하워르티아 레투사

하워르티아 레투사

 

 

 

 

 

 

과명 Liliaceae (백합과) 속명 Haworthia (하워티아속) 전체학명 Haworthia retusa (L.) Duval 추천명 하워르티아 레투사 이명   외국명

 

 

 

Synonyms:

• Haworthia retusa (L.) Duval
• Aloe retusa L.
• Apicra retusa (L.) Willd.
• Catevala retusa (L.) Medik.
• Kumaria spicata Raf.

Description: Haworthia retusa is a well known succulent with shiny, green star-shaped rosettes which was introduced into cultivation at the beginning of the eighteenth century. The top surface of its leaves is smooth, with nearly translucent "windows" and veining, giving a very odd look to the plant. In its native habitat it is often buried in the ground up to the leaf part with the window. Most retusas in the field are not prolific and stay solitary or forms few branched groups. The opposite is true of the nursery bench, where most plants offered as "retusa" sucker freely and have the ability to form huge clumps. (These are often not even Haworthia retusa, but instead are Haworthia turgida) This plant is one of the most morphologically variable taxon of the genus and comprises many forms where each form is linked to others by populations of plants with intermediate characteristics. In cultivation both dark and light green forms may occur.
Stem: The leafy stem is very short.
Rosettes: Star-like, short and plump, with 10 to 15 leaves. Individual rosettes 5-10(-15)cm across.
Leaves: 2,5-4(-8) cm long, about 1-2 cm broad and 8-12 mm thick in the centre, fleshy, with stored water, multifarious, ovate triangular to deltoid, somewhat abruptly flattened on the upper half of the face and reflexed in the upper third (slightly recurved at tips), cuspidate with terminal bristle 3-6 mm long, rounded on the back and keeled in the upper half. Margins and keel with or without sparse fine white teeth. Leaves are smooth without spines or tubercles on both surfaces, lime green to glossy green, brownish-green or with purplish hue in bright light. The terminal end-area is more or less retuse (flat), and marked with dark windows with clear green vertical stripes.
Inflorescence: Flower-stalk up to 30 cm tall, single, unbranched, erect and wiry; raceme lax about 15 cm long; pedicels very short; bracts small, deltoid.
Flowers: 20 to 30 tiny, short-lived, small, inconspicuous, white with greenish-brown veins, and not especially attractive. Perianth about 2 cm long; limb half as long as the tube.
Blooming Time: In late spring to summer. Flower fairly readily (indoors too), once they're a certain age, and may even flower more than once in the same year.

http://www.llifle.com/Encyclopedia/SUCCULENTS/Family/Aloaceae/16708/Haworthia_retusa