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Helichrysum elatum

(Irontree)

Overview

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Interesting Facts

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Common Names

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Common Names in English:

Irontree, Parrotia, Persian Ironwood, Persian Parrot Tree, Persian Parrotia

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 Helichrysum

[Annuals , biennials, perennials ,] subshrubs , or shrubs (often aromatic ), mostly 20-80 cm; taprooted. Stems usually 1, usually erect , sometimes decumbent to procumbent (± woolly-tomentose, usually stipitate- or sessile-glandular as well) . Leaves cauline; alternate; petiolate [sessile]; blades ovate [spatulate to lanceolate or linear ], bases cuneate to truncate [usually clasping and/or decurrent], margins entire (sometimes revolute ), faces concolor [bicolor], usually gray to white and tomentose or sericeous [adaxial sometimes greenish and glabrescent ], sometimes stipitate- or sessile-glandular as well. Heads disciform or discoid , in glomerules in corymbiform arrays. Involucres campanulate , 4-8 mm. Phyllaries in 3-5[-7] series, whitish [stramineous , orange, reddish, or pinkish] (opaque or hyaline , usually shiny; stereomes green, usually sessile-glandular distally) . Receptacles flat, glabrous , epaleate. Peripheral (pistillate ) florets 0 or 1-2 (fewer than bisexual ) : corollas yellowish. Inner (bisexual) florets 3-30[-50+]; corollas usually yellowish. Cypselae ± columnar , faces usually smooth , sometimes papillate (roughened by raised, imbricate tips of epidermal cells ), sometimes with 4-6 longitudinal ridges , glabrous [± strigose or myxogenic, papilliform hairs ]; pappi readily falling, of 12-20 distinct or loosely coherent basally, barbellate [subplumose] bristles in 1 series. x = 7.

Species about 600: introduced ; mostly Old World, especially s Africa and Madagascar.[1]

Physical Description

Habit: Deciduous. Small, single-stemmed tree or large, multi-stemmed shrub . Oval-rounded form.

Flowers: Flower Color: near white, white

Foliage: Summer foliage: Red-purple new leaves turn green in summer. • Fall foliage: Brilliant yellow, orange, and scarlet in the fall .

Size/Age/Growth

Growth Rate: Moderate. • Size: 20' tall, 15' wide.

Habitat

Hardy to zone 5.

Biology

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Growth

Soil: Slightly acidic, well-drained soil preferred.

Sunlight: Sun Exposure: Full sun or part shade.

Taxonomy

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Notes

Name Status: Accepted Name .

Comment: Data Providers: New Zealand Plant Name Database, LCR Editor, Govaerts World Compositae Checklist A-G, IPNI, Queensland Census, New South Wales Flora Online. GCC LSID: urn :lsid:compositae.org:names:37CDA1FD-A4CF-41FD-B934-C1A09F102212

Last scrutiny: 24-Aug-09

Similar Species

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Members of the genus Helichrysum

ZipcodeZoo has pages for 47 species, subspecies, varieties, forms, and cultivars in this genus:

H. adenophorum (Branched Everlasting) · H. angustifolium (Curry Plant) · H. angustifolium 'Nana' (Curry Plant) · H. arenarium (Everlasting Flower) · H. argyrophyllum (Golden Guinea Flower) · H. bellidioides (New Zealand Strawflower) · H. bracteatum (Bracted Strawflower) · H. bracteatum 'Pink Glow' (Everlasting Daisy) · H. bracteatum 'Salsa' (Everlasting Daisy) · H. bracteatum 'Silvery Rose' (Everlasting Daisy) · H. bracteatum 'Sundaze Bronze' (Everlasting Daisy) · H. bracteatum 'Sundaze Flame' (Everlasting Daisy) · H. bracteatum 'Sundaze Golden Beauty' (Everlasting Daisy) · H. bracteatum 'Sundaze Golden Yellow' (Everlasting Daisy) · H. bracteatum 'Sundaze Pink' (Everlasting Daisy) · H. bracteatum 'Sundaze White' (Everlasting Daisy) · H. bracteatum 'Sundaze Yellow' (Everlasting Daisy) · H. bracteatum 'Tall Double Mix' (Everlasting Daisy) · H. bracteatum 'Victorian Blush' (Everlasting Daisy) · H. bracteatum 'Wallaby Flame' (Everlasting Daisy) · H. elatum (Irontree) · H. foetidum (Stinking Ever-Lasting) · H. fontanesii (Everlasting) · H. formosissimum (Everlasting-Flower) · H. heldreichii (Helichrysum) · H. italicum italicum (Curry Plant) · H. leucopsideum (Satin Everlasting) · H. melitense (Maltese Everlasting) · H. milfordiae (Alpine Everlasting) · H. petiolare (Helichrysum) · H. petiolare 'Lemon' (Helichrysum) · H. petiolare 'Licorice Splash' (Variegated Licorice Plant) · H. petiolare 'Limelight' (Helichrysum) · H. petiolare 'Petite' (Helichrysum) · H. petiolare 'Splash' (Helichrysum) · H. petiolare 'Variegata' (Helichrysum) · H. petiolare 'White Licorice' (Helichrysum) · H. roseum 'Pierrot' (Crisp Everlasting) · H. rutidolepis (Pale Everlasting) · H. scorpioides (Button Everlasting) · H. stoechas (Curry Plant) · H. thianschanicum 'Icicle' (Helichrysum) · H. 'Dreamtime Jumbo White' (White Strawflower) · H. 'Dreamtime Jumbo Yellow' (Yellow Strawflower) · H. 'Ruby Cluster' (Straw Flower) · H. 'Silver Mist' (Dwarf Licorice Plant) · H. 'Sulphur Light' (Sulphur Light Perennial Strawflower)

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 December 03, 2007:

Identifiers

Footnotes

  1. Guy L. Nesom "Helichrysum". in Flora of North America Vol. 19, 20 and 21 Page 59, 384, 387, 425. Oxford University Press. Online at EFloras.org. [back]
Last Revised: 2012-07-21