1407
Synonym |
: |
Gunnera brasiliensis Schindl. |
Family |
: |
Gunneraceae |
Local name |
: |
English- Brazilian giant-rhubarb |
Flowering and fruiting
period |
: |
June to July |
Distribution |
: |
native to the Serra do Mar mountains of Brazil |
Habitat |
: |
Mountain slops |
Uses |
|
Gunnera manicata's large
size (up to 3m), and distinctive leaves makes it attractive to gardeners and
it is widely planted for ornamental reasons. |
Key
botanical characters: G. manicata is a large, herbaceous clump-forming perennial
that grows up to 3 m in height and spreads up to 4 m. Leaves are deep green,
round to kidney-shaped, pleated and can grow up to 2.5 m long and 2 m wide.
Leaves are palmately lobed, sharply toothed and have very prominent, prickly
veins underneath. Stems are long (up to 2.5m) and have short, rubbery
prickles that are reddish in colour. Rhizomes are stout and horizontal, and
house cyanobacteria. G. manicata flowers in summer on stiff, straight and
closely branches concial panicles 1-2 m. Flowers are minute, epigynous and
green or rusty red in colour. G. manicata exhibits a combination of perfect
and unisexual flowers. Fruit are
drupes, 2-3 mm, red-green in colour rounded and barely fleshy . The bracts of
G. manicata, which are a diagnostic feature, are up to 12 cm long, whitish
green in colour and are very thin. Apart from the veins, the bracts are
transparent when dry and deeply laciniate with long lobes also from near the
base. These primary lobes (laciniae) are often one third to half the length
of the bract and are in their turn laciniately divided into secondary lobes
with fimbriate margins. Only the adaxial side of the bract is hairy . |
Comments
Post a Comment