Asparagus (genus)

{| border="1" cellspacing="0" align="right" cellpadding="2" style="margin: 0 0 0.5em 1em;"\n!align="center" bgcolor="lightgreen"|Asparagus\n|-\n|
\nAsparagus (Asparagus officinalis)\n|-\n!align="center" bgcolor="lightgreen"|\n|-\n|\n{| align="center"\n| :\n|Plantae\n|-\n| :\n|Magnoliophyta\n|-\n| :\n|Liliopsida\n|-\n|:\n|Asparagales\n|-\n| :\n| Asparagaceae\n|-\n| \n| Asparagus\n|}\n|-\n!align="center" bgcolor="lightgreen"|Species\n|-\n| See text\n|} \nAsparagus is the name of a genus of plants, a member of the family Asparagaceae (formerly placed in the Liliaceae). There are more than 120 species, all from the Old World, introduced in many countries in both hemisphere and throughout temperate and tropical regions. Many species from Africa are now included in the genera \Protasparagus and Myrsiphyllum

Description

They range from herbs to somewhat woody climbers. Three are dioecious species, i.e. with male and female flowers (Asparagus officinalis, Asparagus schoberioides and Asparagus cochinchinensis). The others are hermaphroditic. The best known member of the genus is the vegetable asparagus (Asparagus officinalis). Other species of asparagus are grown as ornamentals. They are often called 'ferns' and are often used for foliage display, and as houseplants. They are covered with needles, that look like plumes. These are flattened stems (phylloclades), that serve as leaves. Commonly-grown ornamental species are Asparagus plumosus and Asparagus sprengerii. Some have become major environmental weeds. \nThe Asparagus Fern (Asparagus densiflorus) is grown for its unique foliage and form, both as a houseplant, and as an annual plant (or a perennial plant in tropical areas) for landscaping. \n

Species

\n*Asparagus aethiopicus (= Protasparagus aethiopicus)\n*Asparagus africanus (= Protasparagus africanus ?) : African Asparagus\n*Asparagus asparagoides ( = Myrsiphyllum asparagoides) : Smilax, African Asparagus Fern, (Austr.) Bridal Creeper\n*Asparagus cochinchinensis\n*Asparagus declinatus : Foxtail Asparagus Fern, (Austr.) Bridal vein\n*Asparagus densiflorus (= Protasparagus densiflorus) : Ground Asparagus, Asparagus Fern, (S. Afr.) (S. Afr.) Emerald Fern, Basket Asparagus\n**Asparagus densiflorus 'Sprengeri' ( = Protasparagus densiflorus 'Sprenger' ) : Sprenger's Asparagus Fern\n*Asparagus falcatus\n*Asparagus macowanii (= Protasparagus macowanii)\n*Asparagus officinalis : Asparagus\n**Asparagus officinalis officinalis : Garden Asparagus\n**Asparagus officinalis prostratus : \n*Asparagus plumosus (= Protasparagus plumosus ?) : Asparagus Fern, Florist's Fern, (Austr.) Climbing Asparagus\n*Asparagus racemosus\n*Asparagus scandens\n*Asparagus schoberioides\n*Asparagus setaceus (= Protasparagus setaceus) : Fern Asparagus, Lace Fern\n*Asparagus umbellatus\n*Asparagus virgatus \n

Diseases of Asparagus

\n*Fusarium root and crown rot : caused by two species of fungi : Fusarium monoliforme and Fusarium oxysporium asparagi.\n*Asparagus rust : caused by the fungus Puccinia asparagi\n*Botrytis blight : caused by the fungus Botrytis cinerea. \n

Pests

\n*Asparagus Beetle\n*Spotted Asparagus Beetle (Crioceris asparagi)\n*Asparagus fern Caterpillar, (Am.) Beet Armyworm : caterpillar of the butterfly Spodoptera exigua\n*Asparagus Fly : Platyparaea poeciloptera, a fruit fly.

Reference

Fellingham, A.C. & Meyer, N.L. 1995. New combinations and a complete list of Asparagus species in southern Africa (Asparagaceae). Bothalia 25: 205-209

External link

• Photo of Asparagus Beetle