Indigofera howellii Craib & W.W.Sm.

Species

Angiosperms > Fabales > Fabaceae > Indigofera

Characteristics

Shrubs, to 3 m tall. Stems brown, terete, with yellowish lenticels, with appressed medifixed symmetrically 2-branched trichomes. Stipules narrowly lanceolate, 2-3 mm, with ap­pressed brown trichomes. Leaves 9-11 cm, (7 or)9-17(-23)-foliolate; petiole and rachis with sparse appressed white and some brown medifixed trichomes; petiole (0.5-)1-3(-4) cm; rachis terete, adaxially narrowly grooved; stipels minute; petio­lules ca. 1 mm, with appressed medifixed trichomes; leaflet blades opposite, elliptic, 0.8-3(-3.5) × 0.3-1.5(-2) cm, thinly papery, both surfaces with appressed white medifixed tri­chomes, midvein abaxially prominent and adaxially impressed, secondary veins 4 or 5 on each side of midvein and adaxially obvious, base broadly cuneate, apex rounded to truncate and with a ca. 1 mm mucro. Racemes 10-20 cm, densely flowered; peduncle and rachis hairy; peduncle 1-2 cm; bracts ovate to ovate-lanceolate, 2-3 mm, caducous, abaxially with brown trichomes. Pedicel 2-3 mm. Calyx cup-shaped, (2-)3-4 mm, outside hairy; tube ca. 2 mm; teeth triangular to lanceolate, ca. 1-2 × as long as tube. Corolla purple; standard obovate to obo­vate-elliptic, 8-10.5 × 5-6 mm, outside with dense appressed white trichomes, base shortly clawed, apex obtuse; wings 8-10 × ca. 2.5 mm; keel 8-10.5 mm, outside apically hairy. Sta­mens (6.5-)7-8 mm; anthers ovoid, base with a few tri­chomes. Ovary glabrous. Fl. May-Sep, fr. unknown.
Life form perennial
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 2.5 - 4.0
Mature height (meter) 2.75 - 3.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway c3

Environment

Light 7-9
Soil humidity -
Soil texture -
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 8-11

Usage

Uses dye environmental use
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 howellii world distribution map, present in China and Myanmar

Identifiers

LSID urn:lsid:ipni.org:names:499474-1
WFO ID wfo-0000197487
COL ID 3PM7K
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Indigofera emarginata Indigofera howellii Indigofera marginata Indigofera deqinensis