Cyanthillium Cinereum Click on Images to Enlarge

Home , Cyanthillium, Cyanthillium cinereum, Vernonia

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 Cyanthillium cinereum Click on images to enlarge

Family Asteraceae Scientific Name Cyanthillium cinereum (L.) H.Rob. Robinson, H.E. (1990) Proceedings Biological Society Washington 103: 252.

Common name Flowers and buds. Copyright CSIRO Vernonia Stem Usually flowers and fruits as a herb but occasionally flowers as a shrub about 1 m tall. Leaves Stems, twigs, petioles and leaves densely clothed in white woolly hairs. Leaf blades about 2.5-4.5 x 1.5-3 cm, tapering very gradually into the petiole, petioles about 0.3-0.5 cm long. Leafy stems longitudinally ribbed and clothed in pale medifixed hairs. Flowers and buds. Copyright CSIRO Flowers Inflorescence a panicle or cyme of heads. Heads surrounded by several rows of green, hairy bracts. All flowers, 20-30, in each head hermaphroditic. Flowers about 5 mm long. Calyx reduced to a pappus (about 30 bristles, each about 3 mm long) each bristle microscopically barbed. Corolla tube about 4 mm long. Anthers fused, filaments free. Pollen white. Ovary hairy. Stigma 2-armed. Fruit Flowers and buds. Copyright CSIRO Achene hairy, about 1.5-2 mm long, pappus about 4 mm long, persistent at the apex. Bristles of pappus microscopically barbed. Embryo about 1 mm long. Seedlings Cotyledons broadly ovate to elliptic, about 4-6 x 4-5 mm. Stem above the cotyledons and both the upper and lower surfaces of the leaf blades clothed in bifid hairs. At the tenth leaf stage: leaf margins toothed and undulate. Plant densely clothed in long white hairs, upper surface of the leaf blade more sparsely clothed than the lower surface. Seed germination time 8 to 33 days. Distribution and Ecology Occurs in WA, NT, CYP, NEQ, CEQ and southwards as far as south-eastern New South Wales. Altitudinal Habit, leaves, flowers and fruit. Copyright CSIRO range in northern Australia from near sea level to 1000 m. Usually grows in open forest but sometimes found in monsoon forest and vine thickets. Also occurs in Asia, Malesia and the Pacific islands. Natural History & Notes Several varieties occur in the region, refer to Flora of Australia vol. 37: 183-187 (2015). This species may have some medicinal uses. Herb (herbaceous or woody, under 1 m tall) X Scale bar 10mm. Copyright CSIRO Shrub (woody or herbaceous, 1-6 m tall) X Synonyms Vernonia cinerea (L.) Less., Linnaea 4 : 291(1829). Conyza cinerea L., Species Plantarum : 862(1753). RFK Code 3087 CC-BY Australian Tropical Herbarium unless otherwise indicated in the images.