Cyperus digitatus
From Wikipedia, the free encyclopedia
| Cyperus digitatus | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Cyperaceae |
| Genus: | Cyperus |
| Species: | C. digitatus |
| Binomial name | |
| Cyperus digitatus | |
Cyperus digitatus, also known as finger flatsedge in the United States,[2] and chang xiao sui suo cao in China,[3] is a sedge of the family Cyperaceae that is native to tropical and subtropical areas of Africa, Asia, the Americas and Australia.[4][5]
The grass like sedge typically grows to a height of 1 metre (3.3 ft).[5] The perennial sedge has short woody rhizomes and tufted smooth culms with a triangular cross-section that grow to a height of 0.5 to 1.5 m (1 ft 8 in to 4 ft 11 in). The leaves below are nearly the same length as the culms and have brown to purple coloured sheaths. The sub-leathery, flat to folded leaf blade has a width of 4 to 15 mm (0.16 to 0.59 in). It form as inflorescence with six to ten rays that have a length up to 18 cm (7.1 in) and have four to seven raylets that have cylindrical spikes that are 3 to 6 cm (1.2 to 2.4 in) long and 0.2 to 2 cm (0.079 to 0.787 in) wide.[6]
Taxonomy
The species was first described by the botanist William Roxburgh in 1820 as a part of the work Flora Indica; or descriptions of Indian Plants. The type specimen was collected by Roxburgh in India.[3] It has ten synonyms including; Cyperus bourgaei, Cyperus digitatus var. laxiflorus, Cyperus digitatus var. pingbienensis and Cyperus mexicanus.[3]