Northeastern Asian Flora
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Pycreus sanguinolentus (Vahl) Nees   (redirected from: Cyperus sanguinolentus var. spectabilis Makino)
Family: Cyperaceae
[Chlorocyperus eragrostis (Lam.) Rikli, moreCyperus areolatus R.Br., Cyperus atratus Steud., Cyperus concolor Steud., Cyperus declinatus Moench, Cyperus declinatus var. limbatus Druce, Cyperus eragrostis Lam., Cyperus eragrostis f. latifrons K?., Cyperus eragrostis f. melanocephalus (Boeckeler) J.V.Suringar, Cyperus eragrostis f. rubromarginatus K?., Cyperus eragrostis f. tener K?., Cyperus eragrostis var. compactus (Desv.) K?., Cyperus eragrostis var. cyrtostachys Miq., Cyperus eragrostis var. flaccidulus Boeckeler, Cyperus eragrostis var. humilis Miq., Cyperus eragrostis var. melanocephalus Boeckeler, Cyperus eragrostis var. micronux C.B.Clarke, Cyperus eragrostis var. microstachyus Boeckeler, Cyperus eragrostis var. minor Ewart, Cyperus eragrostis var. pauperita J.M.Black, Cyperus erythraeus Schrad. ex Schult., Cyperus korshinskyi Meinsh., Cyperus latispicatus var. setiformis (Korsh.) T.Koyama, Cyperus levis F.Muell. ex C.B.Clarke, Cyperus louisianensis Thieret, Cyperus melanocephalus Miq., Cyperus monandrus Roth, Cyperus neurotropis Steud., Cyperus ochrocephalus Steud., Cyperus prionotropis Steud., Cyperus rehmannii Boiss., Cyperus sanguinolentus Vahl, Cyperus sanguinolentus f. cyrtostachys (Miq.) K?., Cyperus sanguinolentus f. flaccidulus (Boeckeler) K?., Cyperus sanguinolentus f. humilis (Miq.) K?., Cyperus sanguinolentus f. melanocephalus (Miq.) K?., Cyperus sanguinolentus f. neurotropis (Steud.) K?., Cyperus sanguinolentus f. rubromarginatus (Schrenk) K?., Cyperus sanguinolentus f. setaceus K?., Cyperus sanguinolentus subsp. cyrtostachys (Miq.) A.Kern., Cyperus sanguinolentus subsp. melanocephalus (Miq.) A.Kern., Cyperus sanguinolentus subsp. sacer Korlahalli, Cyperus sanguinolentus subsp. teysmannii (Boeckeler) A.Kern., Cyperus sanguinolentus var. areolatus (R.Br.) K?., Cyperus sanguinolentus var. korshinskyi (Meinsh.) K?., Cyperus sanguinolentus var. micronux (C.B.Clarke) K?., Cyperus sanguinolentus var. nipponicus Ohwi, Cyperus sanguinolentus var. spectabilis Makino, Cyperus sanguinolentus var. teysmannii (Boeckeler) K?., Cyperus teysmannii Boeckeler, Cyperus vegetus Willd., Cyperus vegetus var. compactus Desv., Cyperus vegetus var. limbata C.B.Clarke, Cyperus vegetus var. obtusangulus Kuntze, Cyperus vegetus var. triangularis Boeckeler, Cyperus vegetus var. trigonus Kuntze, Pycreus korshinskyi (Meinsh.) V.I.Krecz., Pycreus rubromarginatus E.G.Camus, Pycreus sanguinolentus f. humilis (Miq.) L.K.Dai, Pycreus sanguinolentus f. melanocephalus (Miq.) L.K.Dai, Pycreus sanguinolentus f. rubromarginatus (Schrenk) L.K.Dai, Pycreus sanguinolentus subsp. cyrtostachys (Miq.) Karth., Pycreus sanguinolentus subsp. melanocephalus (Miq.) Karth., Pycreus sanguinolentus subsp. micronux (C.B.Clarke) H.B.Naithani & S.N.Biswas, Pycreus sanguinolentus subsp. sacer (Korlahalli) Karth., Pycreus sanguinolentus var. cyrtostachys (Miq.) L.K.Dai, Pycreus sanguinolentus var. micronux (C.B.Clarke) Karth., Youngia thunbergiana DC.]
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  • Japan Flora
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Japan Flora: Culms tufted, l(M0 cm. long, decumbent at base; leaves 1-3 mm. wide; inflorescence corymbiform (often a head in forma nipponicus T. Koyama); bracts 2 or 3, much longer than the inflorescence; spikelets spicate, divergent, com­pressed, narrowly oblong, 1-2 cm. long, 25-3.5 mm. wide, (rscely to 4 mm. wide in forma spectabilis (Makino) Ohwi), sanguineous; scales broadly ovate, 25-35 mm. long, obtuse, entire; achenes 2/5-1/2 as long as the scale, biconvex, dark brown, broadly obovate; stigmas 2. July-Oct. Wet places.

Hokkaido, Honshu, Shikoku, Kyushu; common. Warmer parts of the E. Hemisphere.

Pycreus sanguinolentus
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Development supported by College of Agriculture and Life Sciences of Seoul
National University and Korea National Arboretum of Korea Forest Service.
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