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Parkia speciosa Hassk

Parkia speciosa Hassk

Family

Leguminosae

Synonyms

Parkia macrocarpa Miquel.

Vernacular Names

Malaysia

Petai.

Indonesia

Petai, pete (Javanese), peuteuy (Sundanese).

Thailand

Sator (General), sator dan (Peninsular), sator kow (Peninsular).

Geographical Distributions

Parkia spe­ciosa is native to Malaysia, Brunei, Indonesia, and peninsular Thailand. Occasionally it is cultivated, but rarely outside its native area.

Description

Parkia spe­ciosa is a tree that can reach up to 30 m tall, with smooth reddish-brown bark and hairy branchlets.

The leaves are arranged alternate and bipinnate. The petiole is 2-6 cm long, with subcircular glands about 1 cm above the base. The rachis is 18-30 cm long, with subcircular glands be­tween the junctions of the basal pairs of pinnae. There are 14-18 pairs of pinnae which are 3-9 cm long, and with circular glands below the basal pairs of leaflets. There are (18-)31-38 pairs of leaflets per pinna which are linear, and measuring 5-9 mm x 1.5-2.2 mm where the base at one side is expanded into an apiculate auricle. The apex is rounded and mucronate.

The inflo­rescence is a pear-shaped pendulous head and measures 2-5 cm in diametre. The peduncle is 20-45 cm long. The flowers are small and numerous. They are brown-yellow, male or asexual at the base of the head and bisexual at the apex of the head. The sepal and petal are tubular and 5-lobed. There are 10 stamens (staminodes). The filaments at the base unite into a tube. The ovary is borne on a short stalk.

The fruit is a legume on a long stalk. It measures 35-45 cm x 3-5 cm, usually strong twisted and prominently swollen over the 12-18 seeds.

The seed is broadly ovoid, measuring 2-2.5 cm x 1.5-2 cm, horizon­tal in the pod, with very thin testa and white.

Ecology / Cultivation

Parkia spe­ciosa is frequently cultivated from the plains up to elevations of 1500 m, but it does best between 500-1000 m. At low elevations, there are pest problems, and above 1000 m, produc­tivity decreases. Wild trees are found in primary and secondary forests, mostly at low elevations.

Line Drawing / Photograph

BOT00401

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References

  1. Plant Resources of South-East Asia No.8: Vegetables.

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