The flowers are yellow to orange to brown in colour, the petals thick and fleshy, just over a centimetre long the three outer petals are triangular, and slightly longer than the three inner petals, which are fused at the apex. The odour of the flower, when present, is rather like that of over-ripe bananas. The flowers, occurring in pairs, often appear to be borne on the twigs opposite the leaves, but they are probably terminal, the axillary bud in the axil of the final leaf producing a leafy shoot that takes over the function of the terminal shoot, and it is this that makes the inflorescence appear lateral and leaf-opposed. Close to the leaf margins, the lateral veins form loops. The petioles are about 1 – 5 mm long, and grooved on the upper surface. The leaf blades are about 6 – 19 cm long by 2 – 6.5 cm wide. The twig bark is strong and fibrous when stripped. When very young, the leaf-bearing trigs are covered in minute rusty-brown stellate hairs. Stem diameters as large as 9 cm have been recorded. In the rainforest it becomes a large vine reaching up to the canopy. The young stems climb by means of loops and sudden bends (hence the ‘zig-zag'). The plant only begins to climb when it is a few years old. The plant usually grows as a scrambling tree-top vine, but can flower and fruit as a shrub. The plant photographed was found growing on Hawkings Point, Picnic Bay. It also occurs in New Guinea, and in other parts of Malesia. It is found in rainforest, gallery forest and vine thickets. In the northern part of its range, it will grow at any altitude up to about 1000 m. This vine occurs in Cape York Peninsula, north-east Queensland, and southwards as far as north-eastern NSW. Melodorum is derived from the Latin mel, honey, and odor, scent (the crushed leaves smell like honey) leichhardtii is for Ludwig Leichhardt (1813-1848), the German explorer who travelled over large portions of the Australian interior, discovering many new plants on the way. Pronounced: mel-oh-DOOR-um lie-KART-ee-eye ( Annonaceae - the custard apple family) Avoid rapid and dramatic reductions in canopy cover or basal area in wet areas to reduce risk of swamping.Melodorum leichhardtii (F.Muell.) Benth 1863.Following BMPs around streams and buffering associated drainages will reduce eutrophication and prevent water quality degradation. This species is likely sensitive to water quality.Minimize disturbance to hydrology, including soil disturbance from rutting.Management guidelines are additional considerations that may help maintain or enhance habitat for this species However, in areas of the state where frozen conditions are unreliable, very dry soils late in the growing season might be the best available alternative. Ideally, this would involve frozen, snow-covered ground. Avoid known individual plant locations and conduct operations elsewhere when they are least likely to cause damage.Avoid broadcast spraying of herbicides use care with spot spraying.These are specific actions designed to avoid "take" (mortality) of this species. Sources used in developing this information can be found here. These are a work in progress, and we welcome your suggestions and feedback. The Endangered Resources Program has developed avoidance measures and management guidelines for plants on the Natural Heritage Working List. Comments: Associated Species: Cladium mariscoides, Scirpus americanus, Eleocharis elliptica, Lobelia kalmii, Potentilla anserina.Optimum time to identify: The optimal identification period for this species is August through September.Blooming phenology: late June to August.Leaf characteristics: Tiny, linear, often found on basal branches buried beneath surface.Fruit characteristics: Round capsule with 2 valves.Flower characteristics: Flowers both cleistogamous and chasmogamous fully open (chasmogamous) flowers are yellow and 2-lipped with lower lip larger than upper lip cleistogamous flowers inconspicuous.Distinguishing characteristics: Distinguished by its small calyx (less than 2 mm long) and leaves (simple, filiform, embedded in substrate).Synonyms: Setiscapella cleistogama, Setiscapella subulata, Utricularia cleistogama Identification The optimal identification period for this species is August through September.
Blooming occurs late June to August fruiting occurs July to August. Zigzag Bladderwort ( Utricularia subulata), a plant, is found near Lake Michigan in wet places between dunes, as well as in bogs or poor fens.
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