Indigofera squalida Prain

Species

Angiosperms > Fabales > Fabaceae > Indigofera

Characteristics

Herbs, perennial, erect, to 60 cm tall. Roots tuberous. Stems striate, with appressed white medifixed symmetrically 2-branched trichomes. Stipules narrowly triangular, ca. 2 mm. Leaves simple; petiole 3-4 mm; leaf blade narrowly elliptic to obovate, 2.5-5.5(-7) × 0.7-2.5 cm, both surfaces with ap­pressed medifixed trichomes, abaxially with sparse deciduous disk-shaped glands, secondary veins 10 or 11 on each side of midvein, base cuneate, apex acute and with a ca. 0.5 mm mucro. Racemes 1-2(-3) cm, very densely flowered; bracts narrowly triangular, 2-2.5 × ca. 0.5 mm. Peduncles, pedicels, bracts, and calyces all with very dense appressed medifixed tri­chomes. Pedicel 1-1.5 mm. Calyx tube ca. 1 mm; teeth nar­rowly triangular, 1-1.5 × ca. 0.5 mm. Corolla red; standard elliptic, 4-5 × 2.5-3 mm, outside with very dense appressed medifixed trichomes; wings 3.5-4 × ca. 1 mm, glabrous; keel 4-4.5 × ca. 2 mm, outside surface with very dense appressed trichomes. Stamens 3-4 mm; anthers glabrous. Ovary hairy, with 5 or 6 ovules. Legume cylindric, descending, straight, 1.1-1.4 cm × 1.5-2 mm, with dense appressed medifixed trichomes; style usually persistent and then glands still visible; endocarp not blotched. Seeds 3-5 per legume, yellowish brown, ovoid, ca. 1.2 × 1 mm. Fl. Jun-Sep, fr. Sep-Nov.
Life form perennial
Growth form
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.6
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) 8-12

Usage

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

Cultivation

Mode -
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 squalida world distribution map, present in Australia, China, Cambodia, Lao People's Democratic Republic, Myanmar, Thailand, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:500035-1
WFO ID wfo-0000197591
COL ID 6MVWL
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Indigofera squalida Indigofera changensis Indigofera oenotheroides Corchorus onotheroides Indigofera polygaloides