Home Flora of Missouri
Name Search
!Echinodorus Rich. 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 GardenSearch in Flora do Brasil 2020Search in Reflora - Virtual HerbariumSearch in Living Collections Decrease font Increase font Restore font

Publicado en: Mémoires du Muséum d'Histoire Naturelle 1: 365. 1815. (Mém. Mus. Hist. Nat.) Name publication detailView in Biodiversity Heritage Library

Datos del Proyecto Nombre (Last Modified On 8/26/2009)
Aceptación : Accepted

Export To PDF Export To Word

2. Echinodorus Rich. ex Engelm. (burhead)

(Fassett, 1955; Rataj, 1975)

Plants annual or perennial, sometimes with rhizomes. Leaf blades linear to broadly ovate-cordate, sometimes reduced or absent in submerged plants. Venation usually with palmate main veins arching from the base of the midrib and rejoining near the apex, these connected by finer, angled veins running parallel to one another. Inflorescences erect or prostrate racemes with whorled flowers, sometimes with a few branches basally, or reduced to umbels. Whorls of flowers with few to several small bracteoles in addition to the 3 larger bracts subtending the flowers. Flowers perfect. Sepals ovate, persistent. Stamens 6 to many, the filaments longer than the anthers, the anthers basifixed or attached to the top of the filaments near the middle of the anther (versatile). Pistils 10 to many, in several series, forming a dense, headlike cluster on the expanded receptacle. Styles attached to ovaries obliquely. Fruits plump, with several ribs or ridges. Forty-seven species, nearly worldwide, mostly in tropical countries.

In addition to their value as wildlife food plants, several species of Echinodorus are cultivated as ornamentals for water gardens and as aquarium plants.


Export To PDF Export To Word Export To SDD
Switch to indented key format
1 Petals 1B3 mm long; stamens 6B9, the filament attached at the anther base; achenes 10B20 3 Echinodorus tenellus var. parvulus
+ Petals 5B12 mm long; stamens (9)12 to many, the filament attached toward the middle of the anther (2)
2 (1) Inflorescences erect, usually with a few basal branches; fruits with the beak 0.5B0.8(B1.0) mm long 1 Echinodorus berteroi (Spreng.) Fassett var. berteroi
+ Inflorescences prostrate at maturity, unbranched; fruits with the beak 0.2B0.5 mm long 2 Echinodorus cordifolius
© 2018 Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110