Pentaphylax euryoides Gardner & Champ.

Species

Angiosperms > Ericales > Pentaphylacaceae > Pentaphylax

Characteristics

Bush or small tree, 2-9-12 m or medium-sized tree 24-38 m by 30-60 cm (unbranched part 10-17 m). Twigs often dark-coloured. Innovations sometimes slightly puberulous, red (Ridley). Leaves chartaceous to thick-coriaceous, very different in shape, oblong, elliptic, ovate-lanceolate, or lanceolate, sometimes oblique or even falcate, 3-8 by 1-2¾ cm; base cuneate to feebly rounded; apex tapering to distinct-or even long-acuminate, rarely blunt, tip blunt to rounded; nerves c. 6-8 pairs, obliquely ascending and arching, not much more prominent beneath than are the tertiary veins; venation prominent on both sides, but less so in thick leaves; petiole 0.5-1 cm. Pseudo-racemes or-spikes c. 2½-5 cm. Bracts small, roundish to triangular c. 1 mm. Pedicels 0-2 mm. Bracteoles small, oblong to triangular or roundish, sometimes acutish, 1½-2½ by 0.5-2 mm, c. 0.25-0.5 times as long as the calyx. Sepals roundish, 1½-3 by 1¾-2.5 mm. Petals 4.5-5 by 2 mm. Filaments 3-4 by 1.25-1.5 mm. Anthers c. 0.5 mm. Style 1-2 mm. Capsule ellipsoid, rounded at both ends, sometimes slightly apiculate, c. 5-9 by 4-5 mm, at last black, taste astringent. Seeds linear-oblong, with slightly rounded outer margin, cuneate in cross-section, 4½-6½ by 1½-2 mm, rounded at both ends, red-coated.
More
Shrubs or trees, 4-10 m tall. Branchlets grayish brown, terete, glabrous. Petiole 1-1.5 cm, adaxially grooved; leaf blade ovate, oblong-ovate, or oblong-lanceolate, 5-9 × 2-5 cm, leathery, abaxially pale green, adaxially dark green, both surfaces glabrous, secondary veins obscure on both surfaces, base rounded to broadly cuneate, margin entire and slightly revolute, apex caudate. Pedicel ca. 0.5 mm; bracteoles triangular, 1-1.5 mm, outside with white scales, inside sparsely white puberulent, margin ciliolate. Sepals 5, orbicular, 1.5-2.5 mm in diam., outside with dense grayish white scales, inside sparsely white appressed puberulent, margin ciliolate, apex retuse to 2-cleft. Petals oblong-lanceolate to oblanceolate, 4-5 × 1.5-2 mm, glabrous, apex retuse to 2-cleft. Stamens 5; filaments oblong, petaloid, 2.5-3.5 × ca. 1 mm; anthers ca. 0.5 mm in diam., 2-celled, distinct. Ovary ca. 1 × 2.5 mm, glabrous; style columnar, ca. 2 mm, 5-ribbed, apically 5-lobed. Capsule purplish brown to dark brown, ellipsoid, 6-9 × 4-5 mm, valves dehiscing along either side of midrib leaving persistent midrib between valves; columella persistent, 5-edged. Seeds reddish brown, linear-oblong, ca. 9 × 1.5-2 mm, compressed, apex very compressed or winged.
Life form -
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
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Mature width (meter) -
Mature height (meter) 4.0 - 10.0
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Root diameter (meter) 0.1
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Nitrogen fixer -
Photosynthetic pathway c3

Environment

Mountain forests and subalpine scrub-forest, 1200-3000 m, fl. Jan.-Febr., April-July, fr. July-Sept, and (in Gajo Lands) Jan.-Febr. In tall mountain forests this appears a tall tree with thin leaves; on exposed crests it is a gnarled, crooked treelet or bush with thick leaves.
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Hardiness (USDA) 8-12

Usage

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

Cultivation

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Distribution

Pentaphylax euryoides world distribution map, present in China, Congo (Democratic Republic of the), Algeria, Hong Kong, Indonesia, Iceland, Cambodia, Lao People's Democratic Republic, Myanmar, Malaysia, Thailand, and Viet Nam

Conservation status

Pentaphylax euryoides threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:829219-1
WFO ID wfo-0001091505
COL ID 76N7F
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Pentaphylax euryoides Pentaphylax malayana Pentaphylax arborea Pentaphylax racemosa Pentaphylax spicata