Difference between revisions of "Eleocharis quadrangulata (Michaux) Roemer & Schultes in J. J. Roemer et al. (Q3326)"

Flora Commons

accepted id

Eleocharis quadrangulata (Michaux) Roemer & Schultes

taxon name

Eleocharis quadrangulata

taxon authority

(Michaux) Roemer & Schultes

taxon rank

species

publication

FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.

taxon status

accepted

1 reference

taxon name

Eleocharis quadrangulata

1 reference

taxon authority

(Michaux) Roemer & Schultes

1 reference

taxon rank

species

1 reference

taxon status

accepted

1 reference

common name

éléocharide à tige carrée (French)

1 reference

square-stemmed spikerush (English)

1 reference

angled spikerush (English)

1 reference

four-angled spikerush (English)

1 reference

Square-stemmed spike-rush (English)

1 reference

VasCan taxon numeric id

5253

1 reference

distribution

CA-ON

establishment of distribution

occurrence status

present

native

1 reference

publication

Newmaster, S.G. & S. Ragupathy. 2005. Flora Ontario - Integrated Botanical Information System (FOIBIS), Phase I. University of Guelph, Canada. http://www.uoguelph.ca/foibis http://www.uoguelph.ca/foibis/

CA-PE

occurrence status

excluded

1 reference

CA-NS

occurrence status

excluded

1 reference

CA-ON

Ont.

1 reference

US-AR

Ark.

1 reference

US-CA

Calif.

1 reference

US-CT

Conn.

1 reference

US-DE

Del.

1 reference

US-FL

Fla.

1 reference

US-GA

Ga.

1 reference

US-IL

Ill.

1 reference

US-IN

Ind.

1 reference

US-KY

Ky.

1 reference

US-LA

La.

1 reference

US-MA

Mass.

1 reference

US-MI

Mich.

1 reference

US-MS

Miss.

1 reference

US-MO

Mo.

1 reference

US-NJ

N.J.

1 reference

US-NY

N.Y.

1 reference

US-NC

N.C.

1 reference

US-OH

Ohio

1 reference

US-OK

Okla.

1 reference

US-OR

Oreg.

1 reference

US-PA

Pa.

1 reference

US-SC

S.C.

1 reference

US-TX

Tex.

1 reference

US-VA

Va.

1 reference

US-WV

W.Va.

1 reference

US-WI

Wis.

1 reference

s to c Mexico

1 reference

Eleocharis subg. Limnochloa (Palisot de Beauvois ex T. Lestiboudois) Torrey

parent taxon

1 reference

taxon habit

herb

1 reference

GBIF taxon key

2717631

1 reference

Global Biodiversity Information Facility

IUCN Redlist Category

NE

1 reference

Global Biodiversity Information Facility

taxon habitat

shallow water

1 reference

fresh lake

1 reference

pond shores

1 reference

marshes

1 reference

elevation

10–600 m

measurement range from

10 meter

measurement range to

600 meter

1 reference

special status

W1

1 reference

F

1 reference

taxon description fragment

Plants perennial;

1 reference

d0_s0

rhizomes 1.5–4 mm thick, soft to hard, longer internodes 3–8 cm, scales 5–10 mm, tubers absent.

1 reference

d0_s1

Culms acutely quadrangular, (30–) 45–105 cm × (1–) 2–5.4 mm, soft to firm, internally spongy, transverse septa incomplete;

1 reference

d0_s2

plants never forming filiform, flaccid culms.

1 reference

d0_s3

Leaves: distal leaf-sheaths persistent, membranous, apex narrowly acute to acuminate, sometimes prolonged into a bladelike portion to 8 cm.

1 reference

d0_s4

Spikelets not proliferous, (15–) 20–76 × 3–5 (–6) mm;

1 reference

d0_s5

proximal scale empty, amplexicaulous, (1–) 2.2–5.4 mm;

1 reference

d0_s7

floral scales (28–) 45–135, 2–3 per mm of rachilla, stramineous to pale-brown, usually with pale to dark-brown submarginal band, midrib region sometimes greenish, broadly obovate to ovate, (4–) 4.5–6.2 × 2.8–5 mm, subcartilaginous, apex rounded to obtuse.

1 reference

d0_s8

Flowers: perianth bristles 6–7, whitish to brown, slender, often markedly unequal, shorter than achene or some equalling tubercle, sparsely retrorsely spinulose to smooth;

1 reference

d0_s9

anthers stramineous to redbrown, 2.3–2.9 mm;

1 reference

d0_s10

styles 3-fid, sometimes 2-fid.

1 reference

d0_s11

Achenes yellow or pale green to brown or purplish, biconvex, obovoid to obpyriform, 1.8–3 × 1.3–2 mm, almost smooth to markedly sculptured at 10–15X, each face with 19–38 rows of almost linear, transversely elongated cells, which sometimes isodiametric at achene base, apex often constricted to neck 0.3–0.4 mm wide.

1 reference

d0_s12

Tubercles dark-brown or whitish, deltoid to high-pyramidal or lanceoloid, 0.7–1.5 × 0.4–1 mm, often spongy.

1 reference