Aquatic Plants
Bolboschoenus caldwellii
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Wetland Planting Zone |
Shallow Marsh/Deep Marsh |
Approved Format |
600cc |
Family |
Cyperaceae |
Form |
Bolboschoenus caldwellii is a perennial sedge between 30-90cm tall |
Foliage |
The leaves are arranged alternately along the stem. They have long, closed, leathery sheaths with spreading blades up to about 35cm long and 5mm wide tapering into a point |
Flowers |
The seed heads are compact heads of 2-6 spikelets (units) near the stem tip, chestnut brown in colour |
Fruit |
Nut lenticular with concave faces, broad-obovoid, 3.5-4mm long, 2.5-3mm diameter, straw-coloured to dark golden brown, shining |
Habitat |
Occasional, in swamps or inland along artesian bore drains |
Distinctive Features |
More slender than the other species, usually with leaves erect, with a small clustered inflorescence, and the nut broad and always lenticular, with surface minutely but obviously reticulate under a hand lens |
Similar Species |
Shorter stems than Bolboschoenus medianus and Bolboschoenus fluviatis |
Comments |
Tolerates brackish conditions, useful for upper reaches of estuarine water bodies |
