Grasses, Sedges & Bamboos

Grasses, Sedges & Bamboos (22)

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Bamboos (22)

Bamboo requires excess sunlight, they are clump forming and are more suitable for cultivation and grows very well in tropical and sub-tropical climatic condition.

Conventionally bamboo plantation in wider spacing of 4-5 m between plants results in 160-200 plants in one acre. This spacing is suitable for most of larger diameter bamboo such as Dendrocalamus giganteus, Dendrocalamus asper, Dendrocalamus hamiltonii, Dendrocalamus brandisii and also medium sized bamboo such as Bambusa balcooa, Bambusa nutans, Bambusa vulgaries, Bambusa tulda, Bambusa cacharensis, Bambusa bambus, Dendrocalamus strictus, Bambusa polymorpha.

Bamboo reaches maturity after 4-5 years under well managed plantation condition. Culms are marked for ages by different colour codes and selective culms are harvested after 4 years of culm growth. The cultivation practises, nutrition requirement, spacing between bamboo plants varies for each site.

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Oxytenanthera monadelpha

Culms, tufted. Leaves to 20 x 3 cm, ovate, lanceolate, long acute at apex, margins, minutely serrate. Panicles of spicate branches; spikelets in clusters, forming pseudo-panicles, to 1.5 cm long, with 1 fertile and 2 dormant florets, lower glume 5 mm, obovate-triangular, mucronate, ciliate along the margins and upper part; upper glume 9 mm, oblong-triangular, lemma 12 mm, ovate-elongate, mucronate; palea little smaller; stamens 6, filaments united.

Oxytenanthera bourdillonii

Culms 3-8 m high, smooth; culm sheath blade to 15 cm long, glabrous. Leaves 15-35 x 2-5 cm, sessile, base acute, glabrous; margin entire; sheath keeled, glabrous. Spikelets 2.5 cm long, glabrous; lower glume acute; upper glume 10-11 x 6-7 mm, glabrous; florets 3-5, all bisexual; lemmas 20 x 6 mm, glabrous; palea 10-13 x 4 mm, hairy along the keels; staminal tube short; anthers 6-7 mm long, apiculate.

Ochlandra wightii 

Erect shrubby bamboo; culms 6-7.5 m tall, 1.5-2 cm diameter, nodes prominent with grayish bands on both sides, average internode length 50 cm; culm-sheath 8-15 cm long excluding the blade, 5 cm broad, covered with appressed, light brown subulate hairs; blade 6 cm long, 1-1.5 cm broad, lanceolate, acuminate. Leaves 18-36 x 3.5-7.5 cm, oblong-lanceolate, acuminate, attenuate at the base, glabrous on both surfaces, whitish beneath, margins cartilaginous, smooth, mid-vein prominent; secondary veins 10-14 pairs; sheath striate ending in a smooth rounded callus with two short auricles and a few stiff deciduous bristles; ligules very long. Inflorescence terminal spikes, rachis thick. Spikelets several in the verticels in the axils of bracts, glabrous, 2.3-2.8 x 0.4-0.6 cm, conical steriate; sterile glumes 4, basal, 0.6-2 cm long in flowers, 09-1.5 cm in fruits, outer two thicker and ovate-truncate with a subulate point; the inner two ovate-acute, mucronate; fertile glumes thin, membranous, 1.8 cm long in flowers, 2.5-3 cm long in fruits, many veined; palea 1.8 cm long in flowers, 3.5 cm long in fruits, narrow. Lodicule 1, 1.3 cm long, many nerved, serrate at apex. Stamens up to 60; filaments narrow, long, apiculate. Ovary glabrous, perigynium thickened and enclosing the style; stigmas 5, plumose. Caryopsis 5.5 x 1.8 cm, fleshy.

Ochlandra travancorica, also called as elephant grass is a species of bamboo, endemic to the Western Ghats, India. It is naturalised in the West Indies.

Ochlandra travancorica var. hirsuta

Ochlandra travancorica, also called as elephant grass is a species of bamboo, endemic to the Western Ghats, India. It is naturalised in the West Indies.

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Bamboos and Rattans