Strobocalyx arborea

Strobocalyx arborea, formerly widely known by the synonym Vernonia arborea, is a species of mid-level rainforest tree in the Composite, or Daisy family Asteraceae, that is found from the Western Ghats of India and Sri Lanka, east to the East Indies and New Guinea.^[1][2] This tree, and Brachylaena, are contenders for the tallest of all composite trees ("daisy trees"); plants on Sumatra (formerly distinguished as V. a. var. pilifera; locally called Maremboeng) reaching a height of 36 m (118 ft), and plants from Java (formerly distinguished as V. a. var. javanica; locally called Semboeng Kebo) can be almost as tall, to 34 m (112 ft), and at up to 104 cm (41 in) trunk diameter, is the most massive of all composites.^[3] Its leaves contain a useful fungicide.^[4] The leaves are alternate, ovate (but often asymmetrical), 8–25 cm long and 3–10 cm broad, with a leathery texture.^[5]

Strobocalyx arborea
Leaves and flowers
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Strobocalyx
Species:	S. arborea
Binomial name
Strobocalyx arborea (Buch.-Ham.) Sch.Bip.
Synonyms[1]
Vernonia arborea Buch.-Ham. Conyza acuminata Wall. [Invalid] Flustula tomentosa Raf. [Illegitimate] Gymnanthemum acuminatum Steetz Leucomeris glabra Blume ex DC. [Invalid] Leucomeris javanica Blume ex DC. [Invalid] Vernonia arborea var. arborea Vernonia arborea var. blumeana (DC.) Koord. & Valeton Vernonia arborea var. glabra Koord. & Valeton Vernonia blumeana DC Vernonia florescens Elmer Vernonia urdanetense Elmer Vernonia vaniotii H.Lév. Vernonia wallichii Ridl.