Helicia oreadum Diels

Species

Angiosperms > Proteales > Proteaceae > Helicia

Characteristics

Small tree 3-6 m; tips of the branchlets fuscous-pilose, early glabrescent. Leaves lanceolate or narrow obovate-oblong, rather shortly and gradually acuminate at the apex, subacute, ± broadly attenuate into the petiole, somewhat inequilateral, subcoriaceous, pale green when dry, shining on both faces, glabrous above, initially laxly, appressedly, ferrugineous-pilose on the intervenium beneath, more densely so on the midrib, nerves and petiole, finally nearly completely glabrous, entire, (10-)12-22(-29) by 4-7(-9) cm; midrib robust, prominent on both faces; nerves 9-11 pairs, moderately curved and ± parallel, arching in a mostly very distinct intramarginal vein, +-distinctly impressed above when dry, prominent beneath, reticulations dense and conspicuously raised on both faces; petiole 1.5-2(-2.5) cm, at the base 1.5-2 mm thick. Racemes axillary or ramiflorous, 18-28 cm, incl. the short peduncle, rather dense-flowered, fuscous-tomentose; rhachis c. 1.5 mm diam. Bracts ovate-lanceolate, subpersistent, mostly equalling the pedicels. Pedicels 1.5-2 mm, mostly in twos, free or connate halfway up. Perianth rose-red or purplish, slender, c. 18 mm, tube 0.6 mm diam., limb ellipsoid, 1.5 mm diam. Disk glands fleshy, free, divergent. Ovary rufous-tomentose; style slender, glabrous. Fruit not seen.
Life form -
Growth form tree
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 3.0 - 6.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

In rain-forest, up to 1500 m. FL Apr.-May, Aug.-Sept.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses environmental use material medicinal social use
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Helicia oreadum world distribution map, present in Botswana, Malaysia, and Papua New Guinea

Identifiers

LSID urn:lsid:ipni.org:names:704465-1
WFO ID wfo-0000717977
COL ID 3K7JS
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Helicia oreadum