Cyperaceae taxon details
Carex bajacalifornica Zika
1678105 (urn:lsid:marinespecies.org:taxname:1678105)
accepted
Species
terrestrial
Zika, P. F. et al. (2018). Two new sedges (Carex sect. Acrocystis, Cyperaceae) from Northwestern Mexico and Sourthern California. <em>Madroño.</em> 65(4): 192-200., available online at https://www.biodiversitylibrary.org/page/63629663#page/392/mode/1up
page(s): 192 [details]
page(s): 192 [details]
Holotype RSA 353942, geounit Baja California
Holotype RSA 353942, geounit Baja California [details]
Description Plants densely to loosely cespitose, rhizomes internodes 0-4 cm, forming tufts. Proximal sheaths reduced to scales,...
Description Plants densely to loosely cespitose, rhizomes internodes 0-4 cm, forming tufts. Proximal sheaths reduced to scales, bladeless, dark purple, smooth to scabrous on the prominent nerves, the veins generally persisting as fibers at the plant base, or as ladder- fibrillose sheath fronts. Distal sheaths with translucent fronts, red- or green-veined, apices V-shaped; ligules obtuse, mostly longer than wide, margins scabrous; distal sheaths bearing blades. Leaves in sterile rosettes; stem leaves 1-3 on proximal 1/4 of fertile stems, most blades taller than fertile stems, blades 2—20.5 cm long, 1.3—-2.4 mm wide, flat to shallowly V- or W-shaped in cross-section, sometimes folded, veins 5-9, prominent, adaxial surface smooth to slightly scabrous distally, blade margins scabrous, apices filiform-triangular, densely scabrous, discolored distally, acute to acuminate, bristly (visible at 20X magnification). Stems (culms) 1—6.5cm tall, triangular in cross section, usually scabrous distally. Basal inflorescences: spikes 1-3, 4-7 mm long, sessile or on erect slightly scabrous peduncles to 5mm, 0.2—0.3 mm wide, with 2—5 perigynia, pistillate. Non-basal portion of inflorescence: 9—15 mm long, on elongate stems, with 1-3 spikes, the proximal pistillate (rarely androgynous), 4-6 mm long, with 2-4 perigynia , sessile or on peduncles to 4 mm long; overtopped by foliage: lowest non-basal inflorescence bract translucent, green, or red-brown at base, midvein green, blade flat to slightly folded, at least distally, weakly 1-3 veined, scabrous distally, scarcely leaf-like, often mostly scarious, 7-11 mm long, shorter than inflorescence (with rare exceptions on atypical late season shoots), apex filiform-triangular; distal spike staminate, 5-13 mm long, 0.9-2.4 mm wide, 3-11 flowered , often inconspicuous; stamens 3 per scale, filaments white, anthers yellow, linear-oblong, 2.3-2.5 mm long, apical appendage 0.1 mm long, not bristly. Staminate scales: 2.5—5.3 mm long, midvein green, bordered with inconspicuous to prominent red-brown bands at maturity, the translucent margins 0.1—0.4 mm wide, smooth or scabrous on the prominent or keeled midvein, with 6-8 inconspicuous fine parallel lateral veins, apex of proximal scales tending to be blunt to truncate, of distal scales tending to be acute to acuminate, or slightly notched and mucronate, the mucro to 0.5 mm. Pistillate scales: oblong-obovate to oblong, clasping at base, 2.6—4.5 mm long, 1.3—2.0 mm wide, shorter than or occasionally subequal to the perigynia, glabrous, smooth or slightly scabrous, green central band with 1(—3) strong midveins, the mid-veins slightly or strongly raised, forming a smooth to slightly scabrous distal keel, the green portion flanked with wide red-brown to dark purple bands and up to 6 inconspicuous fine parallel veins, scarious margins 0.1-0.3 mm wide, distal margins usually entire, apex acute to acuminate, sometimes shallowly notched and mucronate, the mucro to 0.6 mm and smooth to scabrous or bristly. Perigynia: obovate, pubescent, 2.9-3.7 mm long, 1.2—1.6 mm wide; fresh stipes presumed to be fleshy, oily, turgid and pale: dried stipes shriveled, 0.6—1.1 mm long, longer than the beak; body plump, rounded-trigonous, usually with 3—5 + prominent veins on | or more faces when mature; beak distinct, only slightly flattened, erect or slightly incurved, slightly pubescent, the margins subentire, not scabrous, 0.35—0.8 mm long (measured from inflection point), including white teeth 0.1—0.2 mm long, 3-styled. Achenes broadly ovoid to oblong-ovoid, rounded-trigonous, surface honeycomb-reticulate, papillose (40X), brown, 1.8—2.0 mm long, 1.3-1.4 mm wide. [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex bajacalifornica Zika. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1678105 on 2025-09-14
Date
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by
2024-12-10 11:47:54Z
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Nomenclature
original description
Zika, P. F. et al. (2018). Two new sedges (Carex sect. Acrocystis, Cyperaceae) from Northwestern Mexico and Sourthern California. <em>Madroño.</em> 65(4): 192-200., available online at https://www.biodiversitylibrary.org/page/63629663#page/392/mode/1up
page(s): 192 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 192 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
Present Inaccurate Introduced: alien Containing type locality
Holotype RSA 353942, geounit Baja California [details]
Isotype CAS 816834, geounit Baja California [details]
From editor or global species database
Description Plants densely to loosely cespitose, rhizomes internodes 0-4 cm, forming tufts. Proximal sheaths reduced to scales, bladeless, dark purple, smooth to scabrous on the prominent nerves, the veins generally persisting as fibers at the plant base, or as ladder- fibrillose sheath fronts. Distal sheaths with translucent fronts, red- or green-veined, apices V-shaped; ligules obtuse, mostly longer than wide, margins scabrous; distal sheaths bearing blades. Leaves in sterile rosettes; stem leaves 1-3 on proximal 1/4 of fertile stems, most blades taller than fertile stems, blades 2—20.5 cm long, 1.3—-2.4 mm wide, flat to shallowly V- or W-shaped in cross-section, sometimes folded, veins 5-9, prominent, adaxial surface smooth to slightly scabrous distally, blade margins scabrous, apices filiform-triangular, densely scabrous, discolored distally, acute to acuminate, bristly (visible at 20X magnification). Stems (culms) 1—6.5cm tall, triangular in cross section, usually scabrous distally. Basal inflorescences: spikes 1-3, 4-7 mm long, sessile or on erect slightly scabrous peduncles to 5mm, 0.2—0.3 mm wide, with 2—5 perigynia, pistillate. Non-basal portion of inflorescence: 9—15 mm long, on elongate stems, with 1-3 spikes, the proximal pistillate (rarely androgynous), 4-6 mm long, with 2-4 perigynia , sessile or on peduncles to 4 mm long; overtopped by foliage: lowest non-basal inflorescence bract translucent, green, or red-brown at base, midvein green, blade flat to slightly folded, at least distally, weakly 1-3 veined, scabrous distally, scarcely leaf-like, often mostly scarious, 7-11 mm long, shorter than inflorescence (with rare exceptions on atypical late season shoots), apex filiform-triangular; distal spike staminate, 5-13 mm long, 0.9-2.4 mm wide, 3-11 flowered , often inconspicuous; stamens 3 per scale, filaments white, anthers yellow, linear-oblong, 2.3-2.5 mm long, apical appendage 0.1 mm long, not bristly. Staminate scales: 2.5—5.3 mm long, midvein green, bordered with inconspicuous to prominent red-brown bands at maturity, the translucent margins 0.1—0.4 mm wide, smooth or scabrous on the prominent or keeled midvein, with 6-8 inconspicuous fine parallel lateral veins, apex of proximal scales tending to be blunt to truncate, of distal scales tending to be acute to acuminate, or slightly notched and mucronate, the mucro to 0.5 mm. Pistillate scales: oblong-obovate to oblong, clasping at base, 2.6—4.5 mm long, 1.3—2.0 mm wide, shorter than or occasionally subequal to the perigynia, glabrous, smooth or slightly scabrous, green central band with 1(—3) strong midveins, the mid-veins slightly or strongly raised, forming a smooth to slightly scabrous distal keel, the green portion flanked with wide red-brown to dark purple bands and up to 6 inconspicuous fine parallel veins, scarious margins 0.1-0.3 mm wide, distal margins usually entire, apex acute to acuminate, sometimes shallowly notched and mucronate, the mucro to 0.6 mm and smooth to scabrous or bristly. Perigynia: obovate, pubescent, 2.9-3.7 mm long, 1.2—1.6 mm wide; fresh stipes presumed to be fleshy, oily, turgid and pale: dried stipes shriveled, 0.6—1.1 mm long, longer than the beak; body plump, rounded-trigonous, usually with 3—5 + prominent veins on | or more faces when mature; beak distinct, only slightly flattened, erect or slightly incurved, slightly pubescent, the margins subentire, not scabrous, 0.35—0.8 mm long (measured from inflection point), including white teeth 0.1—0.2 mm long, 3-styled. Achenes broadly ovoid to oblong-ovoid, rounded-trigonous, surface honeycomb-reticulate, papillose (40X), brown, 1.8—2.0 mm long, 1.3-1.4 mm wide. [details]
