Home Flora of Pakistan
There will be an outage between 5:00 PM to 7:00 PM Central Time Wednesday, April 16 for server maintenance. Sorry for the inconvenience.
Home
Name Search
Families
Genera
Species
District Map
Grid Map
Inventory Project
!Aerva Forssk. Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in Index Nominum Genericorum (ING)Search in NYBG Virtual HerbariumSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical Garden Decrease font Increase font Restore font
 

Published In: Flora Aegyptiaco-Arabica 170. 1775. (Fl. Aegypt.-Arab.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

 

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
General/Distribution: About 10 species in the tropics, mostly in continental Africa, Madagascar and smaller islands (Rodriguez, Mauritius, Socotra).
Type: Type species: Aerva javanica (Burm. f.) Juss. ex J.A. Schultes.

 

Export To PDF Export To Word
Perennial herbs (sometimes flowering in the first year), prostrate to erect or scandent. Leaves and branches alternate or occasionally opposite, leaves entire. Flowers hermaphrodite or dioecious, sometimes polygamous, bibracteolate, in axillary and terminal sessile or pedunculate bracteate spikes or panicles, one flower in the axil of each bract. Perianth segments 5, oval- or lanceolate-oblong, membranous-margined with a thin to wider green centre, the perianth deciduous with the fruit but bracts and bracteoles persistent. Stamens 5, shortly monadelphous at the base, alternating with subulate or rarely narrowly oblong and truncate or emarginate pseudostaminodes. Ovary with a single pendulous ovule; style very short to slender and distinct; stigmas 2, short to long and filiform (sometimes solitary and capitate, flowers then probably functionally male). Utricle thin-walled, bursting irregularly. Seed compressed-reniform, firm, black.
 

Export To PDF Export To Word Export To SDD
Switch to indented key format
1 Outer tepals with the midrib excurrent in a distinct mucro; flowers hermaphrodite or female and hermap- hrodite (2)
+ Outer tepals with the midrib ceasing well below the apex; flowers dioecious, either with a well developed style and stigmas but no anthers or anthers present but only rudimentary stigmas Aerva javanica
2 (1) Outer tepals gradually narrowed to the mucro above, length without the mucro 1.57-2.25 mm; upper spikes of the stem and long, ascending branches frequently without subtending leaves, racemose, the whole inflorescence thus appearing paniculate Aerva sanguinolenta
+ Outer tepals abruptly narrowed to a short mucro at the tip, length without the mucro 0.75-1.25 mm; pikes axillary, usually clustered, forming a long, leafy inflorescence along the stem and branches Aerva lanata
 
 
© 2014 Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110