Invasive Alien Species
Species Name: Spergula arvensis
- Family Name:
- Europe, found for the first time in 1882 by Reinwardt in Tengger mountain, East Java.
- An erect or ascending annual herb, usually branched near the base, 15-40 cm tall. Stem glabrous or glandular-hairy towards the apex, fetid; stipules triangular-ovate. Leaves in opposite clusters; blade thread-like, rounded above, channeled beneath, fleshy, glabrous or glandular-pubescent, 1-4.5 cm long. Inflorescence stalked, in terminal cymes, the stalk bend downwards after flowering; pedicels 6-25 mm long; sepals 5, ovate, sparsely glandular-hairy; petals 5, as long as or longer then the sepals, white; stamens 5-10; styles 5. Fruit a few to many-seeded capsule, opening with five valves. Seeds circular in outline or almost so, winged.
- Invaded Habitat:
- Fallow fields, gardens, roadsides, forest-edges, waste places, especially on loose soil.
- Central and East Java as far as known. Of worldwide distribution in the tropics at higher altitude.
- Occurs at 1 450-2 500 m altitude, becoming abundant above 1700 m.
- Backer , C. A. & R. C. Bakhuizen Van Den Brink. 1965. Flora of Java Vol. I. N.V. P. Noordhoff. Groningen, Netherlands.
- Everaarts, A.P. 1981. Weeds of vegetables in the highlands of Java. Lembaga Penelitian Hortikultura, Pasar Minggu, Jakarta.
- Moody, K., C.E. Munroe, R.T. Lubigan and E.C. Paller, Jr. 1984. Major Weeds of the Philippines. Weed Science Society of the Philippines, UPLB College, Laguna, Philippines.