Asystasia gangetica subsp. micrantha (Nees) Ensermu

Subspecies

Angiosperms > Lamiales > Acanthaceae > Asystasia > Asystasia gangetica

Characteristics

Herb 100-300 mm, usually procumbent strand plant. Stems glabrous, angular when young, rounded with age. Leaves petiolate, glabrous, succulent, amphistomatic; petiole 2-4 mm long; blade widely ovate to rounded-emarginate, 20-30 x 17-22 mm, venation pinnately reticulate, lateral veins 4-5 pairs, margins entire. Inflorescence terminal, rarely branched, up to 100 mm, usually bearing 5-9 flowers (up to as many as 17) singly in decussate arrangement, 7-14 mm apart; bracts solitary, minute; bracteoles paired. Flowers zygomorphic, pedicellate; pedicels 3-5 mm long. Calyx persistent, pentamerous divided to base; teeth triangular, 8 x 2 mm, clothed outside in glandular and eglandular trichomes, strigose inside. Corolla pentamerous, infundibuliform; tube 10 x 16 mm, dilated in the upper 2/3, ventrally corrugated and sculptured, glandular without, strigose in basal 1/3 within, throat glabrous; lobes rounded, papillate; lateral lobes 4 x 3 mm; median lower lobe 5x3 mm, with palate and tessellated nectar guides. Stamens 4, epipetalous, didynamous; filaments glabrous, 4-6 mm long; anthers bithecous, mucro-nate, slightly oblique, 1.5-2 mm long, with basal glandular hairs. Pollen perprolate, 33 x 15 µm tricolporate with annular lips surrounding the pore; pseudocolpi 2, margocolpi 2, poles sometimes apocolpate. Ovary oblong, 3-4 x 2 mm, densely pubescent except along sutures; style pubescent basally, 7-8 mm long, filiform and arcuate; stigma shortly bifid with rounded lobes; nectariferous disc cupular, 1 mm deep, shallowly lobed. Fruit bilocular, loculicidal capsule, 25 x 6 mm; stipe 13 mm, apex rostellate. Seeds reniform, laterally flattened, 4-5 mm in diam., 1.2 mm thick, reticulate and tuberculate; tubercles spheroidal to elongate mounds; jaculators spathulate, 5-6 mm long.
More
A herb. It grows 20-30 cm tall. The stems can be erect or straggling. They are 4 sided in cross section. The nodes are 10-15 cm apart. The leaves are opposite and triangle shaped. They are 3-7 cm long by 3-4 cm wide. The flowers are tube shaped and 1.5 cm long. They have purple marks. The flowers are on one side of the 10 cm long flower stalk. The fruit is a dry capsule.
Corolla 1.2-1.5 cm, ca. 0.5 cm wide at mouth, middle lobe of lower lip slightly reflexed.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 0.2 - 0.3
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a tropical plant.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 10-11

Usage

Uses medicinal
Edible leaves
Therapeutic use Cough (unspecified), Sore(Throat) (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Plants are grown by seeds. It can be grown by layering or cuttings.
Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) 23 - 28
Size -
Vigor -
Productivity -

Images

Asystasia gangetica subsp. micrantha unspecified picture

Distribution

Asystasia gangetica subsp. micrantha world distribution map, present in Angola, Benin, Burkina Faso, Botswana, Central African Republic, China, Côte d'Ivoire, Cameroon, Congo, Comoros, Ethiopia, Gabon, Ghana, Guinea, Gambia, Guinea-Bissau, Equatorial Guinea, Kenya, Liberia, Madagascar, Mali, Mozambique, Mauritius, Mayotte, Namibia, Nigeria, Oman, Papua New Guinea, Réunion, Saudi Arabia, Sudan, Senegal, Singapore, Sierra Leone, Somalia, South Sudan, Sao Tome and Principe, eSwatini, Seychelles, Chad, Togo, Tanzania, United Republic of, Uganda, Yemen, South Africa, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:979332-1
WFO ID wfo-0000555199
COL ID 7JCF9
BDTFX ID -
INPN ID 656489
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Ramusia nyctaginea Asystasia capensis Asystasia scabrida Ruellia intrusa Asystasia comorensis Asystasia floribunda Asystasia intrusa Asystasia multiflora Asystasia parvula Asystasia pinguifolia Asystasia podostachys Asystasia pubescens Asystasia subhastata Asystasia micrantha Asystasia ansellioides var. lanceolata Asystasia coromandeliana var. micrantha Asystasia gangetica subsp. micrantha