Arisaema handelii Stapf ex Hand.-mazz.

Species

Angiosperms > Alismatales > Araceae > Arisaema

Characteristics

Plants dioecious. Tuber depressed globose, 2-4.5 cm in diam., with many fimbriate roots. Cataphylls 1 or 2, whitish green, flushed purplish, 17-36 × 1-1.5 cm, membranous, apex acute, sometimes obtuse. Leaf solitary; petiole dark green, unmarked, 17-55 cm, smooth, base forming pseudostem; leaf blade 3-foliolate; leaflets pale green abaxially, green adaxially, margin crisped or shallowly crenulate, petiolulate; central leaflet with petiolule 1-3 cm, blade obovate to obcordate, ca. 16 × 20 cm, apex depressed or concave with a short mucro; lateral leaflets with petiolule winged and 1-2 cm, blade broadly rhombic or obliquely ovate, 19-26 × 15-20 cm, base obliquely rounded or truncate, decurrent to petiolule, apex abruptly acuminate or acute, sometimes with filiform tail ca. 1.5 cm. Peduncle whitish green to dark green, unmarked, much shorter than petioles, emerging from pseudostem, 15-20 cm, smooth. Spathe green, purple, or dark green with broad white stripes; tube funnelform, 5-6 cm, ca. 2 cm in diam. at base, ca. 4 cm in diam. at throat, not auriculate; limb slightly incurved or suberect, oblong, ca. 15 × 4-6 cm, apex acuminate, sometimes with a filiform tail 2-3 cm. Spadix unisexual; female zone 3-4.5 cm; ovaries dense; stigma subsessile; male zone cylindric, 3.4-4 × 1-1.5 cm; synandria with stipe 2-3 mm; anthers usually 4, globose, each dehiscing by horseshoe-shaped slit. Appendix whitish, narrowly conic, basal 4-6 cm densely papillose or rugose, ca. 1.5 cm in diam., abruptly narrowed at base into stipe ca. 6 × 5 mm, distal part smooth and gradually drawn into flagellum to 38 cm in total, exserted from spathe tube and tortuous, pendulous in distal flagellate part. Fl. May-Jun.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality dioecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
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

Light -
Soil humidity -
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Soil acidity -
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Hardiness (USDA) -

Usage

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

Cultivation

Mode -
Germination duration (days) 30 - 180
Germination temperacture (C°) 12 - 15
Germination luminosity -
Germination treatment -
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Optimum temperature (C°) -
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Vigor -
Productivity -

Distribution

Arisaema handelii world distribution map, present in China and Myanmar

Identifiers

LSID urn:lsid:ipni.org:names:85660-1
WFO ID wfo-0000271097
COL ID GN63
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Arisaema handelii Arisaema elephas var. handelii