, sometimes woody vines
with aerial roots
, rarely perennial
, andromonoecious or dioecious, often with stellate
indumentum or more rarely simple
, with or without prickles, secretory
canals present in most parts. Leaves alternate, rarely opposite (never in Chinese taxa), simple and often palmately lobed
, palmately compound
, or 1-3-pinnately compound
, usually crowded toward apices of branches, base
often broad and sheathing
stem, stipules absent or forming a ligule or membranous border
of petiole. Inflorescence terminal
or pseudo-lateral (by delayed development), umbellate
, compound-umbellate, racemose, racemose-umbellate, or racemose-paniculate, ultimate
usually umbels or heads
, occasionally racemes
or spikes, flowers rarely solitary; bracts usually present, often caducous
, rarely foliaceous
. Flowers bisexual
. Pedicels often jointed
below ovary and forming an articulation
. Calyx absent or forming a low rim
, sometimes undulate
or with short teeth. Corolla of (3-) 5(-20) petals, free
or rarely united
, mostly valvate
, sometimes imbricate. Stamens usually as many as and alternate with petals, sometimes numerous
of disk; anthers
, 2-celled (or 4-celled in some non-Chinese taxa), longitudinally dehiscent
. Disk epigynous, often fleshy
, slightly depressed
or conic, sometimes confluent
with styles. Ovary inferior (rarely secondarily superior in some non-Chinese taxa), (1 or) 2-10(to many) -carpellate; carpels united, with as many locules; ovules pendulous, 2 per locule, 1 abortive
; styles as many as carpels, free or partially united, erect
or recurved, or fully united to form a column; stigmas terminal or decurrent on inner face
of styles, or sessile on disk, circular to elliptic
and radiating. Fruit a drupe or berry, terete
or sometimes laterally compressed
, occasionally vertically compressed
fleshy; pyrenes cartilaginous
or membranous, often laterally compressed. Seeds 1 per pyrene, embryo small, endosperm uniform
About 50 genera and 1350 species: widespread in tropical and subtropical regions of both hemispheres, much less diverse in temperate areas; 23 genera (two endemic, one introduced ) and 180 species (82 endemic, seven introduced) in China.
Chinese genera of economic importance include Aralia, Eleutherococcus, Heteropanax, Panax, and Tetrapanax (medicinal), Hedera (ornamental ), Fatsia and Schefflera (medicinal and ornamental), and Kalopanax (timber) .
Recent phylogenetic studies (Plunkett and Lowry, Molec. Phylogen. Evol. 19: 259-276. 2001; Wen et al. , Syst. Bot. 26: 144-167. 2001; Chandler and Plunkett, Bot. J. Linn. Soc. 144: 123-147. 2004; Mitchell and Wen, Taxon 53: 29-41. 2004; Plunkett et al., S. Afr. J. Bot. 70: 371-381. 2004) have shown that Hydrocotyle Linnaeus belongs to Araliaceae, despite being traditionally included in Apiaceae (see Fl. China 14: 14-18. 2005) .
Diplopanax Handel-Mazzetti was at one time placed in Araliaceae but is now regarded as a member of Mastixiaceae (see Fl. China 14: 231-232. 2005) .
Biome: Terrestrial .
Ecology: Montane forest ..
- Whittaker & Margulis,1978
- Haeckel, 1866
- Cavalier-Smith, 1981
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Vascular Plants
- Kenrick & Crane, 1997
- Class: Magnoliopsida () - Brongniart, 1843 - Dicotyledons
- Infraphylum: Radiatopses () - Kenrick & Crane, 1997
- Subphylum: Euphyllophytina ()
- Phylum: Tracheophyta () - Sinnott, 1935 ex Cavalier-Smith, 1998 - Vascular Plants
- Subkingdom: Viridaeplantae () - Cavalier-Smith, 1981
- Kingdom: Plantae () - Haeckel, 1866 - Plants
Members of the genus Megalopanax
ZipcodeZoo has pages for 0 species, subspecies, varieties, forms, and cultivars in this genus:
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- 1997 IUCN red list of threatened plants Cambridge: IUCN, World Conservation Union, 1998 url p. 59.
- Rare and Threatened Plants of Cuba: ex-situ conservation in Botanic gardens IUCN url p. 21.
- The World List of Threatened Trees WCMC, IUCN url p. 347.
- Hoo Gin & Tseng Chang-jiang. 1978. Araliaceae. Fl. Reipubl. Popularis Sin. 54: i-ix, 1-210.
- Areces-Mallea, A.E. 1998. In IUCN 2008. 2008 IUCN Red List of Threatened Species. IUCNRedList.org. Downloaded July 19, 2008.
- Areces-Mallea, A.E. 1998. Megalopanax rex. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloadedon 02February2012.
- IUCN 2012. IUCN Red List of Threatened Species. Version 2011.2. . Downloaded on January 28, 2012.
- Biodiversity Heritage Library NamebankID: 3441606
- IUCN ID: 222227
- Zipcode Zoo Species Identifier: 3963639
- Qibai Xiang & Porter P. Lowry "Araliaceae". in Flora of China Vol. 13 Page 435. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
- Areces-Mallea, A.E. 1998. Megalopanax rex. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 02 February 2012. [back]