Laccosperma opacum (G.Mann & H.Wendl.) Drude

Species

Angiosperms > Arecales > Arecaceae > Laccosperma

Characteristics

Clustering high-climbing palm.. Stem without sheaths to 1.5 cm. in diameter, with to ± 2 cm.; internodes 10–20 cm. long.. Leaf sheath moderately to sparsely armed with black, bulbous-based spines; spines upward pointing or reflexed, upper sheaths near inflorescence occasionally very sparsely armed; black caducous indumentum present on the sheaths between the spines; ocrea 12–30 cm. long, gradually tapering to the tip, papyraceous and tattering, pale straw-coloured without, dark shiny brown within, armed with black spines with pale bulbous bases.. Petiole present on lower leaves, to 12 cm. long by 0.8 cm. wide, much shorter in the reduced leaves subtending the inflorescences, abaxially rounded, adaxially flattened, armed along the edges with up to 1 cm. long, inequidistant, black spines with pale bulbous bases, spreading or reflexed; rachis to 60 cm. long, rounded or angular, armed as the petiole, the spines decreasing in size distally; cirrus to 50 cm. long; leaflets 10–12 on each side of the rachis, inequidistant and unequal in size, usually subequidistant proximally and borne in pairs distally, sigmoid, 1–5-costulate, the largest 20–30 cm. long by 2.5–10 cm. broad at widest point, ± concolorous, with prominent transverse veinlets and numerous, rather distant, small spines on the margins; acanthophylls regularly arranged.. Inflorescence to 30 cm. long; peduncle 10 cm. long, enclosed within the subtending leaf sheath; prophyll ± 4 cm., 2-keeled; lower bracts ± 2 cm. long, gradually decreasing in size distally, with a short triangular acuminate lobe, closely adpressed to the next bract, finely striate; rachillae to 10 cm. long, spreading, densely clothed with striate imbricate bracts ± 4 mm. distant, each with a rather wide mouth and short apiculum to 1 mm.; bracteoles minute.. Flowers ± 8 mm. long by 2 mm. wide just before anthesis; calyx 4 mm. long, tubular in the basal 2 mm., with 3 triangular striate lobes ± 2 mm. long by 2 mm. wide; petals 9 mm. long by 2.5 mm. wide, lanceolate with a blunt triangular tip; stamen-filaments to 3 mm. long by 1 mm. wide, minutely epipetalous and united into a very short basal tube, anthers to 3 mm. long by 1 mm. wide, pollen yellow; ovary ± 1 mm. in diameter, tipped by stigma to 5 mm. long.. Fruit rounded, somewhat depressed apically, ± 1.2 cm. in diameter, tipped by the persistent stigma and with persistent calyx and corolla below, and covered in 12 vertical rows of pale brown scales with slightly paler margins and each with a central furrow.. Seed 8 mm. in diameter, somewhat depressed on one side, covered in polygonal rounded depressions; endosperm homogeneous; embryo lateral.
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A palm that grows in clusters and climbs high. The stems are 1.5 cm across.
Life form perennial
Growth form -
Growth support climber
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 30.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a tropical plant.
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Rainforests.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses food material medicinal
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Laccosperma opacum world distribution map, present in Benin, Central African Republic, Congo, Gabon, Ghana, Guinea, Liberia, and Nigeria

Conservation status

Laccosperma opacum threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:667772-1
WFO ID wfo-0000221741
COL ID 6NRP6
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Neoancistrophyllum opacum Palmijuncus opacus Laccosperma opacum Ancistrophyllum opacum