Isolepis setacea

Isolepis setacea var. aberdarica R.W. Haines & Lye:
Kenya (Africa & Madagascar)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.

Isolepis setacea (L.) R. Br.:
Afghanistan (Asia)
Australia (Oceania)
Bhutan (Asia)
Congo (Brazzaville) (Africa & Madagascar)
Cameroon (Africa & Madagascar)
China (Asia)
Costa Rica (Mesoamerica)
Ecuador (South America)
Egypt (Africa & Madagascar)
Ireland (Europe)
India (Asia)
Kenya (Africa & Madagascar)
Kyrgyzstan (Asia)
Kazakhstan (Asia)
Lebanon (Asia)
Lesotho (Africa & Madagascar)
Morocco (Africa & Madagascar)
Namibia (Africa & Madagascar)
Nepal (Asia)
Pakistan (Asia)
Russian Federation (Asia)
Saudi Arabia (Asia)
Spain (Europe)
Thailand (Asia)
Tajikistan (Asia)
Turkey (Asia)
Tanzania (Africa & Madagascar)
Uganda (Africa & Madagascar)
Uzbekistan (Asia)
Yemen (Asia)
South Africa (Africa & Madagascar)
Bolivia (South America)
France (Europe)
Czechoslovakia (Europe)
Albania (Europe)
Ethiopia (Africa & Madagascar)
New Zealand (Oceania)
United Kingdom (Europe)
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.

introduced; B.C.; Calif., Oreg., Wash.; Eurasia; Africa; Australia (including Tasmania); New Zealand.

Canada

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

Eurasia, Australia.

Distribution: Europe, N Africa, mountains of E Africa, southern Africa, Lebanon, Syria, Turkey, Caucasus, Kazakhstan, Uzbekistan, Tadjikistan, W China, in SW Asia from NW Iran to Pakistan and east to Sikkim; introduced to western N America and Tasmania.

2200-3800 m

Annual, forming small tussocks, 2.5-20 cm. Roots fibrous. Stem 0.2-0.3 mm diam., terete, smooth, green or yellowish green. Leaves reduced, usually with one complete leaf at stem base; sheaths to 20 mm, lowest bladeless, scarious, often reddish; longest much overtopping lower ones, yellow green or lower part often reddish, mouth wide, scarious, oblique; blades 1-20 mm, as wide as stem, channelled, smooth, apex obtuse. Inflorescence 1-2 sessile spikes; bract as long as spike or to 10 mm, basal part (sheath) scarious, keeled, often reddish brown. Spikes 2-5 mm, globose or ovoid, with up to c. 30 glumes; when two spikes, lower with obtuse, glume-like prophyll; glumes 1.3-1.5 mm, cymbiform, keeled, midnerve strong, at first green, smooth, barely reaching obtuse apex, sides with 3-5 fine nerves, reddish brown or sometimes colourless, scarious. Stamens 2; stigmas 3. Nut 0.7-0.9 x 0.5-0.6 mm, with wide stipe and narrow beak c. 0.1 mm, obovoid, unequally bi-convex, brown, sometimes whitish, trabeculate with pronounced longitudinal ribs.

Plants perennial (annual?), forming dense mats; rhizomes creeping; culms, leaves, and bracts orange-punctate at 10–15X. Culms 3–25 cm × 0.2–0.3 mm. Leaves: sheaths usually reddish proximally; distal blade rudimentary to 6 cm × 0.2–0.5 mm. Inflorescences: involucral bracts 1 or 2; proximal bract erect to spreading, 3–10(–20) mm; distal bract reflexed, to 5 mm. Spikelets 3–6 × 2 mm; scales partly orange- to red- or blackish brown, midrib greenish to stramineous, not gibbous, prominently ribbed near midrib, often with 1+ pale veins on dark sides, 1.2–1.6 × 0.6–1 mm, membranous, hyaline, apex rounded to obtuse, mucro to 0.1 mm; proximal scale like others. Flowers: anthers 0.3–0.5 mm; styles 3-fid or 3-fid and 2-fid. Achenes falling separately from floral scales, orange-brown, each face prominently longitudinally 5–8-ribbed, many fine transverse ridges evident at 20–30X, broadly obovoid to oblong, thickly biconvex to compressed-trigonous, abaxial angle obscure, lateral angles prominent, faces convex, 0.8–1 × 0.5 mm. 2n = 28.

Scirpus setaceus L., Sp. Pl. 1: 49. 1753; C.B.Clarke, l.c. 654; R.R.Stewart l.c. 103; Schoenoplectus setaceus (L.) Palla, in E. Hallier & A. Brand (eds.), W.D.J. Koch, Syn. Fl. Germ., ed. 3, 3: 2538. 1905; Madalski, Fl. Polon. Terr. Adiac. Icon. 3(1): 258. 1979; Uniyal & al., Cyperaceae Uttar Pradesh: 38 1997.

Scirpus setaceus Linnaeus, Sp. Pl. 1: 49. 1753

Stream banks, pond margins, ditches, coastal, rarely inland; 0–1500m.

By water courses, in boggy places with moving water; 700-3200 m.

Fruiting late spring–fall.

Fl. & Fr.: June - July.

The following is a representative barcode sequence, the centroid of all available sequences for this species.

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 11
Specimens with Barcodes: 15
Species With Barcodes: 1

Canada

Rounded National Status Rank: NNA - Not Applicable

United States

Rounded National Status Rank: NNA - Not Applicable

Rounded Global Status Rank: GNR - Not Yet Ranked