Premna odorata Blanco

Fragrant premna (en)

Species

Angiosperms > Lamiales > Lamiaceae > Premna

Characteristics

Tree to 12 m high, sometimes shrub-like; branchlets velvety-pubescent and with sessile glands. Leaves: lamina ovate, 4–12 cm long, 2.5–8 cm wide, rounded or ± truncate at base, entire margin, obtuse to acuminate at apex, velvety pubescent; petiole 0.5–4 cm long. Pedicels c. 0.5 mm long. Calyx ± entire with 2 tiny teeth or obscurely 2-lipped with 1 lip 2-toothed, the other more obscurely 3-toothed. Corolla colour not recorded for Christmas Island, pinkish or greenish white elsewhere; tube 2 mm long, sometimes pubescent, constricted at point of insertion of stamens; lobes c. 1 mm long, glabrous inside, sometimes pubescent outside. Stamens: filaments c. 1.5 mm long; anther locules divergent at base. Ovary glabrous. Fruit not seen. See also Cooper & Cooper (2004: 239), Zich et al. (2020).
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A small tree. It grows 12 m high. The leaves are simple and 5-20 cm long by 4-13 cm wide. There are velvety hairs especially underneath. The leaf stalks are 1-8 cm long. The flowers are in a group at the end of the branches. There are 4-5 petals. They are green, white, cream or pink. They are 3-6 mm long. The fruit is fleshy and is purple or black. They are 3-6 mm long and 3-5 mm wide. There are 1-4 seeds. They are green or brown. They are 5 mm long.
Trees, small. Branchlets pubescent. Petioles 3-7 cm; leaf blade oblong to ovate, 10-12(-20) X 6-7 cm, base rounded to somewhat cordate, abaxially uniformly densely softly pubescent, margin entire or crenulate, apex acute, veins 6 pairs. Inflorescences 8-20 cm wide. CalyX 2-lipped, 5-lobed. Corolla greenish white to nearly white, 4-5 mm. Fruit dark purple, globose, ca. 4 mm in diam.
Life form perennial
Growth form tree
Growth support climber free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 12.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Common in thickets and secondary forest at low elevations. Thickets and forests near the seashore in Taiwan. In or on the margins of gallery forest at elevations up to 400 metres.
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A tropical plant. It grows in forests near seashores.
Grows on sea-cliffs.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

Uses material medicinal poison
Edible fruits leaves
Therapeutic use Repellant(Insect) (unspecified)
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 -

Images

Leaf

Premna odorata leaf picture by Noel Dionson (cc-by-sa)

Flower

Premna odorata flower picture by Noel Dionson (cc-by-sa)
Premna odorata flower picture by Noel Dionson (cc-by-sa)

Distribution

Premna odorata world distribution map, present in Australia, Bangladesh, China, Indonesia, Lao People's Democratic Republic, Moldova (Republic of), Myanmar, Philippines, Thailand, Taiwan, Province of China, United States of America, and Viet Nam

Conservation status

Premna odorata threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:151206-3
WFO ID wfo-0000282759
COL ID 77WTY
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Premna goeringii Premna hamiltonii Premna odorata Premna vestita Premna curranii Premna inaequilateralis Premna leucostoma Premna maclurei Premna peekelii Premna rufidula Premna ruttenii Gumira flavescens Gumira leucostoma Gumira odorata Gumira vestita Premna latifolia var. major Premna odorata var. detergibilis Premna tomentosa var. detergibilis Premna tomentosa var. pierreana Premna odorata var. pierreana Premna cumingiana var. pierreana