Tussilago sarmentosa

• Interesting Facts
• Description
• Taxonomy
• Similar Species
• More Info
• Further Reading
• Notes

Interesting Facts

Description

Tribe Senecioneae

The Senecioneae are a tribe of closely related genera that can be recognized most readily by the nature of the pappus and the involucral bracts or phyllaries. The phyllaries are basically in one well developed, often partially or wholly connate series of equal length that closely envelope the head . Frequently there are a few, very much smaller and mostly randomly distributed, often necrotic-tipped bracts near the base of the main series. The pappus is of fine, soft, often pure white capillary hairs . Heads may be either discoid or radiate . -- Gerald Carr.

Genus Tussilago

Perennials , 5-30(-50) cm (rhizomes fibrous-rooted, creeping ; plants forming extensive colonies). Stems usually 1, erect (scapiform , not branched). Leaves basal and cauline (basal usually developing after flowers) ; alternate; petiolate (petiole lengths 1-2 times blades ) or sessile; blades (basal) palmately nerved, orbiculate to polygonal or lobed (cauline leaves lance-ovate to linear , bractlike or scale-like), margins denticulate , abaxial faces gray-tomentose, adaxial tomentulose , glabrescent . Heads (erect at flowering, nodding in fruit) radiate , borne singly. Calyculi 0 (or indistinct, bractlets intergrading with bractlike cauline leaves). Involucres cylindric to subturbinate, 10-15 mm diam. (larger in fruit). Phyllaries persistent , usually ± 21 in (1-) 2 series, erect, distinct , lance-linear to linear, subequal , margins scarious (apices greenish or yellow-green). Receptacles convex , foveolate (socket margins ± membranous), epaleate. Ray florets 100-200(-300+), pistillate , fertile ; corollas yellow (drying pinkish). Disc florets (20-) 30-40, functionally staminate ; corollas yellowish, tubes longer than campanulate throats , lobes 5, erect, linear; styles not divided . Cypselae narrowly cylindric or ± prismatic , 5(-10) -ribbed, glabrous ; pappi readily falling or fragile, of 60-100+, white, barbellulate or smooth bristles . x = 30.

Species 1: introduced ; temperate Eurasia , n Africa.[1]

Taxonomy

Synonyms

Chevreulia Sarmentosa • Chevreulia sarmentosa (Pers.) S. F. Blake

Similar Species

Members of the genus Tussilago

ZipcodeZoo has pages for 1 species, subspecies, varieties, forms, and cultivars in this genus:

T. farfara (Butterbur)

More Info

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Further Reading

• Family Asteraceae, part V: [tribe Inuleae] / Michael O. Dillon, Abundio Sagástegui Alva. 26 1991 Chicago, Ill.: Field Museum of Natural History, c1991. url p. 22, p. 70.
• Morton, G. H. 1978. Tussilago. In: N. L. Britton et al., eds. 1905+. North American Flora.... 47+ vols. New York. Ser. 2, part 10, p. 174.

Notes

Contributors

• Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 15, 2012.

Identifiers

• Biodiversity Heritage Library NamebankID: 9362452
• Global Biodiversity Information Facility Taxonkey: 15214390
• Globally Unique Identifier: urn:lsid:ipni.org:names:256951-1
• Zipcode Zoo Species Identifier: 3150054

Footnotes

1. Theodore M. Barkley  "Tussilago". in Flora of North America Vol. 20 Page 541, 635. Oxford University Press. Online at EFloras.org. [back]

©2004-2012 David Stang. All rights reserved.