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Filago pyramidata

(Broadleaf Cottonrose)

Interesting Facts

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Common Names

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Common Names in English:

Broadleaf Cottonrose

Common Names in French:

Cotonnière Spatulée

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 Filago

Annuals , (1-) 5-40 cm. Stems [0] 1, ± erect , or 2-7[-10+], ± ascending [prostrate ]. Leaves cauline [basal]; alternate; blades lanceolate to oblanceolate [spatulate or ± round ]. Heads in (dense, spheric [hemispheric ]) glomerules of [2-]8-35+ in ± dichasiiform arrays [borne singly]. Involucres 0 or inconspicuous. Phyllaries usually 0, rarely 1-4, unequal (similar to paleae). Receptacles cylindric to clavate (heights [2-]5-15 times diams.), glabrous . Pistillate paleae (except usually innermost) ± persistent [falling], ± erect to ascending; bodies with 5+ nerves (nerves ± parallel, obscure ), lanceolate to ovate , open to ± folded (each at most enfolding, not enclosing a floret) ; wings erect to recurved (apices acuminate to aristate ). Innermost paleae usually all pistillate, in some species bisexual and pistillate, persistent or tardily falling, usually 5, erect to ascending [spreading ] (scarcely enlarged) in fruit, shorter than other pistillate paleae; bodies lanceolate to ovate. Pistillate florets [12-]27-40+. Functionally staminate florets 0. Bisexual florets (1-) 2-9(-11) ; corolla lobes 4, ± equal. Cypselae brown, ± monomorphic : terete to ± compressed , cylindric to ± obovoid , usually straight, not gibbous , faces papillate to muricate [glabrous, smooth ], dull ; corolla scars apical [subapical ]; pappi: outer pistillate 0, inner pistillate and bisexual of [3-]13-21 bristles (visible in heads ). x = 14.

Species 12(-23) : introduced ; Europe, w Asia, n Africa, Atlantic Islands, introduced in North America, Australia.

The name Filago has been used also for the genus now usually recognized as Evax Gaertner. Here Filago, in the narrow sense, contains twelve Old World species. Six species long included in Filago in North America are here separated as Logfia.

Filago species grow in open, dry or somewhat moist habitats of arid , semiarid, Mediterranean, and humid-temperate to subtropical climates. The species in the flora grow in disturbed habitats; neither appears to be aggressively weedy.[1]

Physical Description

Species Filago pyramidata

Filago pyramidata was first collected in North America in 1935 (G. Wagenitz 1976). It is known in the flora only from northwestern California and from Saturna Island, British Columbia. It is variable in its native range ; additional named varieties may eventually turn up in the flora. The name F. vulgaris was misapplied to this species by P. A. Munz (1968). [source]

Habit: Forb/herb

Biology

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Reproduction

Duration: Annual

Taxonomy

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Synonyms

Filago gallica L. • Filago germanica Hudson • Oglifa gallica (L.) Chrtek & Holub

Notes

Name Status: Accepted Name .

Comment: Data Providers: African Flowering Plants Database , New Zealand Plant Name Database, Govaerts World Compositae Checklist A-G, Tropicos, Euro+Med, LCR Editor. GCC LSID: urn :lsid:compositae.org:names:394841AB-0857-4614-BDC7-E7BF9EE24565

Last scrutiny: 19-Aug-09

Similar Species

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Members of the genus Filago

ZipcodeZoo has pages for 5 species, subspecies, varieties, forms, and cultivars in this genus:

F. arizonica (Arizona Cottonrose) · F. californica (California Cottonrose) · F. depressa (Dwarf Cottonrose) · F. pyramidata (Broadleaf Cottonrose) · F. vulgaris (Burrdaisytree)

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 November 24, 2007:

Identifiers

Footnotes

  1. James D. Morefield "Filago". in Flora of North America Vol. 19, 20 and 21 Page 26, 28, 385, 387, 444, 447, 448, 461. Oxford University Press. Online at EFloras.org. [back]
Last Revised: 7/15/2012