Nomenclature
Accepted name/Authority/Place of publication:
Ipomoea trifida (Kunth) G. Don, Gen. Syst. 4 (1838) 280.
Synonyms:
Convolvulus trifidus Kunth in Humboldt, Bonpland & Kunth, Nov. Gen.Sp. 3 (1819) 107.
Description
Habit:
Much resembling Ipomoea decaisnei Ooststr. Mainly differing in the short-pilose stems, petioles, leaf blades.
Inflorescences:
Mainly differing from Ipomoea decaisnei in the short-pilose peduncles and pedicels, the thinner peduncles, the longer branches of the cymose inflorescences with less aggregate flowers.
Flowers:
Differing from Ipomoea decaisnei in the paler, in dry specimens straw-coloured, calyces with more densely pilose sepals, the margins of which bear less stiff hairs. Moreover the sepals often have a longer, needle-shaped mucro, whilst the outer ones are often distinctly shorter than the inner. Corolla mostly longer than in I. triloba, to 3 cm long, red-purple with a darker centre.
References:
Ooststroom, S.J. van & R.D.Hoogland. 1953. Convolvulaceae in FloraMalesiana 4: 469.
Biogeography, Ecology and Natural History
Distribution:
Native of Tropical America; escaped in Java.
Ecology:
Occasionally cultivated in gardens and run wild
in thickets and hedges up to 300m.
Other information
Common names and uses:
Djěndjěnang (Javanese).
General comments:
The Javanese plants almost matchSouth American specimens in the Leiden herbarium identified by Hallier asI. trifida. As appears fromhis notes Hallier saw the type of Convolvulus trifidus Kunth fromVenezuela in the Berlin Herbarium. The leaves of I. trifida have been described as 3-lobed; those of theJavan plants and of the above-mentioned specimens from South Americaare entire.
Authorship for webpage
Editor:
G. Staples
Contributors:
Classification:
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