five petals that curl back at the tips. The overall effect is delicate and easy to miss against the background of surrounding foliage.

What does the fruit of Adenia hondala look like, and is it safe?

The fruit is a globular capsule with a stiff rind that splits into three valves when mature. Inside, seeds are enclosed in fleshy white arils. Unripe fruit is green; as it matures it turns orange — a colour change that can make it visually appealing, particularly to children. This is a serious concern: the ripe fruit is poisonous, and its resemblance to passion fruit has historically led to accidental ingestion. Adults and carers supervising children in areas where the plant grows should be aware of this risk.

The capsule's attractive appearance, combined with its similarity to edible climbing plants, makes correct identification important for anyone spending time in Sri Lankan scrubland or dry-zone forest margins.

Which parts of the plant are edible?

Not all of Adenia hondala is hazardous. The young shoots and leaf stalks are traditionally cooked and consumed in some communities. Preparation by cooking is key — as with many plants in the same family, raw consumption can cause adverse effects. The tubers and seeds, however, are not safe for casual consumption and should be handled only by those with appropriate knowledge.

How is Adenia hondala used in Ayurvedic medicine?

The tuber is the most pharmacologically significant part of the plant. Despite being toxic in its raw form, it has documented antibacterial and antimicrobial properties that Ayurvedic practitioners have exploited for centuries. Traditional applications include treatment of skin disorders — particularly inflammatory and infectious conditions — and the management of hernias. The tuber is also processed into a preparation known as vidari or vidaari, a compound used within classical Ayurvedic formulations.

Seeds, counterintuitively, are employed as an antidote against certain poisons in traditional practice. The plant additionally features in ethnobotanical records as a remedy used in cases of snake bite, though such uses should be understood strictly within their historical and traditional context rather than as a replacement for medical treatment.

Adenia hondala is formally listed in Sri Lanka's official catalog of Ayurvedic medicinal plants, giving it recognised status alongside other important native species such as Acacia chundra and Pongamia pinnata, both of which also contribute to the island's Ayurvedic pharmacopoeia.

Where does Adenia hondala grow in Sri Lanka?

The plant is distributed across Sri Lanka's dry and intermediate zones, typically in scrub forests, forest margins, and disturbed secondary vegetation. It is most commonly encountered at lower elevations, where warm temperatures and seasonal rainfall patterns suit its growth cycle. Its climbing habit means it is frequently found scrambling over shrubs and low trees rather than growing as a standalone specimen.

Protected areas such as Wilpattu National Park support habitats of this kind, and naturalists exploring the dry-zone flora of Sri Lanka may encounter it during wildlife visits. Its presence in such ecosystems is part of the broader botanical richness that makes Sri Lanka one of Asia's most significant biodiversity hotspots.

What is the scientific classification of Adenia hondala?

Is Adenia hondala related to the passion flower?

Yes — Adenia hondala belongs to the Passifloraceae family, the same botanical family as the familiar passion flower and passion fruit. This taxonomic relationship explains not only the visual similarity of the fruit to passion fruit but also some shared chemical characteristics within the family. The resemblance is close enough to cause genuine confusion, reinforcing why awareness of the plant's identity and toxicity is important, particularly in communities where wild foraging is common.

Are there safety considerations when handling the plant?

Several parts of Adenia hondala — principally the tuber, seeds in unprepared form, and the ripe fruit — are toxic and should not be consumed without proper processing by a qualified practitioner. The tuber's bioactive compounds are precisely what give it therapeutic value in Ayurveda, but those same compounds are harmful without correct preparation. Anyone identifying or collecting the plant in the wild should treat it with the same caution they would apply to any wild plant with known toxic properties.

The risk to children is particularly well-documented: the orange ripe fruit closely resembles that of passion fruit species, and cases of accidental ingestion have been recorded historically. Communities in areas where the plant grows should ensure children can distinguish it from edible fruit-bearing climbers.