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Guadua angustifolia
Bambusaceae

Catégories


Description

From Bamboos of Thailand, Native and Introduced Species (Poaceae: Bambusoideae) — An Annotated Compilation, by D. Ohrnberger (Khun Dieter – คุณดีเท่อร์)

"Habit: Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 2000-3000 cm long; 100-130 mm diam.; woody; with root thorns from the nodes. Culm-internodes terete; thin-walled; 20 cm long. Lateral branches dendroid. Branch complement three; with 1 branch dominant; thinner than stem. Culm-sheaths pubescent; hairy throughout; with dark brown hairs; without auricles. Culm-sheath blade triangular; erect; pubescent. Leaf-sheath oral hairs lacking. Ligule a ciliolate membrane. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath; petiole glabrous. Leaf-blades lanceolate, or oblong; 10-20 cm long; 6-12 mm wide. Leaf-blade venation without cross veins. … [flowers and seeds described]." — KewScience POWO, accessed 10 July 2020 [#1305].

Characteristics: Rhizomes pachymorph, long-necked, forming loosely spaced culms. Culms erect, upright. Culm-internodes green, thin-walled. Culm-nodes with thorns, with a prominent sheath scar ring and initially with a dense band of appressed, cream-colored hairs below and above the sheath scar. Branches initially 1–3, the central one dominant, several on the upper culm. Culm-leaves deciduous, late deciduous on the lower culm. Culm-leaf sheaths with dark brown hairs. Culm-leaf auricles absent. Culm-leaf blade erect. Foliage-leaf blades medium-sized, 10–21 cm long, 0.5–2.4 cm wide.

Synonym: Bambusa guadua Bonpl. in Humboldt & Bonpl., Pl. Aequinoct. 1, 1806: 68, pl. 20.

Origine

THAILAND, introduced, in cultivation. — VENEZUELA to PERU, native and wild, also widely cultivated in central and southern America. — Also cultivated in several countries of South-East Asia, e.g., Vietnam and Indonesia.

 

Utilisations

It is the economically most important bamboo in the humid, tropical Americas; the primary source of building material for urban and rural dwellings, especially in Colombia and Ecuador, and the raw material for numerous products.

Culture

Easy and fast-growing; in full sun, sandy loam to clay loam, normal moisture-retentive to moist with good drainage, mildly acid 5.5–6.5 pH soils. Temperature: Guadua angustifolia grows best at average temperatures between 17 °C and 26 °C, does not tolerate minimum temperatures below 12 °C, and is slow-growing below 16 °C, but other Guadua species may survive temperatures as low as freezing point (0 °C). Precipitation: best between 1,300 and 2,500 mm per year. Atmospheric humidity: best at (72) 80–90%. For timber production, a less hot location within the species' temperature range is recommended, lowland plantations in the wet tropics might not produce the strongest possible culms.

Références

Bibliography of Bamboos of Thailand


Noms courants

  • thaï
    • ไผ่กวัดัว (phai kwadwa)
  • anglais
    • Guadua Bamboo
    • Colombian Giant Bamboo

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