PlantNET Home DONATE TODAY | PlantNET Home | Search NSW Flora | Contact Us  
Plant Name Search
Index Search
Spatial Search
Identification Keys
Telopea Journal
Other Data Sources

Cyperus betchei (Kük.) S.T.Blake subsp. betchei Family Cyperaceae
Cyperus betchei subsp. betchei (Kük.) S.T.Blake APNI*

Synonyms: Cyperus angustatus var. betchei Kük. APNI*

Description: Tufted perennial, with short rhizome.

Culms trigonous to terete, smooth, 35–100 cm high, 1.3–2.7 mm diam.

Leaves mostly shorter than culms, often septate-nodulose, 2–6 mm wide. Inflorescence compound, with 4–7 primary branches to 10 cm long; clusters loose, spicate to subdigitate, hemispherical, 25–65 mm diam.; involucral bracts leaf-like, 2 or 3 much exceeding inflorescence. Spikelets flattened, 4–9 per cluster, 8–43 mm long, 1.2–2 mm wide in side view, 10–45-flowered; rachilla broadly winged; glume spacing 1.6–2.3 mm; spikelet falling as unit, or rachilla persistent. Glumes retuse to obtuse with mucro to 0.2 mm long, with sides 2- or 3-nerved, 2.5–3.4 mm long, yellow to dark golden brown. Stamens 3. Style 3-fid.

Nut trigonous, very narrow-ellipsoid, about as long as glume, 1.9–2.2 mm long, c. 0.4 mm diam., pale yellow-brown.

Photo Karen L Wilson

Photo Karen L Wilson

Photo Karen L Wilson

Flowering: spring–summer.

Distribution and occurrence: Grows in seasonally wet situations, such as stream banks and roadside drains; south to the Pilliga Scrub. Also in Qld.
NSW subdivisions: NWP, NWS
Other Australian states: Qld
AVH map***

Text by KL Wilson (1993); edited KL Wilson (Jan 2008)
Taxon concept: Flora NSW vol. 4 1993

The single subspecies in NSW. Characters and distribution as for the species in NSW.

APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
  Privacy | Copyright | Disclaimer | About PlantNET | Cite PlantNET