Bigger flowers? This is it =
Amorphophallus titanum = "titan alum," commonly regarded as the largest single-stem flower. This one bloomed last week in a greenhouse at the You've-a-Nursery of MessyChewBits. The gigantic flower, up to three meters high (this one was about one meter tall), smells like rotting flesh to attract the flies that pollinate it (common name = "corpse flower" for the stench). The flowers only last a few days and a plant may not flower again for up to ten years. They cut a little window in the bract (AKA spathe) that surrounds the central part (responsible for the generic name) to expose the flower parts, female pistils below, stamen with masses of sticky pollen above. Obligatorily cross-pollinating.
Here are some details from WIKIPEDIA:
The titan arum's
inflorescence can reach over 3 metres (10 ft) in height. Like the related
cuckoo pint and
calla lily, it consists of a fragrant
spadix of flowers wrapped by a
spathe, which looks like a large petal. In the case of the titan arum, the spathe is a deep green on the outside and dark burgundy red on the inside, with a deeply furrowed texture. The spadix is hollow and resembles a large
baguette. Near the bottom of the spadix, hidden from view inside the sheath of the spathe, the spadix bears two rings of small flowers. The upper ring bears the male flowers, the lower ring is spangled with bright red-orange
carpels. The "fragrance" of the titan arum resembles rotting meat, attracting
carrion-eating
beetles and flesh flies (family
Sarcophagidae) that
pollinate it. The inflorescence's deep red color and texture contribute to the illusion that the spathe is a piece of meat. During bloom, the tip of the spadix is approximately human body temperature, which helps the perfume volatilize; this heat is also believed to assist in the illusion that attracts carcass-eating insects.
Both male and female flowers grow in the same
inflorescence. The female flowers open first, then a day or two following, the male flowers open. This usually prevents the flower from
self-pollinating.
After the flower dies back, a single leaf, which reaches the size of a small tree, grows from the underground
corm. The leaf grows on a somewhat green stalk that branches into three sections at the top, each containing many leaflets. The leaf structure can reach up to 6 metres (20 ft) tall and 5 metres (16 ft) across. Each year, the old leaf dies and a new one grows in its place. When the corm has stored enough energy, it becomes dormant for about four months. Then the process repeats.
Small corm of
A. titanum,
Muttart Conservatory, Edmonton, Canada.
The corm is the largest known, typically weighing around 50 kilograms (110 lb).
[4] When a specimen at the Princess of Wales Conservatory,
Kew Gardens, was repotted after its dormant period, the weight was recorded as 91 kilograms (201 lb).
[5] In 2006, a corm in the Botanical Garden of Bonn, Germany was recorded at 117 kilograms (258 lb),
[6] and an
A. titanum grown in Gilford, New Hampshire by Dr. Louis Ricciardiello in 2010 weighed 138 kilograms (305 lb).
[7][8] However the current record is held by a corm grown at the Royal Botanic Garden Edinburgh, weighing 153.9 kilograms (339 lb) after 7 years growth from an initial corm the size of an orange.
[9]