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Helleborus bocconei, Tenore (1823)

  • Perennial, mostly glabrous to slightly pubescent: 8-12" in flower
  • Leaves basal, pedate, serrate to very coarsely toothed; leaflets often
    raggedly divided for approximately half the length
  • Flowers green to white-green, around 2-2.5" in diameter
  • Italy, Sicily
  • Open woodland, scrub around 1500-5500'

Helleborus bocconei represents a group of acaulescent plants that are highly
polymorphic, but the main features that distinguish it from most acaulescent
species other than its geographical position include: relatively large green or
yellow-green flowers that are pale without red markings; large leaves that are
frequently quite divided, but generally less so than H. multifidus and with wider
leaflets; generally robust and vigorous but often with leaves and flowers that
are less hardy than other acaulescent species. It is one of the earliest
flowering species and is wintergreen in much of its natural range (McLewin,
Mathew and Thomsen. See below).

This Italian species is currently synonymous with Helleborus multifidus
subsp. bocconei (Mathew). There is however evidence that it should be
regarded as a separate species, and like the other subspecies of H.
multifidus on this site, I have here retained only the name 'bocconei' in an
attempt to avoid confusion.

Sicilian plants have also been referred to as H. siculus in the past, but though
the plants occur in a different environment than those on the Italian mainland,
the plants on Sicily do not seem morphologically unique, and molecular
analysis has shown that sequencing is identical to that of H. bocconei.
**
Plants in eastern Sicily are not unlike those on the adjacent mainland. Plants
in western Sicily are generally smaller and often have lighter colored sepals.

In the northern Italian provinces, H. bocconei and H. viridis grow in close
proximity to one another. There are plants that appear to be intermediate in
form (and there is the possibility of hybrids) between the two species.
Therefore, some examples of H. bocconei look very much like H. viridis (This
is yet another example of why seedlings in gardens should not be labelled as
species based on their morphological appearance alone.). Still, in most of its
range, H. bocconei represents a fairly distinct species.

H. bocconei has larger flowers than H. multifidus, and in many cases it is a
larger and more vigorous plant. McLewin, Mathew, and Thomsen point out that
despite the fact H. multifidus is described as a green flowered species, most
populations include plants with reddish markings on the rim of the sepals and
may also have markings on the interior of the sepals. In H. multifidus, the
base of the leaflets (at the place where leaves are divided) also commonly
have red markings even in mature leaves; in H. bocconei the presence of
permanent anthocyanins appear to be absent.

These are underused plants in gardens and are arguably one of the more
useful green-flowered acaulescent species from a horticultural viewpoint.

________________________________________________________

** From "Helleborus bocconei and the Hellebores of Italy" (Mclewin, Mathew,
and Thomsen). Much of the information on this page (as well as the pages  H.
'abruzzicus' and H. 'liguricus') derives from the article. At the time this page
was written the article was still unpublished but was scheduled to be the tenth
in a series of articles that have appeared in The New Plantsman/Plantsman.
These articles are extremely valuable for anyone with a serious interest in
hellebores and who is interested in recent information on hellebore species
and taxonomy.


Sicilian Helleborus bocconei with pale
flowers held high above the deeply
dissected foliage.
Photos by Matthias Thomsen.