Invasive Alien Species

Species Name: Melampodium perfoliatum

Family Name:
Asteraceae/Compositae
Synonym:
Origin:
Mexico, found for the first time in Java in 1920
Description:
An erect annual herb, 25-50 cm tall. Leaves opposite, sessile to short-stalked, elliptic to ovate-triangular to rhomboid, 3-19 x 1-13 cm, both surfaces sparsely hairy. Inflorescence a solitary head in the fork of the stem and axillary; involucral bracts two rows, the five leavy outer ones united at the base, the inner ones each enclosing a fruit; receptacle conocal, with scales; the scales oblong, toothed at the tip; ray flowers 8-13, female, corolla tubular, yellow-orange tongue, achenes smooth 8 mm long; disc-flowers many, male, corolla tubular with 5-lobed limb, yellow. Achenes without pappus
Invaded Habitat:
Fallow fields, road sides, waste places, coffee plantations
Distribution:
West and East Java
Ecology:
On not to dry humid soils at 1 000- 1 150 m altitude
References:
  1. Backer , C. A. & R. C. Bakhuizen Van Den Brink.  1965.  Flora of Java. Vol. II. N.V. P. Noordhoff. Groningen, Netherlands.
  2. Everaarts, A.P. 1981. Weeds of vegetables in the highlands of Java.
    Lembaga Penelitian Hortikultura, Pasar Minggu, Jakarta.