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Mikania iodotricha

Overview

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Near Threatened

Threat status

Interesting Facts

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Description

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Family Compositae

The largest family of flowering plants , the Compositae (Asteraceae), comprising about 1,100 genera and more than 20,000 species and characterized by many small flowers arranged in a head looking like a single flower and subtended by an involucre of bracts. A head may consist of both ray flowers and disk flowers, as in the sunflower, of disk flowers only, as in the burdock, or of ray flowers only, as in the dandelion.

Genus Mikania

Vines (perennial , sometimes suffrutescent ) [non-viney perennials, shrubs ], to 300[-1500+] cm. Stems usually twining to scrambling (terete , striate , or [4-] 6-angled, sometimes winged ), branched. Leaves cauline; opposite [whorled ]; petiolate [sessile]; blades palmately 3[-7]-nerved [pinnately nerved], ± ovate or deltate-ovate to triangular [linear ], margins entire or undulate to dentate or toothed to lobed , faces glabrous or puberulent to tomentose , often gland-dotted. Heads discoid , in corymbiform [paniculiform , racemiform , spiciform , thyrsiform] arrays. Involucres ± cylindric , [1-]2-3[-4] mm diam. (usually each subtended by 1 bractlet ). Phyllaries persistent , 4 in ± 2 series (outer pair imbricate over inner pair), not notably nerved, lanceolate, linear, or oblong (bases often swollen), ± equal. Receptacles flat (glabrous), epaleate. Florets 4; corollas usually white, sometimes pink to rose or purplish, throats funnelform or campanulate , lobes 5, linear or triangular to deltate; styles: bases slightly, if at all, enlarged, glabrous, branches ± filiform [weakly clavate ]. Cypselae ± prismatic , [4-]5[-10]-ribbed, glabrous or puberulent, sometimes gland-dotted; pappi persistent, of [20-]30-60 (white, buff, pinkish, or purplish) barbellulate to barbellate bristles in 1-2 series (distinct or basally connate ). x = 16-20.

Species ca. 450: overwhelmingly neotropical (9 species in the Old World tropics), some temperate North American and South American.

All species of Mikania in the flora belong to M . sect. Mikania in the sense of W. C. Holmes (1996).[1]

Habitat

Ecology: A liana of high Andean forest up to wet paramo (2,500–3,500 m ). (Ref. 287423).

List of Habitats :

Taxonomy

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Similar Species

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Members of the genus Mikania

ZipcodeZoo has pages for 11 species, subspecies, varieties, forms, and cultivars in this genus:

M. congesta (Guaco) · M. cordata (Heartleaf Hempvine) · M. cordifolia (Florida Keys Hempvine) · M. fragilis (Fragile Hempvine) · M. micrantha (American Rope Mikania Micrantha) · M. millei (Poroto Angu) · M. odoratissima (Fragrant Hempvine) · M. pachyphylla (Luquillo Mountain Hempvine) · M. porosa (Puerto Rico Hempvine) · M. scandens (Climbing Boneset Mikania Scandens) · M. stevensiana (Maricao River Hempvine)

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal February 16, 2008:

Identifiers

Footnotes

  1. Walter C. Holmes "Mikania". in Flora of North America Vol. 21 Page 459, 545, 546. Oxford University Press. Online at EFloras.org. [back]
Last Revised: 7/22/2012