Crotalaria mairei H.Lev.

Species

Angiosperms > Fabales > Fabaceae > Crotalaria

Characteristics

Herbs, perennial, ascending to erect, 10-60 cm tall. Stems many from base, terete, densely silky pilose. Stipules acicular, 1-2 mm, persistent or caducous. Leaves simple; petiole 1-4 mm; leaf blade lanceolate, oblong-lanceolate, or rarely oblan­ceolate, 1.5-3 × 0.5-1.5 cm, abaxially densely brown pilose, adaxially glabrous or very sparsely pilose, base cuneate, apex shortly acuminate to rounded and cuspidate. Racemes terminal, headlike, less than 5 cm, 10-20-flowered; bracts linear to line­ar-lanceolate, 4-8 mm. Pedicel ca. 2 mm or ca. 5 mm when flowers arranged laxly on branch tip and not headlike; bracte­oles inserted at base of calyx, similar to bracts. Calyx 2-lipped, 1-1.3 cm, deeply divided, densely brown pilose or pubescent; lobe apices long acuminate; abaxial lobes lanceolate; adaxial lobes oblong-ovate, ca. 3 mm wide. Corolla deep purple or pur­plish blue, ± as long as calyx; standard ovate to suborbicular, 0.8-1.3 cm, abaxially pilose near tip, base with 2 appendages, apex obtuse to retuse; wings oblong, 0.8-1.3 cm; keel ovate, ± sharply angled near base, margins proximally woolly, apex ex­tended into a long straight twisted beak. Ovary subsessile. Leg­ume cylindric, ca. 1 cm, included in or slightly exserted beyond calyx, 10-15-seeded, glabrous. Fl. Sep-Nov, fr. Dec-Feb.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 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) 6-11

Usage

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

Cultivation

Mode -
Germination duration (days) 21 - 30
Germination temperacture (C°) 18 - 23
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Crotalaria mairei world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:950667-1
WFO ID wfo-0000198695
COL ID ZNS2
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Crotalaria mairei Crotalaria mairei var. pubescens