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Impatiens parviflora [Small Balsam]

Conical Cells
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#1 nfoto

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Posted 19 July 2014 - 07:07

Rørslett, B. 2014. Impatiens parviflora DC. (Balsaminaceae). Small Balsam. Flowers photographed in visible and ultraviolet light. http://www.ultraviol...a-small-balsam/

Impatiens parviflora DC.
NO: Mongolspringfrø
SE: Blekbalsamin
DK: Småblomstret Balsamin
FI: Rikkapalsami
DE: Kleines Springkraut
EN: Small Balsam

This small to medium-sized, up to 0.5 m tall, species originates from Central Asia and colonises shady habitats, often in rich deciduous forests. The leaves are thin and flexible and spread to capture low levels of incident light. It has become naturalised in most of Europe and elsewhere. The fruits open by a virtual explosion when touched lightly, giving rise to vernacular names such as 'touch-me-not'.

Attached Image: IMPA_PAR_B1407185027_VIS.jpg
Image reference: IMPA_PAR_B1407185027_VIS.jpg
Visible light: Nikon Df, Voigtländer APO-Lanthar 125 mm f/2.5 lens, SB-800 flash.

Attached Image: IMPA_PAR_I1407182059_UV.jpg
Image reference: IMPA_PAR_I1407182059_UV.jpg
Ultraviolet light: Nikon D3200 (modified), UV-Nikkor 105 mm f/4.5 lens, Baader U2" (Venus) filter, SB-140 flash.

I. parviflora has an unusual (false) tri-"colour" appearance. There are patches of conical cells around the entrance to the spur.

[ Published 19 July 2014 ]