Australian Tropical Rainforest Plants - Online edition

Marsdenia jensenii P.I.Forst.

Slender Vine
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Scale bar 10mm. © CSIRO

Forster, P.I. (1997) Austrobaileya 5: 59. Type: Queensland. Cook District: State Forest Reserve 310, Gadgarra, 15 Feb 1995, R. Jensen 105 (holo: QRS; iso BRI).


A slender vine not exceeding a stem diameter of 2 cm.


Twigs and petioles produce a milky exudate. Leaf blades about 21 x 11 cm, petioles about 7 cm long. About 7-11 colleters (small finger-like glands) present on the upper surface of the midrib close to its junction with the petiole.


Inflorescence an umbelliform raceme. Peduncles hairy, about 11-15 mm long. Pedicels about 15-25 mm long. Flowers about 20 mm diam. at anthesis. Sepals about 5 x 5 mm. Corolla tube about 1.5-2 mm long, lobes about 10 x 5 mm, rolled lengthwise. Anthers about 4 mm long, fused to form a staminal corona about 6 mm diam. Each anther with an ovate leaf-like appendage about 5 x 3.5 mm arching over the middle of the flower. Pollen aggregated in pollinia. Carpels about 2 x 1 mm. Style head about 5 x 6 mm.


Features not available.


Features not available.

Distribution and Ecology

Endemic to NEQ. Altitudinal range not known, collected at 700 m. Grows in well developed upland rain forest. Appears to be a rare species which is seldom collected.

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