Sisyrinchium rosulatum E.P.Bicknell

Annual blue-eyed grass (en), Bermudienne (fr), Sisyrinchium en rosette (fr), Bermudienne en rosette (fr)

Species

Angiosperms > Asparagales > Iridaceae > Sisyrinchium

Characteristics

Herbs, annual or short-lived perennial, cespitose, yellowish green to medium or dark olive green when dry, to 3.6 dm, not glaucous. Stems branched or rarely simple, with 1–2(–3) nodes, 0.7–2 mm wide, glabrous, margins usually entire, similar in color and texture to stem body; first internode 2–10 cm, usually shorter than leaves; distalmost node with 1–2 branches. Leaf blades glabrous, bases not persistent in fibrous tufts. Inflorescences borne singly; spathes green, obviously wider than supporting branch, glabrous, keels usually entire; outer 13–32.2 mm, 2–8.2 mm longer than inner, tapering evenly towards apex or occasionally slightly constricted proximal to apex, margins basally connate 2.3–6.7 mm; inner with keel evenly curved to straight, hyaline margins 0.2–0.3 mm wide, apex acute, occasionally erose, ending 0.3–4.6 mm proximal to green apex. Flowers: perianth flaring distally, campanulate basally; tepals maroon or pink to lavender-rose with purple stripes, or yellow with rosy purple bases; outer tepals 5–11 mm, apex acute, rarely aristate; filaments connate basally, occasionally to 1/2 their length, basally inflated and stipitate-glandular 0.5–0.8 mm; ovary similar in color to foliage. Capsules tan with purplish sutures and sometimes apex, ± globose, 2.1–4.2 mm; pedicel spreading to recurved. Seeds ± globose, sometimes with slight depression, 0.5–1 mm, rugulose. 2n = 32.
More
Annual herb, usually densely tufted. Stems simple or branched, erect, jointed, 2-angled, 5–20 cm high, c. 1 mm wide. Leaves linear, 2–6 cm long, 1–2 mm wide. Rhipidia 3–7-flowered. Spathes opposite, lanceolate with abruptly contracted apices; outer spathe 1.8–3 cm long, inner 1.5–2.3 cm long; margins scarious, white. Perianth urceolate below, spreading above, 5–7 mm diam., pale yellow with brown-purple markings in centre; lobes oblong-acuminate, puberulous outside. Stamens exceeding style branches; filaments 1–1.5 mm long, two-thirds connate, dilated and papillose at base; anthers to 1 mm long. Ovary c. 1 mm diam., puberulous. Capsule globose, 2–3 mm diam., glabrous, green to reddish. Seeds globose, c. 0.7 mm diam., rugose, black.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.25 - 0.35
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

A locally common weed along roads and tracks, in lawns, wasteland, woodlands, littoral rainforest, creek bank, drainage and seepage areas, and in poorly-drained rough pasture.
Light 7-9
Soil humidity 1-5
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 5-12

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Sisyrinchium rosulatum habit picture by bas yves (cc-by-sa)
Sisyrinchium rosulatum habit picture by Eli Small (cc-by-sa)

Leaf

Sisyrinchium rosulatum leaf picture by bas yves (cc-by-sa)
Sisyrinchium rosulatum leaf picture by bas yves (cc-by-sa)
Sisyrinchium rosulatum leaf picture by 道草 (cc-by-sa)

Flower

Sisyrinchium rosulatum flower picture by bas yves (cc-by-sa)
Sisyrinchium rosulatum flower picture by I Tra (cc-by-sa)
Sisyrinchium rosulatum flower picture by しげみ 木村 (cc-by-sa)

Distribution

Sisyrinchium rosulatum world distribution map, present in Åland Islands, Australia, Dominica, Spain, Georgia, Indonesia, Iran (Islamic Republic of), Japan, Madagascar, Nicaragua, Puerto Rico, Korea (Democratic People's Republic of), and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:237763-2
WFO ID wfo-0000786631
COL ID 6YSLX
BDTFX ID 64764
INPN ID 123934
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Sisyrinchium brownei Sisyrinchium exile Sisyrinchium rosulatum