Arum pictum
Arum pictum is a low-growing, autumn-flowering arum with beautiful, shiny leaves and a purple spathe.
Species Information
- Scientific Name: Arum pictum L.f.
- Synonym(s): Arum corsicum
- Conservation Status: No specific threats are known, although the Mediterranean coastal habitat is being reduced as a result of urban development.
- Habitat: Mediterranean scrubland; often under Pinus halepensis.
- Key Uses: Ornamental.
- Known hazards: None known, although related species of Arum are poisonous.
Taxonomy
- Class: Equisetopsida
- Subclass: Magnoliidae
- Superorder: Lilianae
- Order: Alismatales
- Family: Araceae
- Genus: Arum
About this species
Arum pictum is unique in the genus Arum in its autumn-flowering, and in this respect, as well as in its horse dung-like scent, resembles members of the related genus Biarum. The shiny, purplish and silver leaves are very beautiful, and persist through the winter.
Geography & Distribution
Native to Majorca (Mallorca), Minorca, Corsica, Sardinia and the west coast of central Italy.
Description
A winter-growing herb with a whitish tuber 5–7 cm across. The arrow-head-shaped leaves are about 30 cm long and 15 cm wide. At first they are shiny and purplish, later becoming silvery or whitish. The flowering stem (spadix) appears with or before the leaves, and smells strongly of horse dung. The spadix is 8–13 cm long, the appendage stout, cylindrical and purplish-black. The sheathing bract (spathe) is 9–19 cm long, 4–6.5 cm wide, greenish on the outside, deep, velvety purple-brown on the inside, with a mottled, greenish tip, and is slightly hooded. Three whorls of organs are found at the base of the spadix and enclosed in the folded spathe: the uppermost is a whorl of bristly staminodes (sterile stamens); in the middle there is a large cluster of small, male flowers; beneath there is a cluster of larger, female flowers. The fruits, which are red when ripe, are berries 5–11 mm long.
Threats & Conservation
The habitat of Arum pictum, like that of all Mediterranean coastal plants, is under pressure as a result of spreading urban development, particularly building for tourism.
Uses
Arum pictum is cultivated as an ornamental.
Millennium Seed Bank: Seed storage
The Millennium Seed Bank partnership aims to save plant life world wide, focusing on plants under threat and those of most use in the future. Seeds are dried, packaged and stored at a sub-zero temperature in Kew's seed bank vault at Wakehurst.
Number of seed collections stored in the Millennium Seed Bank: Three.
Cultivation
Arum pictum is easily grown in a large pot. It should be kept dry in the summer, and watered in the winter (until May).
This species at Kew
Arum pictum is grown in the Rock Garden at Kew and may also be on display in the Davies Alpine House when it is flowering (October).
Pressed and dried specimens of Arum pictum are held in Kew’s Herbarium, where they are available to researchers from around the world, by appointment. The details of some of these can be seen on-line in the Herbarium Catalogue.
Curtis's Botanical Magazine
Curtis’s Botanical Magazine (Editor: Martyn Rix) provides an international forum of particular interest to botanists and horticulturists, plant ecologists and those with a special interest in botanical illustration.
Now well over two hundred years old, the Magazine is the longest running botanical periodical featuring colour illustrations of plants. Each four-part volume contains 24 plant portraits reproduced from watercolour originals by leading international botanical artists. Detailed but accessible articles combine horticultural and botanical information, history, conservation and economic uses of the plants described.
Published for the Royal Botanic Gardens, Kew by Blackwell Publishing.
See the Wiley-Blackwell Subscription Information page for rates (for both print and online).
References and credits
Boyce, P. (1988). Arum pictum. Curtis’s Bot. Mag. 5: 72-76.
Boyce, P. (1993). The Genus Arum. Kew Magazine Monograph, Royal Botanic Gardens, Kew.
World Checklist of Selected Plant Families (2010). The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet at: http://apps.kew.org/wcsp/namedetail.do?name_id=16344 (accessed 25 May 2011).
Kew Science Editor: Martyn Rix
Kew contributors: Steve Davis (Sustainable Uses Group)
Copyediting: Emma Tredwell
While every effort has been taken to ensure that the information contained in these pages is reliable and complete, the notes on hazards, edibility and suchlike included here are recorded information and do not constitute recommendations. No responsibility will be taken for readers’ own actions. Full website terms and conditions.
Follow Kew
Keep up to date with events and news from Kew
Fact Box
Capsicum annuum
chilli pepper
Despite being named Capsicum annuum (annuum meaning annual), this species is actually perennial and can grow into a sizeable shrub if shielded from winter frosts.
Related Tags
- the UK
- interesting
- landscapes
- amazing
- beautiful
- english garden
- around the world
- adventurous
- irreplaceable
- ground breaking
- discovered
- challenging
- common
- flowering
- wild
- newly discovered
- new
- at risk
- endangered
- rainforest
- uncharted
- needs help
- together
- rich
- innovative
- powerful
- for kids
- inspiring
- medicinal
- weed
- edible
- tasty
- creative
- imaginative
- extraordinary
- ornamental
- exotic
- fun
- popular
- english heritage
- historical
- romantic
- rare
- valuable
- ancient
- of use
- massive
- scarce
- rare
- exploited
- fragile
- urgent
- useful
- active
- unusual
- collectable
- high
- old
- ancient
- Kew overseas
- donate
- for family
- gifts that help
- money saving
- popular
- remember
- save
- royal
- give money
- in urgent need
- sponsor
- Kew at home
- collections
- surveying
- wet tropics
- systematics
- chemistry
- diversity
- verge of extinction
- big
- useful plants
- mysterious
- give time
- Africa
- conserving
- fieldwork
- events
- treasures
- partnerships
- successes
- pretty
- fragrant
- dangerous
- high up
- wet
- essential
- drylands
- spiky
- brand new
- hot
- friends & family
- dry
- hot spot
- garden plants
- woodland
- business
- South East Asia
Plant & Fungi blogs from Kew
The cool blue seeds of the Malagasy traveller’s tree
by: Wolfgang Stuppy, Millennium Seed Bank blog 06 Mar 2012
Truly blue seeds are about as rare as hens’ teeth. In the first of his ‘Seed of the Month’ series, Millennium Seed Bank seed morphologist, Wolfgang Stuppy, explains why.
- 29 likes
- 4 comments
Studying yams in Madagascar
by: Tim Harris, Herbarium blog 27 Jan 2012
Kew and Feedback Madagascar are collaborating to look at the preferences for different species of edible yam in Madagascan rural communities. Find out about the latest research being undertaken as part of Kew's work in Madagascar.
- 9 likes
- 0 comments
Conservators care for tapa cloth at Kew
by: Daniel Barter & Cristina Liria, Economic Botany blog 15 Aug 2011
Two conservation students from Camberwell College of Arts have spent three weeks surveying barkcloth specimens from the Pacific.
- 5 likes
- 0 comments
Extinct to secure: how we saved Ascension’s endemic parsley fern
by: Colin Clubbe, UK Overseas Territories team blog 23 Dec 2010
In the space of 17 months, the status of the tiny Ascension Island parsley fern (Anogramma ascensionis) has gone from 'thought extinct' to 'secure' because of the amazing collaborative efforts of a small group of very dedicated people.
- 29 likes
- 1 comment
The cool blue seeds of the Malagasy traveller’s tree
by: Wolfgang Stuppy, Millennium Seed Bank blog 06 Mar 2012
Truly blue seeds are about as rare as hens’ teeth. In the first of his ‘Seed of the Month’ series, Millennium Seed Bank seed morphologist, Wolfgang Stuppy, explains why.
- 29 likes
- 4 comments
From Chelsea to Mount Fuji, the legacy of Veitch Nurseries
by: Virginia Mills, Library, Art and Archives blog 20 May 2011
Harry Veitch brought the RHS flower show to Chelsea. His brother brought Japanese flora to Europe. Find out more about the Veitch's from Kew's Directors' Correspondence collection.
- 19 likes
- 1 comment