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Ipomoea pes-caprae (L.) R. Br.

 

Ipomoea pes-caprae (L.) R. Br.

Family

Convolvulaceae

Synonyms

Convolvulus pes-caprae L., Ipomoea biloba Forsk., Ipomoea maritima (Desr.) R. Br.

Vernacular Names

English Beach morning glory, horse's foot­print, goat's foot creeper.
American Bay-hops.
Indonesia Daun katang, tapak kuda (general), katang-katang (Bali).
Myanmar

Pin­laikazum.

Cambodia Trakuon kantek, pak bung tale.
Thailand

Phakbung-thale (central).

Viet­nam

Rau mu[oos]ng bi[eer]n.

Geographical Distributions

Ipomoea pes-caprae is one of the most common beach plants throughout the trop­ics, including Southeast Asia.

Description

Ipomoea pes-caprae is a perennial and hairless vine with thick taproot. The stem is prostrate but sometimes twin­ing, measures about 5-30 m long and often roots at the nodes.

The leaves are often pointing only to one side. The petiole is up to 17 cm long. The blade is variable, ovate, elliptical, circular, kidney-shaped, nearly square or oblong, measuring 3.5-10 cm x 3-10 cm, rather thick and with 2 abaxi­al glands at the base of midrib. The base is broadly wedge-shaped, truncate, or shallowly cordate, with entire margin, emarginate at apex or deeply 2-lobed and mucronulate.

The inflorescence is 1-several-flowered. The peduncle is 3-16 cm long and stout. The bracts are early ca­ducous, broadly triangular and measure 3-3.5 mm long. The pedi­cel is 1-7 cm long. The sepals are unequal, somewhat leathery, hairless, obtuse at apex, and mucronulate, where the 2 outer ones are ovate-elliptical, measure 5-9 mm long, while the 3 inner ones are nearly circular and concave and measure 7-13 mm long. The petal is funnel-shaped, measures 3-6.5 cm long, purple to reddish-purple and with inside darker at the centre. The fila­ments are 7-12 mm long and hairy at the base.

The capsule is globular, measures 1-1.7 cm in diametre, smooth and leath­ery. The 4 seeds are trigonous-spherical, measure 6-10 mm long, black and densely brownish hairy.

Ecology / Cultivation

Ipomoea pes-caprae occurs inland, along roadsides and ditches, up to 800 m altitude. Although this species grows on the beach, it depends on ground water with a lower salt content than sea water. It is tolerant of high temperature, periodic drought, sea water spray, high soil pH and low soil nitrogen content.

Line Drawing / Photograph

Ipomoea_pes-caprae

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References

    1. Plant Resources of South-East Asia No.11: Auxiliary plants.

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