Articles

Hedyotis philippensis (Willd. ex Spreng.) Merr. ex C.B. Rob.

Hedyotis philippensis (Willd. ex Spreng.) Merr. ex C.B. Rob.

Family

Rubiaceae

Synonyms

Spermacoce philippensis Willd. ex Spreng., H. congesta Wallich & G. Don.

Vernacular Names

Malaysia Sebueh, bunga kakarang.
Philippines Magdadakan (Samar-Leyte Bisaya), dilang-butiki (Tagalog), pulapasagit (Panay Bisaya).
Thailand Mae klon, saam nam (Peninsular).
Vietnam an di[eef]n philippin.

Geographical Distributions

Hedyotis philippensis is widely distributed from Thailand to Indonesia, the Philippines, Papua New Guinea and northern Australia.

Description

H. philippensis is a perennial, spreading subshrub, up to measure 1.2 m tall and openly branched. The stems are slender and often hairy when young.

The leaves are variable, narrowly oblong in shape, with a size measure 4-11 cm x 1-3.5 cm, hairless but hairy underneath midvein and shiny above. The terminal leaves are much smaller, lance-shaped and with measuring 3-10 mm long petiole. The interpetiolar stipules are triangular, many setae and up to measure 7 mm long. The cyme is axillary, small and crowded.

The sepal is obconical in shape, measuring 1-2 mm in diameter and smooth. The lobes are measure about 2.5 mm long and glandular appendage between the lobes. The petal is slightly longer than the sepal. The petal tube is measure 2-3 mm long, with oblong lobes which are measure 2-2.5 mm long and spreading.

The measuring 3.5-4 mm long capsule is rounded to ellipsoid in shape, fleshy, whitish and smooth.

Ecology / Cultivation

H. philippensis occurs on sandy soils, in open forest areas, along streams and seasonally boggy localities at low and medium altitudes.

Line Drawing / Photograph

Hedyotis_philippensis

References

    1. Plant Resources of South-East Asia No. 12 (2): Medicinal and poisonous plants.