Leea macrophylla – Giant-leaved Leea
Leea macrophylla, giant-leaved leea, is a tropical, deciduous shrub from the grape family (Vitaceae), known for having some of the largest leaves in the entire genus. It is mainly cultivated as a dramatic foliage plant and is valued in traditional Indian medicine for its tuberous roots.
Synonyms and Nomenclature
This is a conserved name (nom. cons.), authored by “Roxb. ex Hornem.” (1813); the later use by Roxb. (1824) is an illegitimate homonym. The Kew POWO database lists about 18 synonyms for the species; the most important include:
- Leea robusta Roxb.
- Leea integrifolia Roxb.
- Leea latifolia Wall.
- Leea aspera Wall. ex G.Don
- Leea parallela Wall.
- Leea pallida Craib
- Leea angustifolia M.A.Lawson
- Leea coriacea M.A.Lawson
- Leea venkobarowii Gamble
- Aralia lappifolia Raeusch.
- Aquilicia samudraca Jones
In English, the plant is called “giant-leaved leea” and “large-leaved leea,” in Hindi Hastikand/Dinda, and in Sanskrit Hastikarna (“elephant ear”)—referring to its enormous leaves; the Polish name is nadłużyn wielkolistny.
Origin and Appearance
The species originates from the area stretching from the Indian subcontinent to south-central China (Yunnan) and Indochina, where it grows in open forests, forest edges, and secondary thickets, from lowlands up to about 2250 m. It is a deciduous shrub, sometimes forming a small tree, usually growing 2–3 m tall and sprouting each season from a persistent, tuberous rhizome.
The plant’s hallmark is its huge, heart-shaped leaves, with lower leaf blades reaching up to about 60 cm wide (botanically ranging from simple to pinnate). Small, greenish-white to reddish flowers are gathered in branched umbels 12–45 cm long, which develop into flattened-spherical, black berries 10–15 mm in diameter.
Frost Hardiness and Cultivation
Nadłużyn is a tropical, frost-sensitive plant adapted to USDA zones 9–11 (best in zone 10). Since it dies back to a tuberous rhizome in winter, established plants can tolerate short chills at the edge of zone 9, but growing plants are strictly heat-loving. In temperate climates, it is grown in pots, kept warm and humid, and in winter the rhizome is stored dry and warm.
Growing from seeds
Fresh seeds germinate without special stratification, but the process can be slow and uneven. Germination is accelerated by soaking for about 3 days and gentle scarification. Seeds are sown shallowly in warm (25–30°C), moist, fertile, and well-draining substrate. Seedlings usually appear from about 10 days up to 3 months. Young seedlings are initially delicate because they have not yet developed a tuber – they should be carefully pricked out.
Care and uses
This is an understory species – it grows best in diffused light and partial shade, with moderate to regular watering, in fertile, humus-rich, and well-draining soil. In winter, when the rhizome rests, watering is greatly reduced. In Ayurvedic medicine, the tuberous roots ("Hastikarna") were used as a strengthening and pain-relieving agent, and the roots also provided a red dye for fabrics. In our offer, it is primarily an impressive foliage and collector’s plant.
Interesting facts
The Sanskrit and Hindi names of the plant (Hastikarna, Hastikand) literally mean "elephant ear" – referring to leaves that can reach about 60 cm wide, among the largest in the genus. Despite its impressive leafy appearance, the entire above-ground part of the plant dies back during the dry season and regrows each year from the underground tuberous rhizome – the same organ valued in Ayurvedic medicine.
Summary
Nadłużyn with large leaves is a plant for lovers of dramatic, tropical greenery – its "elephant" leaves make a huge impression in pots and winter gardens. Growing from seeds is moderately demanding: it needs warmth, moisture, and a bit of patience, but rewards with an exceptionally striking form.
