Liatris spicata
Liatris ( Liatris spicata )
The Liatris ( Liatris spicata ), more precisely spiked called Liatris spicata, is a flowering plant in the sunflower family ( Asteraceae). She is from North America. Their varieties are planted in temperate areas of the world as ornamentals in parks and gardens and used as a cut flower.
Description
Liatris spicata grows as a perennial herbaceous plant, reaching the heights of growth of mostly 40 to 110 (20 to 180) cm. They often form spherical to ovoid tubers and rhizomes elongated than outlasting. The upright, hairless stems are usually unbranched, branched or rarely at the base. The alternate, sessile or stalked leaves are more or less grassy with smooth leaf margins; they are 12 to 35 cm long and usually 4 to 10 ( 2-20 ) mm wide.
In large terminal inflorescences total aged men often stand together many basket- shaped part inflorescences that bloom from top to bottom. The unequal bracts are sometimes ciliate but not in dentate (rarely three) are usually four to five series and their membranous margins. The flat inflorescence base has no chaff leaves. At most 1 to 2 mm short stemmed flowers cups have a length of 7-11 mm and a diameter of generally 4 to 6 mm and most contain only five to eight (four to 14) florets. The petals are mostly red purple to pink - on, sometimes white. The inner hairless Kronröhren have a four to six times smaller in diameter, such as length.
The eight - to elfrippige achene is (3.5 to ) 4.5 to 6 mm long. The durable Pappus is more or less equal in length to the crown and consists of bearded bristles in one to two rows.
System
There are two varieties:
- Liatris spicata var resinosa ( Nuttall ) Gaiser
- Liatris spicata (L.) Willd. var spicata
Swell
- Guy L. Nesom: Liatris in the Flora of North America, Volume 21, p 523: Liatris spicata - Online. (English )