Amorphophallus yuloensis H.Li

Species

Angiosperms > Alismatales > Araceae > Amorphophallus

Characteristics

Tuber depressed globose, to ca. 10 cm in diam., without offset development. Petiole uniformly olive-green to pale green, 10-75 × 0.5-2 cm, smooth; leaf blade pale green abaxially, mid green adaxially, 10-100 cm in diam.; rhachises winged distally from basal branchings, central branching point and several more distal nodes becoming intercalary bulbils, producing new plants after detachment; leaflets elliptic to elongate elliptic, 2-25 × 2-10 cm, apex acuminate, veins impressed adaxially. Peduncle dark olive-green with fine, darker, short striations/ spots, ca. 10 cm × 8 mm, glabrous. Spathe erect, outside base pale greenish with small, blackish green dots, center very pale pinkish with similar dots, distally dirty creamish with scattered, grayish black dots, inside base pale pink with numerous white verrucae, distal part dirty cream, concave, broadly ovate, ca. 11 × 10 cm, margins incurved, obtuse; spathe on second day open to base. Spadix subsessile, shorter than spathe, ca. 8.5 cm; female zone cylindric, distal margin very irregular, 1-2 × ca. 1.3 cm, flowers congested or just touching; ovary depressed, orbicular in cross section, 2-2.5 mm high, ca. 4 mm in diam., pale green with very thin, scattered pinkish, short stripes in apical half, 2-loculed, with 1 basal ovule per locule; style ivory-white, short but distinct, ca. 0.8 × 1.1 mm; stigma pale dirty yellow, disciform, rounded in cross section, ca. 1 mm high, ca. 2.5 mm in diam., densely verrucate, with a shallow central depression; male zone slightly fusiform, 2.5-4 × ca. 11.5 cm, flowers mostly separated but distally congested, occasional flowers transformed into conic-pyramidal staminodes; male flower consisting of (2 or)3(or 4) stamens; stamens ca. 2 mm; filaments ivory-white, ca. 0.8 mm, basally connate; anthers dirty ivory-white, truncate, ca. 1 × 2 mm, rectangular in cross section; pores apical, elliptic; staminodes representing one stamen each; appendix ivory-white, broadly conic, massive, 3.2-4 × ca. 1.8 cm, glabrous, base irregular, apex obtuse. Fr. Jun.
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A large herb. It is a root crop. The tuber is about 10 cm across. This produces one leaf on a stalk about 75 cm long. The leaf is about 100 cm across. It is pale green underneath. The leaflets are 2-25 cm long by 2-10 cm wide. The spathe is dark green outside and pink inside with dark green dots.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality monoecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

A tropical plant. In southern China it grows in limestone between 200-2,400 m above sea level. In Yunnan.
More
Dense primary evergreen valley forests on limestone; at elevations from 200-2,400 metres in China.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

The tubers are cooked and eaten. The young leaves are cooked and eaten. Caution: Most plants in this group contain oxalates.
Uses medicinal
Edible leaves roots tubers
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Plants can be grown from seeds or from the bulbils on the leaves.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Amorphophallus yuloensis world distribution map, present in China and Myanmar

Identifiers

LSID urn:lsid:ipni.org:names:935635-1
WFO ID wfo-0000965967
COL ID CXLY
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Amorphophallus yuloensis