Clarkella nana (Edgew.) Hook.F.

Species

Angiosperms > Gentianales > Rubiaceae > Clarkella

Characteristics

Low herbs, to 10 cm tall; tubers ellipsoid-oblong, 1-1.5 cm, scaly; stems unbranched, subterete, glabrous to densely villosulous. Leaves opposite or sometimes only 1 leaf developing at basalmost node; petiole 0.5-5 cm, glabrous to puberulent; blade drying membranous or thinly papery, ovate to broadly ovate, 1-6 × 1-4 cm, both surfaces glabrous to puberulent or villosulous, base obtuse to cordulate and sometimes oblique, apex acute to rounded; secondary veins 4-8 pairs; stipules triangular to narrowly triangular, 0.2-0.5 mm. Inflorescence 0.8-3 cm, 3-25-flowered, villosulous to puberulent; bracts ovate to narrowly oblong, 0.5-12 mm; pedicels 1-3.5 mm. Calyx densely puberulent to villosulous; hypanthium portion 1-2 mm; lobes triangular to ovate, 1-3 mm, markedly unequal on an individual flower. Corolla outside villosulous to puberulent; tube 10-14 mm; lobes elliptic to suborbicular, ca. 3 mm, ciliolate. Fruit 7-8 mm, villosulous, with calyx limb becoming 2-4.5 mm with increase in size principally in growth of basal, unlobed portion. Fl. and fr. Aug.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1
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Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
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Hardiness (USDA) 9-12

Usage

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

Cultivation

Mode -
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Distribution

Clarkella nana world distribution map, present in China, Myanmar, and Thailand

Identifiers

LSID urn:lsid:ipni.org:names:746931-1
WFO ID wfo-0000871829
COL ID VRKC
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Ophiorrhiza nana Ophiorrhiza pellucida Clarkella siamensis Clarkella sianensis Clarkella nana var. siamensis Clarkella nana