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Onion grass

Scientific Name
Romulea rosea
Scientific Author
Ecklon, C.F. (1827)
Taxonomy
(Magnoliophyta: Liliopsida: Liliales: Iridaceae)
Reliability
High
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Diagnostic Images

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Caption
Australian $2 Coin with seeds
Source
Clare McLellan Museum Victoria
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Diagnostic Images (9)
Other Images (2)
Diagnostic Notes
Pictured: Fruit (a capsule) and seed(s)

Description:

Fruit appendages: Winged with ridges and grooves

Fruit Colour: Straw coloured

Fruit Length: Greater than 10mm

Fruit shape: Cylindrical on downward curving scapes that straighten at maturity

Seed Colour: Reddish brown

Seed Length: 1 - 2mm

Seed Sculpture: Rugose

Seed Shape: Trianular

Small herb; corm globose; aerial stem absent.

Leaves several, basal, 8–40 cm long, 1–2.5 mm wide, compressed, grooved, tough.

Scapes 2–5, 3–12 cm long; outer bract narrow-triangular, 10–15 mm long, herbaceous; inner bract slightly shorter, herbaceous with wide scarious margins, often finely brown-striate. Perianth tube 2–4 mm long, yellow; lobes elliptic, acute, 10–18 mm long, 3–4 mm wide, pale to bright pink, rarely white; outer tepals dark-striped or greenish outside. Style 7–9 mm long; stigmas exceeded by anthers.

Capsule cylindrical, c. 1 cm long, on decurved scapes that straighten at maturity

Source: Royal Botanic Gardens and Domain Trust

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More Information
Author
Clare McLellan
Created
29/05/2012 02:29 AEST
Last Updated
18/01/2013 15:58 AEST
Citation
Clare McLellan (2012) Onion grass (Romulea rosea ) Updated on 1/18/2013 3:58:40 PM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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