Mitragyna rotundifolia Kuntze

Species

Angiosperms > Gentianales > Rubiaceae > Mitragyna

Characteristics

Trees, perhaps deciduous, to 30 m tall; branches angled to subterete, glabrous to glabrescent. Petiole 15-60 mm, glabrous to densely pilosulous; leaf blade drying papery, suborbicular to broadly elliptic or ovate, 9-25 × 6-20 cm (to 75 cm on seedlings and sprouts), adaxially glabrous to puberulent, abaxially sparsely to densely pilosulous or tomentulose, base rounded to cordate, apex rounded to obtuse; secondary veins 5-7 pairs, spreading, sometimes with pilosulous domatia in abaxial axils; stipules elliptic-oblong to ovate, 13-50 × 5-30 mm, pilosulous, keeled, apex obtuse to rounded. Inflorescences densely puberulent to pilosulous; peduncles 1-3 mm (i.e., portion above articulation of subtending leaves but not including internode below node bearing inflorescence); flowering heads 1-5, 7-10 mm in diam. across calyces, 15-20 mm in diam. across corollas; bracteoles linear-spatulate, 1-1.5 mm, glabrous or sparsely pubescent. Calyx glabrous; ovary portion 1.5-3 mm; limb ca. 0.5 mm, subtruncate to lobed for ca. 1/2; lobes triangular, obtuse. Corolla yellowish white, outside glabrous, densely hairy inside; tube 2-3 mm; lobes narrowly oblanceolate, 4-5 mm, acute. Fruiting heads 10-16 mm in diam. Capsules 3-5 mm, weakly ridged, with persistent calyx thickened; seeds ca. 1 mm. Fl. [Aug-Nov], fr. Sep, Dec.
Life form -
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 30.0
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Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

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Hardiness (USDA) 8-12

Usage

Uses construction material medicinal
Edible -
Therapeutic use Hypertension (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

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Images

Mitragyna rotundifolia unspecified picture

Distribution

Mitragyna rotundifolia world distribution map, present in Andorra, Bangladesh, China, Lao People's Democratic Republic, Myanmar, Thailand, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:756301-1
WFO ID wfo-0000244941
COL ID 43QMB
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Mitragyna rotundifolia Nauclea brunonis Nauclea rotundifolia Mitragyna brunonis Bancalus rotundifolius