Associations
(
englanti
)
tarjonnut BioImages, the virtual fieldguide, UK
Foodplant / sap sucker
Brachycaudus helichrysi sucks sap of Achillea ptarmica
In Great Britain and/or Ireland:
Foodplant / gall
larva of Campiglossa argyrocephala causes gall of capitulum of Achillea ptarmica
Other: sole host/prey
Foodplant / open feeder
larva of Cassida sanguinosa grazes on leaf of Achillea ptarmica
Foodplant / open feeder
adult of Chrysolina graminis grazes on leaf of Achillea ptarmica
Foodplant / parasite
Golovinomyces cichoracearum parasitises live Achillea ptarmica
Foodplant / miner
larva of Liriomyza ptarmicae mines leaf of Achillea ptarmica
Foodplant / miner
larva of Phytomyza corvimontana mines leaf of Achillea ptarmica
Other: sole host/prey
Foodplant / parasite
amphigenous telium of Puccinia cnici-oleracei parasitises live leaf of Achillea ptarmica
Remarks: season: 7-11
Other: minor host/prey
Foodplant / parasite
apothecium of Schizothyrioma aterrimum parasitises live stem of Achillea ptarmica
Foodplant / parasite
apothecium of Schizothyrioma ptarmicae parasitises live stem of Achillea ptarmica
Remarks: season: 6-9
Foodplant / miner
larva of Trypeta artemisiae mines leaf of Achillea ptarmica
Comments
(
englanti
)
tarjonnut eFloras
Achillea ptarmica is naturalized from Eurasia. "Double-flowered" plants originated as cultivars; apparently, they persist outside of cultivation.
- lisenssi
- cc-by-nc-sa-3.0
- tekijänoikeus
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
(
englanti
)
tarjonnut eFloras
Perennials, 30–60+ cm (rhizomatous). Stems 1, erect, branched distally, proximally glabrate, distally villous or tomentose. Leaves sessile; blades linear to narrowly lanceolate, 3–10 × 3–5 mm, (bases slightly clasping, margins usually serrulate, rarely subentire), faces glabrous or sparsely hairy on midveins adaxially. Heads 3–15+, in simple or compound, corymbiform arrays. Phyllaries 25–30+ in ± 3 series, (light green, midribs yellowish, margins light brown) lanceolate to oblanceolate, faces tomentose. Receptacles flat to slightly convex; paleae oblanceolate, 3–4 mm. Ray florets 8–10(–13), styliferous and sterile (45–70, pistillate, fertile, in horticultural doubles); corollas white, laminae suborbiculate, 4–5 × 4–5 mm (5–7 × 3.5–4.5 mm in doubles). Disc florets 45–75+ (sometimes 0 in doubles); corollas grayish white, ca. 3 mm. Cypselae 1.5–2 mm. 2n = 18.
- lisenssi
- cc-by-nc-sa-3.0
- tekijänoikeus
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Comprehensive Description
(
englanti
)
tarjonnut North American Flora
Achillea ptarmica L. Sp. PI. 898. 1753
Plarmica inlegrifolia Gilib. Fl. Lithuan. 216. 1782.
Achillea sylvestris S. F. Gray, Nat. Arr. Brit. PI. 2: 458. 1821.
Ptarmica vulgaris DC. Prodr. 6: 23. 1837.
A perennial, with a creeping rootstock; stem 3-6 dm. high, erect, sulcate, branched above, glabrous, or pubescent above; leaves glabrous or nearly so, linear, 4-10 cm. long, 3-5 mm. wide, closely and finely serrate; heads few in open simple or compound corymbs; involucre hemispheric, villous, 4-5 mm. high, 8 mm. broad; bracts 25-30, in about 3 series, the outer lanceolate, the inner oblong, all acutish and with pale margins; ray-flowers 8-10; Ugules white, 4-5 mm. long, suborbicular, round-lobed; disk-flowers 50-75; corollas 3 mm. long; achenes 2 mm. long, broadly wing-margined.
Type locality: Temperate Europe.
Distribution: Labrador to New York, Missouri, and Michigan; adventive or naturalized from northern Europe and Asia.
- bibliografinen lainaus
- Per Axel Rydberg. 1916. (CARDUALES); CARDUACEAE; TAGETEAE, ANTHEMIDEAE. North American flora. vol 34(3). New York Botanical Garden, New York, NY
Achillea ptarmica: Brief Summary
(
englanti
)
tarjonnut wikipedia EN
Achillea ptarmica is a European species of herbaceous perennial flowering plant in the genus Achillea of the daisy family Asteraceae. Common names include the sneezewort, sneezeweed, bastard pellitory, European pellitory, fair-maid-of-France, goose tongue, sneezewort yarrow, wild pellitory, and white tansy. It is widespread across most of Europe and naturalized in scattered places in North America. It is native to Europe and western Asia.
Achillea ptarmica has loose clusters of showy white composite flower heads that bloom from June to August. Its dark green leaves have finely toothed margins. Like many other plants, the sneezewort's pattern of development displays the Fibonacci sequence.
The name ptarmica comes from the Greek word ptairo (=sneeze) and means 'causes sneezing'.
- lisenssi
- cc-by-sa-3.0
- tekijänoikeus
- Wikipedia authors and editors