Bluemink (Ageratum houstonianum)

Bluemink (Ageratum houstonianum) is a species of plant in the Asteraceae, an annual herbaceous shrub, cylindrical stems, branching, and green or reddish, white-haired, 0.3-1 meter high, leaves oval to triangular, 2-7 cm long, wide 2-5 cm, green, serrated margins and white hairs.

A. houstonianum has bright blue or red or purple or white flower heads. Flower heads in dense corymbs. The flowers are thread-like and have fine hairs. The lanceolate bracts are narrow, pointed, serrated at the top and glandularly hairy.

This species grows to form dense colonies in grasslands, moist forest clearings and bushes up to an elevation of 1000 meters, prefers cool soil and full sun.

This plant produces a methoprene-like compound that disrupts the normal function of the corpus allatum in insects, the organ responsible for secreting hormones and making insects sterile. This plant is toxic to grazing animals causing liver damage.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Eupatorieae
Subtribe: Ageratinae
Genus: Ageratum
Species: Ageratum houstonianum
Vareity: Ageratum houstonianum var. angustatum, Ageratum houstonianum var. muticescens, Ageratum houstonianum var. tipikal
Form: Ageratum houstonianum f. isokroom, Ageratum houstonianum f. luteum, Ageratum houstonianum f. niveum, Ageratum houstonianum f. normal, Ageratum houstonianum f. versikolor

Molucca albizia (Falcataria moluccana)

Sengon laut or Molucca albizia ( Falcataria moluccana ) is a species of wood-producing trees in Fabaceae, claimed to have the fastest growth in the world with the addition of a height of 7 m/year, producing white light wood for light construction, packing crates, particle boards and blockboards. F. moluccana has a height of 40 m and a diameter of 100 cm or more, the main stem is generally straight and cylindrical with clear bole up to 20 m. The bark is gray or whitish, smooth or slightly warted with a line of lenticels. Shady canopy, umbrella-shaped and tenuous. Young twigs have sides and hair. Double pinnate compound leaves, small minor leaves, easily fall out with one or more glands on the stem and length 23-30 cm. Leaf fins number 6-20 pairs, each containing 6-26 pairs of elliptical or elongated minor leaves with a very tilted, pointed tip, 0.6-1.8x0.5 cm. Small flowers, yellowish white, hairy, androgynous, collected in branched panicles, 10-25 cm long and located in the arm...

Six new species forming the Sumbana species group in genus Nemophora Hoffmannsegg 1798 from Indonesia

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