Invasive Alien Species
Species Name: Elephantopus spicatus
- Family Name:
- Pseudoelephantopus spicatus (Juss.) Gleason
- Tropical America
- Usually branched, with a strong tap root, 30-120 cm tall. Stem terete, thinly hairy when young. Lower leaves oblong-obovate, upper ones oblong-lanceolate, all of the with tapering base and an obtuse apex, shallowly terete, on both surfaces thinly hairy, gland-dotted beneath, lower ones 5-25 x 1-7 cm, higher ones 2.5-11.5 cm x 0.5-1.5 cm. Inflorescence terminal spikes; glomerules sessile, consisting of 1-6 heads in axils of small lanceolate leaves; head-flowers oblong, 4-flowered; involucres as long as heads, 4-seriate; corolla subtubular, 5-lobed, white. Achenes linear-oblong, densely tomentose, glandular between ribs, 6 mm long; pappus 4 mm long, consisting of 2 long bristles, lobed at the top.
- Invaded Habitat:
- Open waste places, road sides, pasture lands.
- Firstly collected in Java in 1917 and spread throughout the island.
- Occurs in shaded areas.
- Backer, C.A. and R.C. Backhuizen van den Brink. 1963. Flora of Java. Vol. II., N.V. Noordhoff-Groningen, The Netherlands.
- Pancho, J.V. and S.R. Obien. 1983. Manual of Weeds of Tobacco Farms in the Philippines. Philippine Tobacco Research and Training Center. Mariano Marcos State University. Batac, Ilocos Norte.