Homalanthus Populifolius Click on Images to Enlarge

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Species information Abo ut Reso urces Hom e A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Homalanthus populifolius Click on images to enlarge Family Euphorbiaceae Scientific Name Homalanthus populifolius Graham Graham, R. (1827), Edinburgh New Philosophical Journal 3: 175. Type: "This plant is native of New Holland, from whence we received it by the kindness of Mr Fraser in 1824. It sprung from seeds .." Leaves and flowers. Copyright Australian Plant Image Index Common name (APII). Photographer: M. Fagg. Native poplar; Native bleeding heart Stem Grows into a small tree but also flowers and fruits as a shrub. Leaves Fruit. Copyright Australian Plant Image Index (APII). Leaf blades about 6.5-11.5 x 5.5-7.5 cm, petioles about 3-9.5 cm. Stipules about 6-18 x 3-5 mm. Lateral veins Photographer: M. Fagg. about 6-10 on each of the midrib. One or two glands visible on the petiole near its junction with the leaf blade. Two or more glands present on the leaf blade close to the point of attachment of the petiole or on other parts of the leaf blade. Flowers Inflorescence about 25 mm long. Male flowers: Flowers on pedicels 1-1.5 mm long, petals absent. Stamens borne on a central receptacle. Filaments very short or absent. Anthers globose, about 1 mm wide. Female flowers: Flowers on pedicels about 7 mm long. Petals absent, styles two, linear, about 2 mm long, arising sub- laterally. Ovary glabrous. Fruit Fruits laterally compressed, about 11 x 7-10 mm, style persistent at the apex. Seeds about 5-6 x 4-5 mm. Testa thick and hard, longitudinally ribbed. Embryo about 2 mm long, cotyledons wider than the radicle. Seedlings Cotyledons about 10 x 4 mm, petioles very short or absent. At the tenth leaf stage: leaf blade peltate, petiole long and slender. Petioles producing a watery milky exudate when cut. Stipules large and conspicuous, about 18-20 mm long, longitudinally veined. Seed germination time 74 days. Distribution and Ecology Occurs in NEQ, CEQ and southwards as far as north eastern New South Wales. Altitudinal range in NEQ from near sea level to 500 m. Grows in disturbed areas in rain forest. Also occurs on the Pacific islands (Vanuatu, New Caledonia and Fiji.) Shrub (woody or herbaceous, 1-6 m tall) X Tree X RFK Code 3562 CC-BY Australian Tropical Herbarium unless otherwise indicated in the images. .

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