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strawflower

            The genus Helichrysum (pronounced [hɛliˈkɹaɪsəm]) consists of an estimated 600 species, in the sunflower family (Asteraceae). The type species is Helichrysum orientale.

The name is derived from the Greek words helisso (to turn around) and chrysos (gold). Common names include strawflower and everlasting.

It occurs in Africa (with 244 species in South Africa), Madagascar, Australasia and Eurasia. The plants may be annuals, herbaceous perennials or shrubs, growing to a height of 60-90 cm.

Their leaves are oblong to lanceolate. They are flat and pubescent on both sides. The bristles of the pappus are scabrous, barbellate, or plumose.

The receptacle (base of the flower head) is often smooth, with a fringed margin, or honey-combed, and resemble daisies. They may be in almost all colors, except blue. There are many capitula and generally flat-topped corymbs or panicles. The corolla lobes show glandular hairs at the abaxial surface.

Several species are grown as ornamental plants, and for dried flowers. When cut young and dried, the open flowers and stalks preserve their colour and shape for long periods.

Helichrysum species are used as food plants by the larvae of some Lepidoptera species including the bucculaticid leaf-miners Bucculatrix gnaphaliella (which feeds exclusively on Helichrysum arenarium) and Bucculatrix helichrysella (feeds exclusively on H. italicum) and the Coleophora case-bearers C. caelebipennella, C. gnaphalii (feeds exclusively on H arenarium) and C. helichrysiella (feeds exclusively on H. italicum).

Helichrysum augustifolium is steam distilled to produce a yellow-reddish essential oil popular in fragrance for its unique scent, best described as a mixture of burnt sugar and ham.

Taken in: Deutschland / Hessen / Wiesbaden (show map)

Taken on: January 24, 2010

Tags:

flower

macro

Strohblume

Makro

2010

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Camera: Sony DSC-T100, f/3.5, 1/50 sec, 5.8mm, ISO 100 (more info) (hide info)

Camera:	Sony DSC-T100
Aperture:	f/3.5
Exposure Time:	0.02 sec (1/50)
Focal Length:	5.8mm
ISO:	100
Exposure Bias:	0 EV
Flash:	Off, Did not fire
Exposure Program:	Program AE
Exposure Mode:	Auto
Metering Mode:	Multi-segment
White Balance:	Auto
Color Space:	sRGB
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