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False Mayweed

Tripleurospermum maritimum (L.) Koch

Associations

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Foodplant / miner
larva of Phytomyza pullula mines leaf of Tripleurospermum maritimum agg.

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Description

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Perennials (sometimes biennials), 10–50(–80) cm. Stems 1–5+, usually procumbent, sometimes ascending (± erect), branched distally, glabrous or sparsely hairy. Leaf blades 2–8 cm, ultimate lobes ± cylindric, 4–20 mm, ± fleshy, apices obtuse or mucronate. Heads (3–)10–50 in corymbiform arrays or borne singly. Phyllaries centrally dark greenish or brownish, oblong to narrowly triangular or broadly triangular, unequal, scarious margins pale to dark brown or blackish brown, 0.2–1 mm wide. Ray florets 10–34+; corollas 10–16[–20] mm. Disc corollas ca. 2.5 mm. Cypselae pale to dark blackish brown, ribs ± contiguous or separated by less than 1/4 their widths (1–2 supernumerary ribs sometimes present), abaxial-apical resin glands elongate (lengths 2+ times widths), abaxial faces transversely rugose, minutely roughened on faces and between ribs. 2n = 18, 36.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 19: 548, 549, 550 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Synonym

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Matricaria maritima Linnaeus, Sp. Pl. 2: 891. 1753; Chamomilla maritima (Linnaeus) Rydberg
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 19: 548, 549, 550 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
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eFloras

Tripleurospermum maritimum

provided by wikipedia EN

Tripleurospermum maritimum (syn. Matricaria maritima[1]) is a species of flowering plant in the aster family commonly known as false mayweed[2] or sea mayweed. It is found in many coastal areas of Northern Europe, including Scandinavia and Iceland, often growing in sand or amongst beach pebbles.

In Iceland, sea mayweed is known as Baldr's eyelashes (baldursbrá), though this name is given to all mayweed flowers in Norway and Sweden.

Description

Tripleurospermum maritimum is a herbaceous biennial or short-lived perennial which grows with prostrate to erect stems to a height of 60 cm (24 in).[3] As with many maritime plants, it is a halophyte[4] with fleshy leaves which help it to survive in the harsh salty environment. The leaves are divided into short segments. When crushed, they yield a sweet smell similar to that of its relative chamomile, though much fainter.

The daisy-like flowers usually appear between July and September and can reach up to 50 mm across. The stems of the plant are frequently tinged red towards the base.

Habitat

Found around the coast in the uppershore and waste ground.[5]

References

  1. ^ Tripleurospermum maritimum (L.) W.D.J. Koch subsp. maritimum false mayweed, Plants Database, usda.gov
  2. ^ USDA, NRCS (n.d.). "Tripleurospermum maritimum". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 15 December 2015.
  3. ^ Clapham, A. R.; Tutin, T. G.; and Warburg, E. F.; 1968, Excursion Flora of the British Isles, Cambridge University Press, ISBN 0-521-04656-4
  4. ^ "Sea mayweed". wildflowerfinder.org. Retrieved 11 September 2020.
  5. ^ Hackney, P. ed. 1992. Stewart and Corry's Flora of the North-east of Ireland. Institute of Irish Studies, The Queen's University of Belfast ISBN 0-85389-446-9

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Tripleurospermum maritimum: Brief Summary

provided by wikipedia EN

Tripleurospermum maritimum (syn. Matricaria maritima) is a species of flowering plant in the aster family commonly known as false mayweed or sea mayweed. It is found in many coastal areas of Northern Europe, including Scandinavia and Iceland, often growing in sand or amongst beach pebbles.

In Iceland, sea mayweed is known as Baldr's eyelashes (baldursbrá), though this name is given to all mayweed flowers in Norway and Sweden.

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