Knoxia sumatrensis (Retz.) Dc.

Species

Angiosperms > Gentianales > Rubiaceae > Knoxia

Characteristics

Herbs or subshrubs, 20-90(-100) cm tall; roots slender, fibrous; branches terete to weakly quadrate, puberulent or villosulous to densely tomentulose. Leaves opposite, subsessile or petiolate with petiole to 12 mm, puberulent or villosulous to glabrescent; blade papery to membranous, elliptic, lanceolate, or elliptic-oblong, 3-12 × 0.8-3.5 cm, both surfaces hispid-pilosulous to villosulous or sometimes glabrescent adaxially, base acute to cuneate, apex acuminate to cuspidate; secondary veins 6-9 pairs; stipules persistent, shortly fused to petioles, deeply 3-5-lobed, 3-7 mm, villosulous to glabrescent, lobes sometimes setose. Inflorescences congested-cymose to corymbiform, sometimes trichotomous, 1-6 cm, densely strigillose to villosulous, ebracteate; peduncle 0.3-2 cm; pedicels 0.1-1 mm. Calyx puberulent or strigillose to glabrous; ovary portion ellipsoid, 0.5-0.8 mm; limb lobed essentially to base; lobes triangular, 0.1-0.3 mm, equal to subequal on an individual flower. Corolla white or purplish red, funnelform, outside glabrous; tube 1.5-2 mm; lobes triangular, ca. 1 mm. Schizocarps ovoid to ellipsoid, 2-3 mm, weakly 4-8-ribbed, strigillose or puberulent to glabrescent; mericarps coherent at dispersal; carpophore persistent, linear, ca. 2.5 mm. Fl. Jul-Aug, fr. Oct-Nov.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.85 - 1.2
Root system fibrous-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

Uses medicinal
Edible fruits
Therapeutic use Abortifacient agents (rhizome), Vomiting (root), Cough (shoot), Fever (shoot), Urination disorders (shoot), Cancer (unspecified), Dropsy (unspecified), Edema (unspecified), Infection (unspecified), Tympanitis (unspecified), Skin (unspecified), Diuretics (unspecified), Diuretics (whole plant)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Knoxia sumatrensis unspecified picture

Distribution

Knoxia sumatrensis world distribution map, present in Bangladesh, China, Indonesia, Myanmar, Nepal, Philippines, Thailand, Taiwan, Province of China, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:754689-1
WFO ID wfo-0000221148
COL ID 6NLHK
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Knoxia mollis Knoxia stricta Knoxia stricta Spermacoce corymbosa Spermacoce exserta Spermacoce sumatrensis Knoxia corymbosa Knoxia corymbosa Knoxia exserta Knoxia heyneana Knoxia linearis Knoxia sumatrensis Knoxia umbellata Cuncea trifida Dentillaria corymbosa Dentillaria heyneana Dentillaria mollis Ernodea nepalensis Knoxia sumatrensis var. glaberrima Knoxia sumatrensis var. linearis Knoxia mollis var. subcapitata Knoxia corymbosa var. parviflora Knoxia stricta var. parviflora Knoxia teres Knoxia umbellata Knoxia umbellifera Timonius malaccensis Spermacoce teres