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Species
Cyperus rotundus L.
IUCN
NCBI
EOL Text
"Four subspecies are recognized, the nominate rotundus, divaricatus Lye, merkeri (C.B.Clarke) Kük. and retzii Kük. The variety taylorii (originally described as a species) is now considered to be a synonym of the nominate subspecies."
License | http://creativecommons.org/licenses/by/3.0/ |
Rights holder/Author | "Molur et al, 2011", IUCN and ZOO 2011, India Biodiversity Portal |
Source | http://indiabiodiversity.org/species/show/229485 |
300-2400 m
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=110&taxon_id=200026713 |
Fl. Per.: April - October.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200026713 |
"Red List Category & Criteria: Least Concern ver 3.1 Year Assessed: 2006 Assessor/s: Eastern Arc Mountains & Coastal Forests CEPF Plant Assessment Project Reviewer/s: Beentje, H., Gereau, R., Kabuye, C., Kalema, J., Luke, Q., Lyaruu, H., Maunder, M., Mwachala, G., Ndangalasi, H., Njau, F. & Schatz, G. (East African Plants Red List Authority) Justification: A very widespread and common species with no major threats, hence listed as Least Concern. Conservation Actions: Occurs in many protected areas across its extensive range."
License | http://creativecommons.org/licenses/by/3.0/ |
Rights holder/Author | "Molur et al, 2011", IUCN and ZOO 2011, India Biodiversity Portal |
Source | http://indiabiodiversity.org/species/show/229485 |
Perennial, 20-60 cm. Rhizome dark brown, woody; stolons numerous, long-creeping, strong, 1-1.5 mm diam., producing tubers, c. 20 x 9 mm, dark brown. Stem 1-2.5 mm diam., trigonous, green, smooth. Leaves shorter than stem; sheaths to 10 cm, wide, acute, grey-brown or brown, sometimes with reddish tint, mouth margin lingulate; blades to 30 cm, 1-4.5 mm wide, grey-green or green, flat or folded, slightly keeled, margins smooth or towards the apex barbed, apex long-attenuate, acute, trigonous, scabrous. Inflorescence an anthelodium, 40-100 mm; 2-3 lowermost bracts foliose, longer than inflorescence; primary branches 5-8, to more than 50 mm long; secondary anthelodia 25-50 mm; clusters of spikes 15-40 mm, of (2-)5-7(-9) spikes on slightly elongated axis, sometimes nearly digitately; spikes 10-40 x 1.5-2 mm, with 11-51 glumes, glume-like bract c. 2 mm, glume-like prophyll 1.9-2.4 mm, bi-nerved, sterile; spike rachis 4-angled, c. 0.5 mm wide, internodes 0.7-1 mm, winged; glumes (2.3-)2.7-3.7 mm, cymbiform, rather closely imbricate, obtuse, dark reddish brown, or grey-brown, sides with two distinct nerves, nerveless area wide, margin narrowly or sometimes widely scarious, towards apex embracing nut. Nut 1.3-1.8 x 0.7-1 mm, ellipsoid or obovoid, trigonous, brown to blackish brown, clearly or obscurely reticulate papillose.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200026713 |
Perennial.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Bibliotheca Alexandrina, BA Cultnat, Bibliotheca Alexandrina - EOL Ar |
Source | http://lifedesk.bibalex.org/ba/pages/2626 |
Flowering class: Monocot Habit: Herb
"Erect, non-tufted, rhizomatous perennials; rhizome stoloniferous, stolons terminated by an ellipsoidal or globose-ovoid tuber; culms bearing a corm-like enlargement at base, 12-45 cm tall, triquetrous. Leaves few, basal, 3-28 x 0.2-0.5 cm, linear, gradually acuminate; sheaths 1-7 cm long, light brownish. Inflorescence simple or compound, 2-11 cm across, primary rays 1-8; leafy bracts 2-4, usually shorter, but in some the lowest one exceeding the inflorescence. Spikelets 1-2.3 x 0.15 - 0.3 cm, linear, acute at apex, compressed, brown. Glumes 3-3.5 x 1.5-2 mm, ovate-elliptic, keeled, ferrugineous brown with pale narrow hyaline margins. Stamens 3. Stigmas long, 3. Nut 1-1.5 x 0.5 mm, obovate-oblong, trigonous, apiculate, brown."