Indigofera szechuensis Craib

Species

Angiosperms > Fabales > Fabaceae > Indigofera

Characteristics

Shrubs, 0.8-2.5 m tall. Stems rufous to blackish brown, terete, with sparse scattered yellow lenticels; young branches angular, with dense appressed mixed white and brown medi­fixed symmetrically 2-branched trichomes, glabrescent. Stip­ules lanceolate, 2.5-4 mm, stiff. Leaves 4-10 cm, (5 or)7-13-foliolate; petiole and rachis adaxially flat, with appressed white medifixed trichomes; petiole 0.5-1.5(-2.5) cm; stipels ca. 0.5 mm; petiolules ca. 1 mm; leaflet blades opposite, elliptic, obo­vate, oblong, or obovate-oblong, 5-20(-30) × 4-9(-10) mm, papery, both surfaces with dense appressed white medifixed tri­chomes, abaxially pale green, adaxially green, midvein adaxi­ally flat or slightly depressed, secondary veins not visible on both surfaces, base rounded to cuneate, apex rounded, truncate, or acute and mucronate. Racemes 10-19 cm; peduncle 0.8-5 cm, hairy; bracts ovate to linear-lanceolate, 1.5-3 mm, cadu­cous, with appressed medifixed trichomes. Pedicel 1.5-2 mm, hairy. Calyx 2-3.5 mm, with appressed brown medifixed tri­chomes; tube 1-1.5 mm; teeth triangular, 1-2 mm. Corolla crimson-red; standard broadly ovate-elliptic to obovate-elliptic, 7.5-9.5 × 5-6.5 mm, outside with appressed medifixed tri­chomes; wings 7.5-9.5 × ca. 2.5 mm, base clawed, margin cili­ate; keel 7.5-9.5 mm, outside apically hairy, margin ciliate. Sta­mens 7.5-8.5 mm; anthers ovoid-globose, glabrous. Ovary hairy, with 8-10 ovules. Legume linear, cylindric, spreading or drooping, 3.5-4 cm, with sparse appressed medifixed trichomes when young, glabrescent. Seeds 8 or 9 per legume, 2.5-3 × ca. 2 mm. Fl. May-Jun, fr. Jul-Oct.
Life form perennial
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 1.5 - 2.5
Mature height (meter) 2.0 - 3.25
Root system -
Rooting depth (meter) 0.2
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 7-9
Soil humidity -
Soil texture -
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 8-10

Usage

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

Cultivation

Can be grown by cuttings or seedlings. Seeds needs soaking.
Mode cuttings seedlings
Germination duration (days) 30 - 90
Germination temperacture (C°) 10
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Indigofera szechuensis world distribution map, present in China and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:500070-1
WFO ID wfo-0000197560
COL ID 3PMPZ
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Indigofera szechuensis Indigofera potaninii Indigofera vanioti Indigofera vanioti