Facts about Broad-leaved Cudweed (Filago pyramidata)

Comprehensive Description

Description

Broad-leaved cudweed is a somewhat taller and more substantial plant than its close relative, red-tipped cudweed. It, too, is a greyish-green, hairy plant whose leaves are broader and almost spoon-shaped. The flower heads form a pyramidal shape.

Source: ARKive

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Distribution

Gnaphalium dichotomum Willd. ex Spreng.:
Venezuela (South America)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002
Hokche, O., P. E. Berry & O. Huber. 2008. Nuev. Cat. Fl. Vas. Venezuela 1–860. Fundación Instituto Botánico de Venezuela, Caracas, Venezuela. http://www.tropicos.org/Reference/1033110

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Filago pyramidata L.:
Spain (Europe)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002

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National Distribution

United States

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

Source: NatureServe

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Global Range: Native to Mediterranean. Uncommon weed in CA (North Coast Range, north and central San Francisco Bay).

Source: NatureServe

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Range

Found across Europe and into central Asia and North Africa. In the UK, it is confined almost entirely to the southeast of England, with records from Sussex, Surrey, Kent, Essex, Cambridgeshire and sites in Oxfordshire. There may be only nine sites in Britain.

Source: ARKive

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Distribution

Distribution: Mediterranean region, SW and C Asia.

Flora of Pakistan @ eFloras.org

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Morphology

Comments

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).

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Description

Appressed tomentose annuals , 5-30 cm high, with erect primary stem of variable length and divergent branches, usually overtopping the main stem. Leaves oblong-spathulate, apiculate. Capitula c. 8-16 in dense, nearly globose glomerules, 9-12 mm in diameter. Involucre 6 mm long, in the upper half pyramidate and distinctly 5-angled; phyllaries 5-seriate, lanceolate, outer and median carinate, lanate on back, ending in a divergent yellowish arista 1-1.5 mm long, innermost glabrous, phyllaries slightly divergent at fruiting-time. Outer filiform, female florets without pappus in the axils of the phyllaries, in the centre 5-6 (-7) bisexual florets and a varying number of female ones. Cypselas 0.7-1 mm, smooth or thinly papillose, olive brown; pappus in the central florets c. 3 mm long, setae 12-16.

Flora of Pakistan @ eFloras.org

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Diagnostic Description

Synonym

Filago germanica Hudson

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Synonym

Filago germanica sensu Hook.f., Fl. Brit. Ind. 3: 277. 1881 pro parte non L. 1753.

Flora of Pakistan @ eFloras.org

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Habitat

Comments: Disturbed places.

Source: NatureServe

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Habitat

The broad-leaved cudweed prefers arable land which is disturbed regularly, mainly on chalky or calcareous soils. It is a plant of marginal farmland which cannot support more vigorous species. There are also large populations in abandoned chalk quarries.

Source: ARKive

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Cyclicity

Flower/Fruit

Fl.Per.:February-September.

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Molecular Biology

Statistics of barcoding coverage: Filago pyramidata

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Species: 1
Species With Barcodes: 1

Creative Commons Attribution 3.0 (CC BY 3.0)

Source: Barcode of Life Data Systems (BOLD)

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Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: NNA - Not Applicable

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NatureServe Conservation Status

Rounded Global Status Rank: GNR - Not Yet Ranked

Reasons: Native to Mediterranean and weedy in CA.

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Status

Classified as Endangered in the UK, and protected under the Wildlife and Countryside Act, Schedule 8.

Source: ARKive

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Threats

Changes in agricultural practices including greater use of herbicides, the loss of traditional crop rotations, destruction of field margins and highly productive crop planting, have probably been the most damaging to populations of the broad-leaved cudweed. There is also the problem of neglect and recreational pressures on disused chalk pits.

Source: ARKive

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Management

Conservation

This species is listed in the UK Biodiversity Action Plans (UKBAPs), and has been included in English Nature's Species Recovery Programme (SRP). Along with its relative, red-tipped cudweed, and other endangered plants of arable land, the broad-leaved cudweed is part of a plan to encourage farmers and landowners to adopt some of the agri-environment schemes now available. As relatively little is known about this species' ability to survive as dormant seed in the ground, the main task is to influence the management of those sites where it still occurs, or has been recorded in the recent past. Re-introducing the plant has not been ruled out as a future possibility, but more work will have to be done on finding out how long the seeds can survive before germination.

Source: ARKive

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Taxonomy

Comments: Eastern U.S. records of Filago pyramidata are instead F. vulgaris, according to Kartesz (1999), who accepts F. pyramidata only for California within North America. LEM 26Oct01.

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