Caldesia grandis Sam.

Species

Angiosperms > Alismatales > Alismataceae > Caldesia

Characteristics

Rhizomes erect. Petiole 15-55 cm; leaf blade suborbicular, 4.5-7 × 6-8 cm, veins 9-12, base usually subtruncate, apex notched, ribbed. Scapes erect, 30-60 cm high; inflorescences paniculate. Flowers 3-verticillate; pedicels 1.2-2 cm. Sepals persistent, reflexed, elliptic to broadly ovate, 3-4 mm. Petals reflexed, white, spatulate or subobovate, 6-7 mm. Stamens 9-12. Carpels usually 15-17; style ca. 1.5 mm, slender. Fruitlets subobovoid, ca. 2 mm, with 3-5 longitudinal ribs abaxially and an erect beak. Fl. and fr. Jul-Sep. 2n = 22*.
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For the differences with C. parnassifolia see the key. Leaves broader than long, suborbicular, base truncate, apex emarginate, measured along the midrib 11 cm, width 14 cm; nerves 13-17; petiole septate. Sepals 4-5 by 2.5 mm. Stamens 9(-11, cf. SAMUELSSON). Carpels (12-)17(-20); style 2.5 mm; achenes not seen.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 0.6
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Apparently a mountain species, 1000-1500 m. Turions occur between the flowers in the whorls of specimens examined by me.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Caldesia grandis unspecified picture

Distribution

Caldesia grandis world distribution map, present in Bangladesh, China, India, Lao People's Democratic Republic, Malaysia, and Taiwan, Province of China

Conservation status

Caldesia grandis threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:58292-1
WFO ID wfo-0000762631
COL ID PHTH
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Caldesia grandis