Derris tonkinensis Gagnep.

Species

Angiosperms > Fabales > Fabaceae > Derris

Characteristics

Trees or climbing shrubs. Branches brown to red, gla­brous. Leaves 5(or 7)-foliolate; rachis 4-8 cm, including petiole 1.5-6 cm; leaflet blades ovate-lanceolate or broadly ovate to ovate-oblong, 3-10 × 1.5-4 cm, firm in texture, glabrous, base rounded but apical one cuneate, apex shortly acuminate to ob­tuse. Pseudoracemes axillary or terminal, lax or somewhat con­gested, 7-10 × ca. 5 cm, sometimes paniculate with 1 to many 3-4 cm slender branches, thinly reddish pilose; rachis nodes with 4-6 flowers congested and fascicled or lax and borne on 1.5-2 cm branchlets. Pedicel 6-7 mm, appressed reddish pilose. Flowers 1-1.2 cm. Calyx cup-shaped, 2.5-3 mm, appressed reddish pilose; teeth obscure. Corolla whitish to pink; petals all clawed; standard elliptic, 10-12 × ca. 6 mm, reflexed, base abruptly attenuate. Ovary slightly pilose. Legume ellipsoid, 8-11 × ca. 2.5 cm, flat, glabrous, finely veined, both ends obtusely attenuate; abaxial suture with a 1-2 mm wide wing, adaxial suture with a ca. 5 mm wide wing. Seed 1(or 2) per legume. Fl. Mar-Jun, fr. May-Nov.
Life form perennial
Growth form tree
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer rhizobia
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 7-12

Usage

Uses -
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

Derris tonkinensis world distribution map, present in China and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:491449-1
WFO ID wfo-0000197424
COL ID 34YX6
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Derris tonkinensis Derris tonkinensis var. tonkinensis