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Hedera helix L. subsp. helix
leaves of a wild specimen
Digital Plant Collection 2020
" Coach " Tutoring Center / Research Project
Radoslaw Janusz Walkowiak
radekwalkowiak@zohomail.eu
Editing and graphic design
Marek Nowicki
nowicki84@tlen.pl
Hedera helix L. subsp. helix Sp. Pl. 2. 1753
(ivy, common ivy, English ivy, European ivy)
leaves of a wild specimen © All rights reserved,
Przemysl, Poland, 2020 / " Coach " Tutoring
Center / Research Project
Published online: 07-12-2020
Open Access
Copyright / Published by: CTC Biology Team
The leaves are evergreen, twisted. Hairy in youth, then
naked. The leaf blades are dark green on the top with a clear
network of light yellow veins and shiny, underneath lighter,
matte.
The leaves turn red at lower temperatures, are leathery and
double-faced (heterophilia).
Set on sterile shoots, 3-5 lobes (triangular flaps), heart-
shaped at the base, blunt at the top, 4 to 10 cm long and
wide (small in many varieties). The leaves of the lower
shoots are usually more strongly indented. Leaves growing
on flowering shoots are ovate or ovoid-lanceolate, entire
edges, pointed, strongly shiny.
The first leaves of ivy sprouted from the seed are similar.
Under the inflorescences, the leaves are narrow, lanceolate.
Petiole 3-7 (11) cm long, usually brown or reddish brown on
top. The leaf life is 3 years.
Ivy leaves are a good example of a mosaic leaf, i.e. the
arrangement of leaves so that they do not obscure each
other.
Radoslaw Walkowiak. 2020. Hedera helix ssp. helix, leaves of a wild
specimen. CTC Digital Plant Collection 2020
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(c) CTC PAPER 2020
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Botanical Report